| 2025 | Peoria Chiefs | Midwest League | West | SLN | 130 | 51 | 79 | .392 | 22.0 | 617 | 669 | -52 | 6 | 12 | Roberto Espinoza | Dozer Park | 139,287 | 11 | no info |
| 2024 | Peoria Chiefs | Midwest League | West | SLN | 131 | 59 | 72 | .450 | 18.0 | 530 | 534 | -4 | 5 | 9 | Patrick Anderson | Dozer Park | 164,658 | 10 | no info |
| 2023 | Peoria Chiefs | Midwest League | West | SLN | 132 | 69 | 63 | .523 | 13.0 | 594 | 580 | 14 | 2 | 4 | Patrick Anderson | Dozer Park | 158,209 | 11 | Lost in semi-finals |
| 2022 | Peoria Chiefs | Midwest League | West | SLN | 132 | 56 | 76 | .424 | 17.5 | 579 | 661 | -82 | 5 | 9 | Patrick Anderson | Dozer Park | 135,784 | 11 | no info |
| 2021 | Peoria Chiefs | Midwest League | West | SLN | 120 | 45 | 75 | .375 | 33.0 | 503 | 661 | -158 | 6 | 12 | Jose Leon | Dozer Park | 69,725 | 11 | no info |
| 2020 | Peoria Chiefs | Midwest League | - | SLN | 0 | 0 | 0 | | -- | 0 | 0 | 0 | | 1 | Erick Almonte | Dozer Park | 0 | | no info |
| 2019 | Peoria Chiefs | Midwest League | Western | SLN | 139 | 54 | 85 | .388 | 27.0 | 563 | 713 | -150 | 8 | 15 | Erick Almonte | Dozer Park | 198,545 | 8 | dnq |
| 2018 | Peoria Chiefs | Midwest League | Western | SLN | 139 | 76 | 63 | .547 | 4.5 | 601 | 583 | 18 | 3 | 5 | Chris Swauger | Dozer Park | 208,275 | 9 | Lost in Finals |
| 2017 | Peoria Chiefs | Midwest League | Western | SLN | 139 | 69 | 70 | .496 | 10.5 | 581 | 586 | -5 | 4 | 8 | Chris Swauger | Dozer Park | 212,659 | 9 | Lost in 1st Round |
| 2016 | Peoria Chiefs | Midwest League | Western | SLN | 139 | 73 | 66 | .525 | 12.5 | 602 | 571 | 31 | 3 | 5 | Joe Kruzel | Dozer Park | 230,277 | 9 | Lost in 1st Round |
| 2015 | Peoria Chiefs | Midwest League | Western | SLN | 138 | 75 | 63 | .543 | 13.0 | 569 | 535 | 34 | 4 | 5 | Joe Kruzel | Dozer Park | 225,089 | 9 | Lost in Semi-Finals |
| 2014 | Peoria Chiefs | Midwest League | Western | SLN | 139 | 72 | 67 | .518 | 18.5 | 555 | 570 | -15 | 3 | 5 | Joe Kruzel | O'Brien Field | 217,632 | 10 | dnq |
| 2013 | Peoria Chiefs | Midwest League | Western | SLN | 137 | 68 | 69 | .496 | 19.5 | 573 | 546 | 27 | 4 | 8 | Dann Bilardello | O'Brien Field | 208,616 | 11 | dnq |
| 2012 | Peoria Chiefs | Midwest League | Western | CHN | 138 | 63 | 75 | .457 | 14.5 | 598 | 658 | -60 | 7 | 14 | Casey Kopitzke | O'Brien Field | 190,244 | 10 | dnq |
| 2011 | Peoria Chiefs | Midwest League | Western | CHN | 139 | 60 | 79 | .432 | 22.0 | 569 | 649 | -80 | 8 | 15 | Casey Kopitzke | O'Brien Field | 187,915 | 10 | dnq |
| 2010 | Peoria Chiefs | Midwest League | Western | CHN | 137 | 71 | 66 | .518 | 11.5 | 635 | 630 | 5 | 6 | 8 | Casey Kopitzke | O'Brien Field | 203,558 | 10 | dnq |
| 2009 | Peoria Chiefs | Midwest League | Western | CHN | 138 | 81 | 57 | .587 | -- | 701 | 555 | 146 | 1 | 2 | Marty Pevey | O'Brien Field | 219,168 | 9 | Lost in 1st Round |
| 2008 | Peoria Chiefs | Midwest League | Western | CHN | 138 | 60 | 78 | .435 | 18.5 | 574 | 662 | -88 | 7 | 12 | Ryne Sandberg | O'Brien Field | 275,673 | 6 | dnq |
| 2007 | Peoria Chiefs | Midwest League | Western | CHN | 139 | 71 | 68 | .511 | 7.5 | 581 | 618 | -37 | 5 | 8 | Ryne Sandberg | O'Brien Field | 247,426 | 6 | dnq |
| 2006 | Peoria Chiefs | Midwest League | Western | CHN | 139 | 75 | 64 | .540 | 4.0 | 564 | 567 | -3 | 3 | 5 | Jody Davis | O'Brien Field | 235,031 | 6 | Lost in 1st Round |
| 2005 | Peoria Chiefs | Midwest League | Western | CHN | 140 | 68 | 72 | .486 | 8.5 | 695 | 708 | -13 | 5 | 9 | Julio Garcia | O'Brien Field | 256,612 | 6 | dnq |
| 2004 | Peoria Chiefs | Midwest League | Western | SLN | 139 | 75 | 64 | .540 | 8.0 | 759 | 670 | 89 | 3 | 4 | Joseph Cunningham | O'Brien Field | 211,598 | 7 | Lost in 1st Round |
| 2003 | Peoria Chiefs | Midwest League | Western | SLN | 138 | 65 | 73 | .471 | 11.0 | 571 | 558 | 13 | 6 | 11 | Joseph Cunningham | O'Brien Field | 246,370 | 6 | dnq |
| 2002 | Peoria Chiefs | Midwest League | Western | SLN | 138 | 85 | 53 | .616 | -- | 671 | 486 | 185 | 1 | 1 | Danny Sheaffer | O'Brien Field | 254,407 | 6 | League Champions |
| 2001 | Peoria Chiefs | Midwest League | Western | SLN | 138 | 57 | 81 | .413 | 31.0 | 599 | 761 | -162 | 6 | 11 | Joe Hall | Pete Vonachen Stadium at Meinen Field | 144,772 | 8 | dnq |
| 2000 | Peoria Chiefs | Midwest League | - | SLN | 137 | 63 | 74 | .460 | -- | 590 | 665 | -75 | | 11 | Tom Lawless | Pete Vonachen Stadium at Meinen Field | 0 | | dnq |
| 1999 | Peoria Chiefs | Midwest League | Central | SLN | 139 | 63 | 76 | .453 | 16.0 | 641 | 748 | -107 | 4 | 11 | Brian Rupp | Pete Vonachen Stadium at Meinen Field | 150,254 | 7 | dnq |
| 1998 | Peoria Chiefs | Midwest League | Central | SLN | 140 | 72 | 68 | .514 | -- | 748 | 715 | 33 | 1 | 6 | Jeff Shireman | Pete Vonachen Stadium at Meinen Field | 154,910 | 7 | Lost in 1st Round |
| 1997 | Peoria Chiefs | Midwest League | Central | SLN | 139 | 70 | 69 | .504 | 6.0 | 662 | 746 | -84 | 3 | 8 | Joseph Cunningham | Pete Vonachen Stadium at Meinen Field | 148,585 | 7 | dnq |
| 1996 | Peoria Chiefs | Midwest League | Central | SLN | 136 | 79 | 57 | .581 | -- | 696 | 533 | 163 | 1 | 1 | Roy Silver | Pete Vonachen Stadium at Meinen Field | 187,283 | 8 | Lost in First Round |
| 1995 | Peoria Chiefs | Midwest League | Western | SLN | 134 | 62 | 72 | .463 | 12.0 | 534 | 605 | -71 | 4 | 10 | Roy Silver | Pete Vonachen Stadium at Meinen Field | 195,056 | 7 | dnq |
| 1994 | Peoria Chiefs | Midwest League | Southern | CHN | 138 | 68 | 70 | .493 | 8.5 | 697 | 698 | -1 | 3 | 9 | Steve Roadcap | Pete Vonachen Stadium at Meinen Field | 176,703 | 6 | dnq |
| 1993 | Peoria Chiefs | Midwest League | Southern | CHN | 138 | 59 | 79 | .428 | 23.0 | 578 | 644 | -66 | 4 | 12 | Steve Roadcap | Pete Vonachen Stadium at Meinen Field | 100,811 | 8 | dnq |
| 1992 | Peoria Chiefs | Midwest League | Southern | CHN | 136 | 62 | 74 | .456 | 28.5 | 611 | 625 | -14 | 4 | 9 | Steve Roadcap | Pete Vonachen Stadium at Meinen Field | 172,560 | 4 | dnq |
| 1991 | Peoria Chiefs | Midwest League | Southern | CHN | 138 | 62 | 76 | .449 | 18.5 | 577 | 678 | -101 | 6 | 12 | Bill Hayes | Meinen Field | 212,159 | 4 | dnq |
| 1990 | Peoria Chiefs | Midwest League | Southern | CHN | 137 | 55 | 82 | .401 | 34.5 | 532 | 610 | -78 | 8 | 13 | Greg Mahlberg | Meinen Field | 195,671 | 3 | dnq |
| 1989 | Peoria Chiefs | Midwest League | Southern | CHN | 139 | 80 | 59 | .576 | 1.0 | 572 | 477 | 95 | 2 | 3 | Brad Mills | Meinen Field | 225,757 | 1 | dnq |
| 1988 | Peoria Chiefs | Midwest League | Southern | CHN | 140 | 70 | 70 | .500 | 17.0 | 519 | 513 | 6 | 5 | 7 | Jim Tracy | Meinen Field | 207,294 | 1 | dnq |
| 1987 | Peoria Chiefs | Midwest League | Southern | CHN | 140 | 71 | 69 | .507 | 23.0 | 633 | 617 | 16 | 2 | 6 | Jim Tracy | Meinen Field | 195,832 | 1 | dnq |
| 1986 | Peoria Chiefs | Midwest League | Southern | CHN | 140 | 77 | 63 | .550 | 10.0 | 654 | 619 | 35 | 2 | 4 | Pete Mackanin | Meinen Field | 179,183 | 1 | Lost in Finals |
| 1985 | Peoria Chiefs | Midwest League | Southern | CHN | 140 | 75 | 65 | .536 | -- | 653 | 571 | 82 | 1 | 5 | Pete Mackanin | Meinen Field | 165,053 | 1 | Lost in Finals |
| 1984 | Peoria Chiefs | Midwest League | Southern | CAL | 139 | 66 | 73 | .475 | 4.0 | 598 | 622 | -24 | 2 | 8 | Joe Maddon | Meinen Field | 116,473 | 5 | dnq |
| 1983 | Peoria Suns | Midwest League | Southern | CAL | 139 | 54 | 85 | .388 | 26.0 | 598 | 721 | -123 | 4 | 12 | Joe Coleman | Meinen Field | 84,765 | 8 | dnq |
| 43 record(s) |