Sean O'Connell (21-10, 15) was born in Cottage Grove, Minnesota, U.S. on September 2, 1983. At the age of 23 years on April 13, 2007, he made his professional MMA debut against Jason Delrio, winning the fight via 1st-round KO.
On June 28, 2014, 30-year old Sean O'Connell made his UFC debut on his 21st professional MMA fight at UFC Fight Night: Te Huna vs. Marquardt against a 28-year old Gian Villante but lost the fight via split decision.
O'Connell's last fight was a 3rd-round TKO win against Vinny Magalhães at PFL 11 at age 35 on December 31, 2018. He retired with a 3-fight winning streak.
He has fought six times in the UFC, and has a record of 2 wins and 4 losses in the promotion.
Some of Sean O'Connell's best fights have been against Anthony Perosh, Vinny Magalhães, Smealinho Rama, Matt Van Buren, Ronny Markes and Daniel Spohn. For details about these fights refer to "Best fights of Sean O'Connell".
O'Connell has 10 losses on his MMA record. For details about these losses refer to "Sean O'Connell Losses".
| # | Date | Opponent | Promotion | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|---|
31  | Dec 31, 2018 35 years, 3 months 21-10 (15) | 34 years, 5 months 18-9 (17) | PFL | LHW | 3 | TKO | WIN Corner stoppage |
30  | Oct 13, 2018 35 years, 1 months 20-10 (14) | 26 years, 5 months 11-4-1 (10) | PFL | LHW | 1 | KO | WIN Punches |
29  | Oct 13, 2018 35 years, 1 months 19-10 (13) | 34 years 18-5 (12) | PFL | LHW | 2 | MD | WIN |
28  | Aug 30, 2018 34 years, 11 months 18-10 (13) | 38 years, 8 months 17-2 (16) | PFL | LHW | 1 | TKO | LOSS Spinning back kick and punches |
27  | Jun 21, 2018 34 years, 9 months 18-9 (13) | 30 years, 2 months 18-5 (11) | PFL | LHW | 2 | TKO | WIN Punches |
26  | Dec 9, 2016 33 years, 3 months 17-9 (12) | 27 years, 2 months 8-2 (3) | UFC | LHW | 2 | TKO | LOSS Punches |
25  | Jun 18, 2016 32 years, 9 months 17-8 (12) | 34 years, 10 months 11-2 (10) | UFC | LHW | 3 | UD | LOSS |
24  | Jan 17, 2016 32 years, 4 months 17-7 (12) | 32 years, 5 months 10-4 (8) | UFC | LHW | 1 | KO | LOSS Punches |
23  | May 10, 2015 31 years, 8 months 17-6 (12) | 42 years, 7 months 15-8 (15) | UFC | LHW | 1 | TKO | WIN Punches |
22 | Jan 18, 2015 31 years, 4 months 16-6 (11) | Matt Van Buren | UFC | LHW | 3 | TKO | WIN Punches |
21  | Jun 28, 2014 30 years, 9 months 15-6 (10) | 28 years, 10 months 11-5 (9) | UFC | LHW | 3 | SD | LOSS |
20  | Apr 16, 2014 30 years, 7 months 15-5 (10) | 32 years, 4 months 18-3 (9) | TUF | LHW | 1 | KO | LOSS Punches |
19 | Jan 17, 2014 30 years, 4 months 15-4 (10) | Markhaile Wedderburn | LHW | 1 | SUB | WIN Rear-naked choke | |
18  | Sep 28, 2013 30 years 14-4 (9) | 42 years, 3 months 18-14-1 (8) | LHW | 3 | UD | WIN | |
17 | Nov 16, 2012 29 years, 2 months 13-4 (9) | Chris Guillen | LHW | 3 | TKO | WIN Punches | |
16 | May 4, 2012 28 years, 8 months 12-4 (8) | Kip Ramos | LHW | 1 | TKO | WIN Punches | |
15 | Feb 24, 2012 28 years, 5 months 11-4 (7) | Trevor Carlson | 3 | UD | WIN | ||
14 | Jun 10, 2011 27 years, 9 months 10-4 (7) | Ben Fuimaono | 1 | TKO | WIN Punches | ||
13 | Nov 12, 2010 27 years, 2 months 9-4 (6) | Joseph Henle | 2 | SUB | LOSS Rear-naked choke | ||
12 | Jul 24, 2010 26 years, 10 months 9-3 (6) | Tony King | 3 | UD | WIN | ||
11 | Apr 3, 2010 26 years, 7 months 8-3 (6) | Dwight Parker | 2 | SUB | WIN Rear-naked choke | ||
10  | Feb 20, 2009 25 years, 5 months 7-3 (5) | 24 years, 1 months 9-0 (8) | 1 | SUB | LOSS Rear-naked choke | ||
9 | Nov 14, 2008 25 years, 2 months 7-2 (5) | Hank Weiss | 3 | UD | WIN | ||
8 | Apr 5, 2008 24 years, 7 months 6-2 (5) | Hank Weiss | 2 | KO | LOSS Punches | ||
7 | Dec 1, 2007 24 years, 2 months 6-1 (5) | Lima Pule | 2 | SUB | WIN Rear-naked choke | ||
6 | Nov 10, 2007 24 years, 2 months 5-1 (4) | Lima Pule | 3 | MD | WIN | ||
5 | Aug 18, 2007 23 years, 11 months 4-1 (4) | David Thomas | 2 | TKO | WIN Punches | ||
4 | Jul 14, 2007 23 years, 10 months 3-1 (3) | Kevin Hill | 1 | TKO | LOSS Punches | ||
3 | Jun 16, 2007 23 years, 9 months 3-0 (3) | Eric Wenzel | 1 | TKO | WIN Punches | ||
2 | May 19, 2007 23 years, 8 months 2-0 (2) | Kenneth Wirfs | 1 | KO | WIN Punches | ||
1 | Apr 13, 2007 23 years, 7 months 1-0 (1) | Jason Delrio | 1 | KO | WIN Punches |
