| Vis Team | R | Home Team | R | Box | Winning Pitcher | Losing Pitcher | Save Pitcher |
| Chicago White Sox | 8 | California Angels | 6 | Box | Bruce Howard | Fred Newman | Eddie Fisher |
| San Francisco Giants | 5 | Chicago Cubs | 2 | Box | Juan Marichal | Bill Hands | (none) |
| St. Louis Cardinals | 5 | New York Mets | 4 | Box | Bob Gibson | Gordie Richardson | (none) |
| Atlanta Braves | 5 | Philadelphia Phillies | 4 | Box | Phil Niekro | Chris Short | (none) |
| Cincinnati Reds | 1 | Pittsburgh Pirates | 2 | Box | Bob Veale | Milt Pappas | (none) |
Standings as of 1966-04-21 | Top | Record in remaining games at far right |
| Rk | Lg | MLB | AL - | GP | W | L | Pct | GBL | RF | RA | Diff | Home | Away | StrK | 1966 Links | Manager | General Manager | Ballpark | GP | W | L | Pct |
| 1 | 1 | 1 | Cleveland Indians | 6 | 6 | 0 | 1.000 | -- | 29 | 14 | 15 | 1-0 | 5-0 | W6 | T S R Log Off Def SP D | Gabe Paul | Cleveland Municipal Stadium | 156 | 75 | 81 | .481 | |
| 2 | 2 | 4 | Baltimore Orioles | 7 | 6 | 1 | .857 | 0.5 | 47 | 25 | 22 | 2-0 | 4-1 | W4 | T S R Log Off Def SP D | Harry Dalton | Memorial Stadium | 153 | 91 | 62 | .595 | |
| 3 | 3 | 5 | Chicago White Sox | 7 | 5 | 2 | .714 | 1.5 | 25 | 16 | 9 | 2-1 | 3-1 | W1 | T S R Log Off Def SP D | Ed Short | Comiskey Park | 155 | 78 | 77 | .503 | |
| 4 | 4 | 6 | Detroit Tigers | 9 | 6 | 3 | .667 | 1.5 | 38 | 39 | -1 | 4-2 | 2-1 | L1 | T S R Log Off Def SP D | Jim Campbell | Tiger Stadium | 153 | 82 | 71 | .536 | |
| 5 | 5 | 8 | California Angels | 7 | 4 | 3 | .571 | 2.5 | 27 | 24 | 3 | 3-1 | 1-2 | L1 | T S R Log Off Def SP D | Fred Haney | Anaheim Stadium | 155 | 76 | 79 | .490 | |
| 6 | 6 | 11 | Minnesota Twins | 6 | 3 | 3 | .500 | 3.0 | 19 | 21 | -2 | 0-1 | 3-2 | L3 | T S R Log Off Def SP D | Calvin Griffith | Metropolitan Stadium | 156 | 86 | 70 | .551 | |
| 7 | 7 | 15 | Boston Red Sox | 8 | 2 | 6 | .250 | 5.0 | 30 | 39 | -9 | 0-3 | 2-3 | W1 | T S R Log Off Def SP D | Dick O'Connell | Fenway Park | 154 | 70 | 84 | .455 | |
| 8 | 8 | 16 | Kansas City Athletics | 6 | 1 | 5 | .167 | 5.0 | 10 | 20 | -10 | 0-5 | 1-0 | W1 | T S R Log Off Def SP D | Ed Lopat | Municipal Stadium | 154 | 73 | 81 | .474 | |
| 9 | 9 | 17 | Washington Senators II | 6 | 1 | 5 | .167 | 5.0 | 31 | 44 | -13 | 1-4 | 0-1 | L2 | T S R Log Off Def SP D | George Selkirk | RFK Memorial Stadium | 153 | 70 | 83 | .458 | |
| 10 | 10 | 19 | New York Yankees | 8 | 1 | 7 | .125 | 6.0 | 17 | 31 | -14 | 1-4 | 0-3 | L4 | T S R Log Off Def SP D | Ralph Houk | Yankee Stadium I | 151 | 69 | 82 | .457 | |
| Rk | Lg | MLB | NL - | GP | W | L | Pct | GBL | RF | RA | Diff | Home | Away | StrK | 1966 Links | Manager | General Manager | Ballpark | GP | W | L | Pct |
| 2 | 2 | 2 | Pittsburgh Pirates | 8 | 7 | 1 | .875 | -- | 32 | 28 | 4 | 1-0 | 6-1 | W6 | T S R Log Off Def SP D | Joe Brown | Forbes Field | 154 | 85 | 69 | .552 | |
| 1 | 1 | 3 | San Francisco Giants | 8 | 7 | 1 | .875 | -- | 49 | 26 | 23 | 2-0 | 5-1 | W5 | T S R Log Off Def SP D | Chub Feeney | Candlestick Park | 153 | 86 | 67 | .562 | |
| 3 | 3 | 7 | Los Angeles Dodgers | 9 | 6 | 3 | .667 | 1.5 | 38 | 30 | 8 | 2-1 | 4-2 | W1 | T S R Log Off Def SP D | Buzzie Bavasi | Dodger Stadium | 153 | 89 | 64 | .582 | |
| 4 | 4 | 9 | Atlanta Braves | 7 | 4 | 3 | .571 | 2.5 | 26 | 19 | 7 | 4-2 | 0-1 | W3 | T S R Log Off Def SP D | John McHale | Atlanta Stadium | 155 | 81 | 74 | .523 | |
| 5 | 5 | 10 | Philadelphia Phillies | 8 | 4 | 4 | .500 | 3.0 | 21 | 30 | -9 | 2-0 | 2-4 | L3 | T S R Log Off Def SP D | John Quinn | Connie Mack Stadium | 154 | 83 | 71 | .539 | |
| 6 | 6 | 12 | St. Louis Cardinals | 7 | 3 | 4 | .429 | 3.5 | 33 | 27 | 6 | 3-2 | 0-2 | W2 | T S R Log Off Def SP D | Bing Devine | Sportsman's Park,Busch Stadium II | 155 | 80 | 75 | .516 | |
| 7 | 7 | 13 | New York Mets | 5 | 2 | 3 | .400 | 3.5 | 16 | 18 | -2 | 0-0 | 2-3 | L2 | T S R Log Off Def SP D | George Weiss | Shea Stadium | 156 | 64 | 92 | .410 | |
| 8 | 8 | 14 | Houston Astros | 9 | 3 | 6 | .333 | 4.5 | 30 | 41 | -11 | 2-4 | 1-2 | L1 | T S R Log Off Def SP D | Tal Smith | Astrodome | 153 | 69 | 84 | .451 | |
| 9 | 9 | 18 | Cincinnati Reds | 7 | 1 | 6 | .143 | 5.5 | 17 | 23 | -6 | 1-6 | 0-0 | L5 | T S R Log Off Def SP D | Bill DeWitt | Crosley Field | 153 | 75 | 78 | .490 | |
| 10 | 10 | 20 | Chicago Cubs | 8 | 1 | 7 | .125 | 6.0 | 26 | 46 | -20 | 1-5 | 0-2 | L5 | T S R Log Off Def SP D | John Holland | Wrigley Field | 154 | 58 | 96 | .377 |
Transactions | Top |
| Player Name | Pos | Age | Transaction Description | Roster for Current Team |
| Bob Buhl | P | 37.252 | Traded by Cubs with Larry Jackson to Phillies for Fergie Jenkins, John Herrnstein and Adolfo Phillips. | |
| John Herrnstein | OF-1B | 28.021 | Traded by Phillies with Fergie Jenkins and Adolfo Phillips to Cubs for Bob Buhl and Larry Jackson. | |
| Larry Jackson | P | 34.324 | Traded by Cubs with Bob Buhl to Phillies for Fergie Jenkins, John Herrnstein and Adolfo Phillips. | |
| Fergie Jenkins | P | 22.130 | Traded by Phillies with John Herrnstein and Adolfo Phillips to Cubs for Bob Buhl and Larry Jackson. | |
| Adolfo Phillips | OF | 24.126 | Traded by Phillies with Fergie Jenkins and John Herrnstein to Cubs for Bob Buhl and Larry Jackson. |
