Sixteen upsets took place among the major MMA organizations in April, including several enormous ones that made it the most surprising month of action so far this year. Topping the list was Frank Edgar’s stunning victory over BJ Penn at UFC 112 to become the leading organization’s lightweight champion. At -900, Penn was the heaviest favorite to lose in a major MMA organization in over two years. In second place, receiving virtually no discussion within the MMA community but yet still a monster upset, -600 Jeff Curran lost to Bryan Goldsby at Bellator 14 in a non-tournament bout. And coming in third was Mike Brown’s defeat to Manny Gamburyan as a -450 favorite at WEC48, a loss with odds that would have topped the list in most other months. While not with odds quite as steep, two significant upsets on the Strikeforce on CBS card took place, with -355 favorite Dan Henderson losing in his bid to unseat Jake Shields from the middleweight throne, and -210 Gegard Mousasi succumbing to the stifling wrestling game of the less experienced “King Mo” Lawal. Full results below.
MMA upset rankings for recent months:
- March 2010
- February 2010
- January 2010
| Rank | Odds | Loser Name | Odds | Winner Name | Result | Fight Date | Event Name |
|---|---|---|---|---|---|---|---|
| 1 | -900 | BJ Penn | +588 | Frankie Edgar | Decision | 4/10 | UFC 112 |
| 2 | -600 | Jeff Curran | +425 | Bryan Goldsby | Decision | 4/15 | Bellator 14 |
| 3 | -453 | Mike Thomas Brown | +393 | Manny Gamburyan | Round 1 KO/TKO | 4/24 | WEC 48 |
| 4 | -355 | Dan Henderson | +314 | Jake Shields | Decision | 4/17 | Strikeforce: Nashville |
| 5 | -300 | Matt Veach | +240 | Paul Kelly | Round 2 Submission | 4/10 | UFC 112 |
| 6 | -255 | Brandon Visher | +222 | Tyler Toner | Round 1 KO/TKO | 4/24 | WEC 48 |
| 7 | -250 | Jacob McClintock | +195 | Ryan Thomas | Round 1 KO/TKO | 4/22 | Bellator 15 |
| 8 | -245 | Mike Ricci | +195 | Pat Curran | Round 1 KO/TKO | 4/15 | Bellator 14 |
| 9 | -212 | Gegard Mousasi | +181 | Muhammed Lawal | Decision | 4/17 | Strikeforce: Nashville |
| 10 | -190 | Brett Cooper | +160 | Steve Carl | Decision | 4/22 | Bellator 15 |
| 11 | -160 | Brad Blackburn | +144 | DaMarques Johnson | Round 3 KO/TKO | 4/10 | UFC 112 |
| 12 | -156 | Terry Etim | +130 | Rafael Dos Anjos | Round 2 Submission | 4/10 | UFC 112 |
| 13 | -151 | Demetrius Johnson | +128 | Brad Pickett | Decision | 4/24 | WEC 48 |
| 14 | -130 | Donald Cerrone | +110 | Benson Henderson | Round 1 Submission | 4/24 | WEC 48 |
| 15 | -115 | Anthony Njokuani | -101 | Shane Roller | Round 1 Submission | 4/24 | WEC 48 |
| 16 | -112 | Chan Sung Jung | -108 | Leonard Garcia | Decision | 4/24 | WEC 48 |




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