| 1978 | ATL | Atlanta Braves | MLB-NL | MLB | team page | 162 | 69 | 93 | 26.0 | 600 | 750 | -150 | 6 | 11 | Bobby Cox | Atlanta-Fulton County Stadium | dnq |
| 1978 | ATL | Richmond Braves | IL | AAA | team page | 139 | 71 | 68 | 13.5 | 588 | 572 | 16 | 4 | 4 | Tommie Aaron | Parker Field | League Champions |
| 1978 | ATL | Savannah Braves | Sou | AA | team page | 144 | 72 | 72 | 10.5 | 496 | 513 | -17 | 3 | 4 | Bobby Dews | Grayson Stadium | Lost in Finals |
| 1978 | ATL | Greenwood Braves | Wcar | A | team page | 139 | 82 | 57 | -- | 800 | 673 | 127 | 1 | 1 | Al Gallagher | Legion Stadium | dnq |
| 1978 | ATL | Gulf Coast Braves | GCL | Rk | team page | 55 | 25 | 30 | 8.0 | 241 | 228 | 13 | 4 | 4 | Pedro Gonzalez | West Palm Beach Municipal Stadium | dnq |
| 1978 | ATL | Kingsport Braves | App | Rk | team page | 70 | 33 | 37 | -- | 288 | 273 | 15 | 5 | 5 | Eddie Haas | Dobyns-Bennett | dnq |
| 1978 | BAL | Baltimore Orioles | MLB-AL | MLB | team page | 161 | 90 | 71 | 9.0 | 659 | 633 | 26 | 4 | 5 | Earl Weaver | Memorial Stadium | dnq |
| 1978 | BAL | Rochester Red Wings | IL | AAA | team page | 140 | 68 | 72 | 17.0 | 636 | 661 | -25 | 6 | 6 | Ken Boyer, Frank Robinson, Al Widmar | Silver Stadium | dnq |
| 1978 | BAL | Charlotte O's | Sou | AA | team page | 144 | 66 | 78 | 16.5 | 494 | 554 | -60 | 5 | 8 | Lance Nichols | Crockett Park | dnq |
| 1978 | BAL | Miami Orioles | FSL | A+ | team page | 141 | 76 | 65 | -- | 584 | 553 | 31 | 1 | 4 | Jimmy Williams | Miami Stadium | League Champions |
| 1978 | BAL | Bluefield Orioles | App | Rk | team page | 69 | 29 | 40 | -- | 291 | 320 | -29 | 7 | 6 | J.R. Miner | Bowen Field at Peters Park | dnq |
| 1978 | BOS | Boston Red Sox | MLB-AL | MLB | team page | 163 | 99 | 64 | 1.0 | 796 | 657 | 139 | 2 | 2 | Don Zimmer | Fenway Park | dnq |
| 1978 | BOS | Pawtucket Red Sox | IL | AAA | team page | 140 | 81 | 59 | 4.0 | 626 | 558 | 68 | 2 | 2 | Joe Morgan | McCoy Stadium | Lost in Finals |
| 1978 | BOS | Bristol Red Sox | East | AA | team page | 138 | 72 | 66 | 9.5 | 569 | 512 | 57 | 3 | 3 | Tony Torchia | Muzzy Field | League Champions |
| 1978 | BOS | Winston-Salem Red Sox | Caro | A+ | team page | 132 | 55 | 77 | 31.5 | 524 | 638 | -114 | 6 | 6 | Bill Slack | Ernie Shore Field | dnq |
| 1978 | BOS | Winter Haven Red Sox | FSL | A+ | team page | 138 | 82 | 56 | 1.0 | 550 | 459 | 91 | 2 | 2 | Rac Slider | Chain of Lakes Park | dnq |
| 1978 | BOS | Elmira Pioneers | NYPL | A- | team page | 69 | 21 | 48 | 29.5 | 228 | 367 | -139 | 5 | 10 | Dick Berardino | Dunn Field | dnq |
| 1978 | CAL | California Angels | MLB-AL | MLB | team page | 162 | 87 | 75 | 5.0 | 691 | 666 | 25 | 3 | 6 | Jim Fregosi, Dave Garcia | Anaheim Stadium | dnq |
| 1978 | CAL | Salt Lake Gulls | PCL | AAA | team page | 137 | 72 | 65 | 4.5 | 783 | 794 | -11 | 3 | 5 | Deron Johnson | Derks Field | Lost in Semi-Finals |
| 1978 | CAL | El Paso Diablos | Tex | AA | team page | 135 | 80 | 55 | -- | 853 | 711 | 142 | 1 | 1 | Moose Stubing | Dudley Field | League Champions |
| 1978 | CAL | Salinas Angels | Calif | A+ | team page | 140 | 84 | 56 | 13.5 | 729 | 607 | 122 | 2 | 3 | Chuck Cottier | Salinas Municipal Stadium | dnq |
| 1978 | CAL | Quad Cities Angels | Midw | A | team page | 137 | 67 | 70 | 1.5 | 663 | 627 | 36 | 2 | 4 | Cotton Nash | John O'Donnell Stadium | Lost in Semi-Finals |
| 1978 | CAL | Idaho Falls Angels | Pio | Rk | team page | 68 | 41 | 27 | 9.0 | 535 | 448 | 87 | 2 | 2 | Reuben Rodriguez | McDermott Field | Lost in Finals |
| 1978 | CHN | Chicago Cubs | MLB-NL | MLB | team page | 162 | 79 | 83 | 11.0 | 664 | 724 | -60 | 3 | 7 | Herman Franks | Wrigley Field | dnq |
| 1978 | CHN | Wichita Aeros | Amer | AAA | team page | 135 | 58 | 77 | -- | 615 | 768 | -153 | 1 | 8 | Harry Dunlop | Lawrence-Dumont Stadium | dnq |
| 1978 | CHN | Midland Cubs | Tex | AA | team page | 135 | 70 | 65 | 10.0 | 782 | 753 | 29 | 3 | 5 | Jim Saul | Cubs Stadium | dnq |
| 1978 | CHN | Pompano Beach Cubs | FSL | A+ | team page | 141 | 72 | 69 | 4.0 | 620 | 612 | 8 | 3 | 7 | Jack Hiatt | Pompano Beach Municipal Stadium | dnq |
| 1978 | CHN | Geneva Cubs | NYPL | A- | team page | 71 | 51 | 20 | -- | 559 | 338 | 221 | 1 | 2 | Bob Hartsfield | McDonough Park | League Champions |
| 1978 | CHN | Gulf Coast Cubs | GCL | Rk | team page | 54 | 30 | 24 | 2.5 | 214 | 263 | -49 | 3 | 3 | Randy Hundley | Bradenton | dnq |
| 1978 | CHA | Chicago White Sox | MLB-AL | MLB | team page | 161 | 71 | 90 | 20.5 | 634 | 731 | -97 | 5 | 10 | Larry Doby, Bob Lemon | Comiskey Park | dnq |
| 1978 | CHA | Iowa Oaks | Amer | AAA | team page | 136 | 66 | 70 | 12.0 | 629 | 629 | 0 | 4 | 6 | Joe Sparks | Sec Taylor Stadium | dnq |
| 1978 | CHA | Knoxville Sox | Sou | AA | team page | 144 | 88 | 56 | -- | 653 | 558 | 95 | 1 | 1 | Joe Jones, Tony La Russa | Bill Meyer Stadium | League Champions |
| 1978 | CHA | Appleton Foxes | Midw | A | team page | 137 | 97 | 40 | -- | 729 | 550 | 179 | 1 | 1 | Gordy Lund | Goodland Field | League Champions |
| 1978 | CIN | Cincinnati Reds | MLB-NL | MLB | team page | 161 | 92 | 69 | 2.5 | 710 | 688 | 22 | 2 | 2 | Sparky Anderson | Riverfront Stadium | dnq |
| 1978 | CIN | Indianapolis Indians | Amer | AAA | team page | 135 | 78 | 57 | 0.5 | 735 | 661 | 74 | 2 | 1 | Roy Majtyka | Bush Stadium | Lost in Finals |
| 1978 | CIN | Nashville Sounds | Sou | AA | team page | 141 | 64 | 77 | 22.5 | 497 | 504 | -7 | 4 | 9 | Chuck Goggin | Herschel Greer Stadium | dnq |
| 1978 | CIN | Tampa Tarpons | FSL | A+ | team page | 134 | 61 | 73 | 20.0 | 460 | 478 | -18 | 4 | 9 | Mike Compton | Al Lopez Field | dnq |
| 1978 | CIN | Shelby Reds | Wcar | A | team page | 139 | 75 | 64 | 7.0 | 558 | 494 | 64 | 2 | 2 | Jim Lett | Veterans Field | dnq |
| 1978 | CIN | Eugene Emeralds | Nwst | A- | team page | 70 | 36 | 34 | -- | 388 | 385 | 3 | 1 | 4 | Greg Riddoch | Civic Stadium | Lost in Finals |
| 1978 | CIN | Billings Mustangs | Pio | Rk | team page | 68 | 50 | 18 | -- | 507 | 317 | 190 | 1 | 1 | Jim Hoff | Cobb Field | League Champions |
| 1978 | CLE | Cleveland Indians | MLB-AL | MLB | team page | 159 | 69 | 90 | 29.0 | 639 | 694 | -55 | 6 | 11 | Jeff Torborg | Cleveland Stadium | dnq |
| 1978 | CLE | Portland Beavers | PCL | AAA | team page | 138 | 76 | 62 | 4.5 | 827 | 838 | -11 | 2 | 3 | Gene Dusan | Civic Stadium | dnq |
| 1978 | CLE | Chattanooga Lookouts | Sou | AA | team page | 143 | 63 | 80 | 24.5 | 483 | 561 | -78 | 5 | 10 | Jimmy Bragan, John Orsino | Engel Stadium | dnq |
| 1978 | CLE | Waterloo Indians | Midw | A | team page | 137 | 91 | 46 | 6.0 | 729 | 527 | 202 | 2 | 2 | Woody Smith | Municipal Stadium | Lost in Semi-Finals |
| 1978 | CLE | Batavia Trojans | NYPL | A- | team page | 72 | 34 | 38 | 17.5 | 420 | 506 | -86 | 3 | 5 | Luis Isaac | Dwyer Stadium | dnq |
| 1978 | DET | Detroit Tigers | MLB-AL | MLB | team page | 162 | 86 | 76 | 13.5 | 714 | 653 | 61 | 5 | 8 | Ralph Houk | Tiger Stadium | dnq |
| 1978 | DET | Evansville Triplets | Amer | AAA | team page | 136 | 78 | 58 | -- | 676 | 519 | 157 | 1 | 2 | Les Moss | Bosse Field | dnq |
| 1978 | DET | Montgomery Rebels | Sou | AA | team page | 144 | 67 | 77 | 21.0 | 496 | 580 | -84 | 3 | 7 | Ed Brinkman | Paterson Field | dnq |
| 1978 | DET | Lakeland Tigers | FSL | A+ | team page | 138 | 78 | 60 | 5.0 | 524 | 496 | 28 | 3 | 3 | Jim Leyland | Joker Marchant Stadium | Lost in Finals |
| 1978 | DET | Bristol Tigers | App | Rk | team page | 69 | 35 | 34 | -- | 333 | 327 | 6 | 4 | 3 | Joe Lewis | Devault Memorial Stadium | dnq |
| 1978 | HOU | Houston Astros | MLB-NL | MLB | team page | 162 | 74 | 88 | 21.0 | 605 | 634 | -29 | 5 | 9 | Bill Virdon | Astrodome | dnq |
| 1978 | HOU | Charleston Charlies | IL | AAA | team page | 140 | 85 | 55 | -- | 652 | 580 | 72 | 1 | 1 | Jim Beauchamp | Walt Powell Park | Lost in Semi-Finals |
| 1978 | HOU | Columbus Astros | Sou | AA | team page | 143 | 70 | 73 | 12.0 | 501 | 542 | -41 | 4 | 6 | Jimmy Johnson | Golden Park | dnq |
| 1978 | HOU | Daytona Astros | FSL | A+ | team page | 135 | 42 | 93 | 39.5 | 456 | 699 | -243 | 6 | 11 | Leo Posada, Charles Sprinkle | Jackie Robinson Ballpark | dnq |
| 1978 | HOU | Gulf Coast Astros | GCL | Rk | team page | 54 | 23 | 31 | 9.5 | 237 | 234 | 3 | 5 | 5 | Julio Linares | Sarasota | dnq |
| 1978 | KCA | Kansas City Royals | MLB-AL | MLB | team page | 162 | 92 | 70 | -- | 743 | 634 | 109 | 1 | 4 | Whitey Herzog | Royals Stadium | Lost ALCS (Yankees) |
| 1978 | KCA | Omaha Royals | Amer | AAA | team page | 135 | 66 | 69 | 8.0 | 649 | 652 | -3 | 3 | 4 | John Sullivan | Johnny Rosenblatt Stadium | League Champions |
| 1978 | KCA | Jacksonville Suns | Sou | AA | team page | 142 | 73 | 69 | 8.5 | 576 | 516 | 60 | 2 | 3 | Gordon Mackenzie | Sam W. Wolfson Baseball Park | dnq |
| 1978 | KCA | Fort Myers Royals | FSL | A+ | team page | 137 | 71 | 66 | 3.0 | 560 | 537 | 23 | 4 | 6 | Gene Lamont | Terry Park Ballfield | Lost in Semi-Finals |
| 1978 | KCA | Gulf Coast Royals | GCL | Rk | team page | 55 | 31 | 24 | 2.0 | 268 | 200 | 68 | 2 | 2 | Jose Martinez | Ed Smith Stadium | dnq |
| 1978 | LAN | Los Angeles Dodgers | MLB-NL | MLB | team page | 162 | 95 | 67 | -- | 727 | 573 | 154 | 1 | 1 | Tommy Lasorda | Dodger Stadium | Lost World Series (Yankees) |
| 1978 | LAN | Albuquerque Dukes | PCL | AAA | team page | 140 | 78 | 62 | -- | 857 | 855 | 2 | 1 | 2 | Del Crandall | Albuquerque Sports Stadium | Co-League Champions |
| 1978 | LAN | San Antonio Dodgers | Tex | AA | team page | 136 | 79 | 57 | 1.5 | 644 | 590 | 54 | 2 | 3 | Don LeJohn | V.J. Keefe Memorial Stadium | dnq |
| 1978 | LAN | Lodi Dodgers | Calif | A+ | team page | 140 | 85 | 55 | -- | 903 | 694 | 209 | 1 | 2 | Stan Wasiak | Lawrence Park | Lost in Finals |
| 1978 | LAN | Clinton Dodgers | Midw | A | team page | 136 | 53 | 83 | 15.0 | 584 | 750 | -166 | 4 | 8 | Dick McLaughlin | Riverview Stadium | dnq |
| 1978 | LAN | Lethbridge Dodgers | Pio | Rk | team page | 68 | 33 | 35 | 17.0 | 488 | 417 | 71 | 5 | 5 | Jim Lefebvre | Henderson Stadium | dnq |
| 1978 | MIL | Milwaukee Brewers | MLB-AL | MLB | team page | 162 | 93 | 69 | 6.5 | 804 | 650 | 154 | 3 | 3 | George Bamberger | County Stadium | dnq |
| 1978 | MIL | Spokane Indians | PCL | AAA | team page | 139 | 64 | 75 | 17.0 | 734 | 759 | -25 | 4 | 8 | John Felske | Avista Stadium | dnq |
| 1978 | MIL | Holyoke Millers | East | AA | team page | 137 | 61 | 76 | 20.0 | 611 | 725 | -114 | 5 | 5 | George Farson | Mackenzie Stadium | dnq |
| 1978 | MIL | Burlington Bees | Midw | A | team page | 138 | 69 | 69 | -- | 715 | 646 | 69 | 1 | 3 | Lee Sigman | Community Field | Lost in Finals |
| 1978 | MIL | Newark Co-Pilots | NYPL | A- | team page | 72 | 26 | 46 | 25.5 | 311 | 444 | -133 | 5 | 9 | Ken Richardson | Colburn Park | dnq |
| 1978 | MIN | Minnesota Twins | MLB-AL | MLB | team page | 162 | 73 | 89 | 19.0 | 666 | 678 | -12 | 4 | 9 | Gene Mauch | Metropolitan Stadium | dnq |
| 1978 | MIN | Toledo Mud Hens | IL | AAA | team page | 140 | 74 | 66 | 11.0 | 592 | 657 | -65 | 3 | 3 | Cal Ermer | Lucas County Stadium | Lost in Semi-Finals |
| 1978 | MIN | Orlando Twins | Sou | AA | team page | 143 | 82 | 61 | -- | 602 | 487 | 115 | 1 | 2 | Johnny Goryl | Tinker Field | Lost in Semi-Finals |
| 1978 | MIN | Visalia Oaks | Calif | A+ | team page | 139 | 97 | 42 | -- | 1007 | 679 | 328 | 1 | 1 | Roy McMillan | Recreation Park | League Champions |
| 1978 | MIN | Wisconsin Rapids Twins | Midw | A | team page | 138 | 62 | 76 | 35.5 | 670 | 678 | -8 | 3 | 5 | Rick Stelmaszek | Witter Field | dnq |
| 1978 | MIN | Elizabethton Twins | App | Rk | team page | 69 | 41 | 28 | -- | 333 | 284 | 49 | 2 | 1 | Fred Waters | Joe O'Brien Field | dnq |
| 1978 | MON | Montreal Expos | MLB-NL | MLB | team page | 162 | 76 | 86 | 14.0 | 633 | 611 | 22 | 4 | 8 | Dick Williams | Olympic Stadium | dnq |
| 1978 | MON | Denver Bears | Amer | AAA | team page | 135 | 66 | 69 | 8.0 | 769 | 807 | -38 | 2 | 5 | Doc Edwards | Mile High Stadium | dnq |
| 1978 | MON | Memphis Chicks | Sou | AA | team page | 144 | 71 | 73 | 17.0 | 517 | 509 | 8 | 2 | 5 | Felipe Alou | Tim McCarver Stadium | dnq |
| 1978 | MON | West Palm Beach Expos | FSL | A+ | team page | 144 | 67 | 77 | 10.5 | 521 | 561 | -40 | 5 | 8 | Larry Bearnarth | West Palm Beach Municipal Stadium | dnq |
| 1978 | MON | Jamestown Expos | NYPL | A- | team page | 72 | 44 | 28 | 7.5 | 409 | 377 | 32 | 2 | 3 | Pat Daugherty | College Stadium | dnq |
| 1978 | NYN | New York Mets | MLB-NL | MLB | team page | 162 | 66 | 96 | 24.0 | 607 | 690 | -83 | 6 | 12 | Joe Torre | Shea Stadium | dnq |
| 1978 | NYN | Tidewater Tides | IL | AAA | team page | 140 | 69 | 71 | 16.0 | 605 | 602 | 3 | 5 | 5 | Frank Verdi | Met Park | dnq |
| 1978 | NYN | Jackson Mets | Tex | AA | team page | 134 | 76 | 58 | 2.0 | 540 | 479 | 61 | 2 | 4 | Bob Wellman | Smith-Wills Stadium | Lost in Finals |
| 1978 | NYN | Lynchburg Mets | Caro | A+ | team page | 137 | 73 | 64 | 16.0 | 601 | 521 | 80 | 2 | 3 | Jack Aker | Lynchburg City Stadium | League Champions |
| 1978 | NYN | Wausau Mets | Midw | A | team page | 136 | 55 | 81 | 41.5 | 578 | 781 | -203 | 4 | 6 | Dan Monzon | Athletic Park | dnq |
| 1978 | NYN | Little Falls Mets | NYPL | A- | team page | 71 | 29 | 42 | 22.5 | 366 | 403 | -37 | 4 | 8 | Chris Krug | Little Falls Veterans Memorial Park | dnq |
| 1978 | NYA | New York Yankees | MLB-AL | MLB | team page | 163 | 100 | 63 | -- | 735 | 582 | 153 | 1 | 1 | Billy Martin, Bob Lemon, Dick Howser | Yankee Stadium I | Won World Series (Dodgers) |
| 1978 | NYA | Tacoma Yankees | PCL | AAA | team page | 137 | 80 | 57 | -- | 809 | 619 | 190 | 1 | 1 | Mike Ferraro | Cheney Stadium | Co-League Champions |
| 1978 | NYA | West Haven Yankees | East | AA | team page | 139 | 82 | 57 | -- | 712 | 622 | 90 | 1 | 1 | Stump Merrill | Quigley Stadium | dnq |
| 1978 | NYA | Fort Lauderdale Yankees | FSL | A+ | team page | 142 | 74 | 68 | 2.5 | 523 | 464 | 59 | 2 | 5 | Doug Holmquist | Fort Lauderdale Stadium | dnq |
| 1978 | NYA | Oneonta Yankees | NYPL | A- | team page | 70 | 51 | 19 | -- | 443 | 292 | 151 | 1 | 1 | Art Mazmanian | Damaschke Field | Lost in Finals |
| 1978 | OAK | Oakland Athletics | MLB-AL | MLB | team page | 162 | 69 | 93 | 23.0 | 532 | 690 | -158 | 6 | 12 | Jack McKeon, Bobby Winkles | Oakland-Alameda County Coliseum | dnq |
| 1978 | OAK | Vancouver Canadians | PCL | AAA | team page | 139 | 74 | 65 | 7.0 | 780 | 764 | 16 | 3 | 4 | Jim Marshall | Nat Bailey Stadium | dnq |
| 1978 | OAK | Jersey City A's | East | AA | team page | 137 | 54 | 83 | 27.0 | 577 | 603 | -26 | 6 | 6 | John Kennedy | Roosevelt Stadium | dnq |
| 1978 | OAK | Modesto A's | Calif | A+ | team page | 140 | 61 | 79 | 24.0 | 672 | 834 | -162 | 4 | 6 | Gaylen Pitts | Del Webb Field | dnq |
| 1978 | OAK | Bend Timber Hawks | Nwst | A- | team page | 72 | 35 | 37 | 2.0 | 435 | 426 | 9 | 2 | 5 | Edward Nottle | Vince Genna Stadium | dnq |
| 1978 | PHI | Philadelphia Phillies | MLB-NL | MLB | team page | 162 | 90 | 72 | -- | 708 | 586 | 122 | 1 | 3 | Danny Ozark | Veterans Stadium | Lost NLCS (Dodgers) |
| 1978 | PHI | Oklahoma City 89ers | Amer | AAA | team page | 136 | 62 | 74 | 3.5 | 721 | 718 | 3 | 4 | 7 | Mike Ryan | All Sports Stadium | dnq |
| 1978 | PHI | Reading Phillies | East | AA | team page | 136 | 79 | 57 | 1.5 | 643 | 607 | 36 | 2 | 2 | Lee Elia | Reading Municipal Memorial Stadium | Lost in Finals |
| 1978 | PHI | Peninsula Pilots | Caro | A+ | team page | 139 | 90 | 49 | -- | 704 | 469 | 235 | 1 | 1 | Jim Snyder | War Memorial Stadium | Lost in Finals |
| 1978 | PHI | Spartanburg Phillies | Wcar | A | team page | 140 | 73 | 67 | 9.5 | 641 | 668 | -27 | 4 | 4 | Ron Clark | Duncan Park | dnq |
| 1978 | PHI | Helena Phillies | Pio | Rk | team page | 68 | 30 | 38 | 20.0 | 454 | 479 | -25 | 6 | 6 | Larry Rojas | Kindrick Field | dnq |
| 1978 | PIT | Pittsburgh Pirates | MLB-NL | MLB | team page | 161 | 88 | 73 | 1.5 | 684 | 637 | 47 | 2 | 5 | Chuck Tanner | Three Rivers Stadium | dnq |
| 1978 | PIT | Columbus Clippers | IL | AAA | team page | 139 | 61 | 78 | 23.5 | 693 | 642 | 51 | 7 | 7 | Johnny Lipon | Cooper Stadium | dnq |
| 1978 | PIT | Shreveport Captains | Tex | AA | team page | 136 | 55 | 81 | 24.0 | 556 | 660 | -104 | 4 | 7 | Steve Demeter | SPAR Stadium | dnq |
| 1978 | PIT | Salem Pirates | Caro | A+ | team page | 135 | 72 | 63 | 16.0 | 617 | 556 | 61 | 3 | 2 | Jim Mahoney | Salem Municipal Stadium | dnq |
| 1978 | PIT | Charleston Pirates | Wcar | A | team page | 140 | 47 | 93 | 35.5 | 501 | 715 | -214 | 6 | 6 | Bill Scripture | College Park | dnq |
| 1978 | PIT | Gulf Coast Pirates | GCL | Rk | team page | 53 | 21 | 32 | 11.0 | 193 | 314 | -121 | 6 | 6 | Woody Huyke | Pirate City Stadium | dnq |
| 1978 | SDN | San Diego Padres | MLB-NL | MLB | team page | 162 | 84 | 78 | 11.0 | 591 | 598 | -7 | 4 | 6 | Roger Craig | San Diego Stadium | dnq |
| 1978 | SDN | Hawaii Islanders | PCL | AAA | team page | 138 | 56 | 82 | 24.5 | 636 | 701 | -65 | 5 | 9 | Dick Phillips | Aloha Stadium | dnq |
| 1978 | SDN | Amarillo Gold Sox | Tex | AA | team page | 133 | 44 | 89 | 35.0 | 569 | 783 | -214 | 4 | 8 | Glenn Ezell | Potter County Memorial Stadium | dnq |
| 1978 | SDN | Reno Silver Sox | Calif | A+ | team page | 140 | 62 | 78 | 23.0 | 909 | 1098 | -189 | 3 | 5 | Eddie Watt | Moana Stadium | dnq |
| 1978 | SDN | Walla Walla Padres | Nwst | A- | team page | 69 | 45 | 24 | 1.5 | 477 | 340 | 137 | 2 | 2 | Cliff Ditto | Borleske Stadium | dnq |
| 1978 | SFN | San Francisco Giants | MLB-NL | MLB | team page | 162 | 89 | 73 | 6.0 | 613 | 594 | 19 | 3 | 4 | Joe Altobelli | Candlestick Park | dnq |
| 1978 | SFN | Phoenix Giants | PCL | AAA | team page | 140 | 72 | 68 | 6.0 | 674 | 686 | -12 | 2 | 6 | Rocky Bridges | Phoenix Municipal Stadium | dnq |
| 1978 | SFN | Waterbury Giants | East | AA | team page | 139 | 65 | 74 | 17.0 | 563 | 607 | -44 | 4 | 4 | Andy Gilbert | Municipal Stadium | dnq |
| 1978 | SFN | Fresno Giants | Calif | A+ | team page | 139 | 59 | 80 | 38.0 | 690 | 742 | -52 | 3 | 7 | John Van Ornum | Euless Ballpark | dnq |
| 1978 | SFN | Cedar Rapids Giants | Midw | A | team page | 135 | 53 | 82 | 14.5 | 559 | 676 | -117 | 3 | 7 | Jack Mull | Veterans Field | dnq |
| 1978 | SFN | Great Falls Giants | Pio | Rk | team page | 67 | 33 | 34 | 16.5 | 390 | 391 | -1 | 4 | 4 | Ernie Rodriguez | Legion Field | dnq |
| 1978 | SEA | Seattle Mariners | MLB-AL | MLB | team page | 160 | 56 | 104 | 35.0 | 614 | 834 | -220 | 7 | 14 | Darrell Johnson | The Kingdome | dnq |
| 1978 | SEA | San Jose Missions | PCL | AAA | team page | 140 | 53 | 87 | 25.0 | 648 | 814 | -166 | 5 | 10 | Rene Lachemann | San Jose Municipal Stadium | dnq |
| 1978 | SEA | Stockton Mariners | Calif | A+ | team page | 140 | 63 | 77 | 22.0 | 628 | 661 | -33 | 2 | 4 | Bobby Floyd | Billy Hebert Field | dnq |
| 1978 | SEA | Bellingham Mariners | Nwst | A- | team page | 71 | 41 | 30 | 6.5 | 361 | 404 | -43 | 3 | 3 | Bob Didier | Joe Martin Field | dnq |
| 1978 | SLN | St. Louis Cardinals | MLB-NL | MLB | team page | 162 | 69 | 93 | 21.0 | 600 | 657 | -57 | 5 | 10 | Ken Boyer, Vern Rapp, Jack Krol | Busch Stadium II | dnq |
| 1978 | SLN | Springfield Redbirds | Amer | AAA | team page | 136 | 70 | 66 | 8.0 | 723 | 696 | 27 | 3 | 3 | Jimy Williams | Lanphier Park | dnq |
| 1978 | SLN | Arkansas Travelers | Tex | AA | team page | 132 | 77 | 55 | -- | 715 | 553 | 162 | 1 | 2 | Tommy Thompson | Ray Winder Field | Lost in Semi-Finals |
| 1978 | SLN | St. Petersburg Cardinals | FSL | A+ | team page | 140 | 84 | 56 | -- | 569 | 409 | 160 | 1 | 1 | Hal Lanier | Al Lang Field | Lost in Semi-Finals |
| 1978 | SLN | Gastonia Cardinals | Wcar | A | team page | 140 | 69 | 71 | 13.5 | 644 | 663 | -19 | 5 | 5 | Buzzy Keller | Sims Legion Park | dnq |
| 1978 | SLN | Calgary Cardinals | Pio | Rk | team page | 69 | 37 | 32 | 13.5 | 438 | 434 | 4 | 3 | 3 | Johnny Lewis | Burns Stadium | dnq |
| 1978 | SLN | Johnson City Cardinals | App | Rk | team page | 70 | 37 | 33 | -- | 318 | 344 | -26 | 3 | 2 | Nick Leyva | Howard Johnson Field | dnq |
| 1978 | TEX | Texas Rangers | MLB-AL | MLB | team page | 162 | 87 | 75 | 5.0 | 692 | 632 | 60 | 2 | 7 | Billy Hunter, Pat Corrales | Arlington Stadium | dnq |
| 1978 | TEX | Tucson Toros | PCL | AAA | team page | 140 | 69 | 71 | 9.0 | 941 | 861 | 80 | 4 | 7 | Rich Donnelly | Hi Corbett Field | dnq |
| 1978 | TEX | Tulsa Drillers | Tex | AA | team page | 135 | 57 | 78 | 21.5 | 636 | 761 | -125 | 3 | 6 | Marty Martinez | Oiler Park | dnq |
| 1978 | TEX | Asheville Tourists | Wcar | A | team page | 140 | 73 | 67 | 9.5 | 665 | 608 | 57 | 3 | 3 | Wayne Terwilliger | McCormick Field | dnq |
| 1978 | TEX | Gulf Coast Rangers | GCL | Rk | team page | 55 | 33 | 22 | -- | 297 | 211 | 86 | 1 | 1 | Joe Klein | Payne Park | dnq |
| 1978 | TOR | Toronto Blue Jays | MLB-AL | MLB | team page | 161 | 59 | 102 | 40.0 | 590 | 775 | -185 | 7 | 13 | Roy Hartsfield | Exhibition Stadium | dnq |
| 1978 | TOR | Syracuse Chiefs | IL | AAA | team page | 140 | 50 | 90 | 35.0 | 567 | 702 | -135 | 8 | 8 | Vern Benson | MacArthur Stadium | dnq |
| 1978 | TOR | Dunedin Blue Jays | FSL | A+ | team page | 142 | 59 | 83 | 26.0 | 515 | 623 | -108 | 5 | 10 | Denis Menke | Grant Field | dnq |
| 1978 | TOR | Utica Blue Jays | NYPL | A- | team page | 71 | 37 | 34 | 14.5 | 454 | 438 | 16 | 2 | 4 | Duane Larson | Donovan Stadium at Murnane Field | dnq |
| 1978 | TOR | Medicine Hat Blue Jays | Pio | Rk | team page | 68 | 28 | 40 | 22.0 | 394 | 537 | -143 | 7 | 7 | John McLaren | Athletic Park | dnq |