| 2026 | SKCSporting Kansas City | 26 | 6-17-3 | 21 | 0.81 | −32 | 3Points behind the next-worst side | Trophy |
| 2025 | DCD.C. United | 34 | 5-18-11 | 26 | 0.76 | −36 | 2Points behind the next-worst side | Trophy |
| 2024 | SJSan Jose Earthquakes | 34 | 6-25-3 | 21 | 0.62 | −37 | 9Points behind the next-worst side | Trophy |
| 2023 | TORToronto FC | 34 | 4-20-10 | 22 | 0.65 | −33 | 5Points behind the next-worst side | Trophy |
| 2022 | DCD.C. United | 34 | 7-21-6 | 27 | 0.79 | −35 | 7Points behind the next-worst side | Trophy |
| 2021 | CINFC Cincinnati | 34 | 4-22-8 | 20 | 0.59 | −37 | 8Points behind the next-worst side | Trophy |
| 2020 | CINFC Cincinnati | 23 | 4-15-4 | 16 | 0.70 | −24 | 5Points behind the next-worst side | Not awarded |
| 2019 | CINFC Cincinnati | 34 | 6-22-6 | 24 | 0.71 | −44 | 10Points behind the next-worst side | Trophy |
| 2018 | SJSan Jose Earthquakes | 34 | 4-21-9 | 21 | 0.62 | −22 | 7Points behind the next-worst side | Trophy |
| 2017 | LALA Galaxy | 34 | 8-18-8 | 32 | 0.94 | −22 | 0Points behind the next-worst side | Trophy |
| 2016 | CHIChicago Fire | 34 | 7-17-10 | 31 | 0.91 | −16 | 3Points behind the next-worst side | Trophy |
| 2015 | CHIChicago Fire | 34 | 8-20-6 | 30 | 0.88 | −15 | 7Points behind the next-worst side | Trophy |
| 2014 | MTLMontreal Impact | 34 | 6-18-10 | 28 | 0.82 | −20 | 2Points behind the next-worst side | Retroactive |
| 2013 | DCD.C. United | 34 | 3-24-7 | 16 | 0.47 | −37 | 10Points behind the next-worst side | Retroactive |
| 2012 | TORToronto FC | 34 | 5-21-8 | 23 | 0.68 | −26 | 7Points behind the next-worst side | Retroactive |
| 2011 | NENew England Revolution | 34 | 5-16-13 | 28 | 0.82 | −20 | 0Points behind the next-worst side | Retroactive |
| 2010 | DCD.C. United | 30 | 6-20-4 | 22 | 0.73 | −26 | 6Points behind the next-worst side | Retroactive |
| 2009 | RBNYNew York Red Bulls | 30 | 5-19-6 | 21 | 0.70 | −20 | 9Points behind the next-worst side | Retroactive |
| 2008 | LALA Galaxy | 30 | 8-13-9 | 33 | 1.10 | −7 | 0Points behind the next-worst side | Retroactive |
| 2007 | TORToronto FC | 30 | 6-17-7 | 25 | 0.83 | −24 | 2Points behind the next-worst side | Retroactive |
| 2006 | CLBColumbus Crew | 32 | 8-15-9 | 33 | 1.03 | −12 | 5Points behind the next-worst side | Retroactive |
| 2005 | CHVChivas USA | 32 | 4-22-6 | 18 | 0.56 | −36 | 2Points behind the next-worst side | Retroactive |
| 2004 | CHIChicago Fire | 30 | 8-13-9 | 33 | 1.10 | −8 | 0Points behind the next-worst side | Retroactive |
| 2003 | DALDallas Burn | 30 | 6-19-5 | 23 | 0.77 | −29 | 13Points behind the next-worst side | Retroactive |
| 2002 | DCD.C. United | 28 | 9-14-5 | 32 | 1.14 | −9 | 3Points behind the next-worst side | Retroactive |
| 2001 | TBTampa Bay Mutiny | 27 | 4-21-2 | 14 | 0.52 | −36 | 9Points behind the next-worst side | Retroactive |
| 2000 | SJSan Jose Earthquakes | 32 | 7-17-8 | 29 | 0.91 | −15 | 1Points behind the next-worst side | Retroactive |
| 1999 | METMetroStars | 32 | 7-25 (3 SOW) | 15 | 0.47 | −32 | 5Points behind the next-worst side | Retroactive |
| 1998 | NENew England Revolution | 32 | 11-21 (2 SOW) | 29 | 0.91 | −13 | 3Points behind the next-worst side | Retroactive |
| 1997 | SJSan Jose Clash | 32 | 12-20 (3 SOW) | 30 | 0.94 | −4 | 5Points behind the next-worst side | Retroactive |
| 1996 | COLColorado Rapids | 32 | 11-21 (2 SOW) | 29 | 0.91 | −15 | 4Points behind the next-worst side | Retroactive |