Jason Day (19-12, 17) was born in Lethbridge, Alberta, Canada on March 18, 1979. At the age of 23 years on July 27, 2002, he made his professional MMA debut against Jeremiah Cram, winning the fight via 2nd-round submission.
On April 19, 2008, 29-year old Jason Day made his UFC debut on his 25th professional MMA fight at UFC 83 against a 23-year old Alan Belcher, winning the fight in the 1st round via TKO.
Day's last fight was a 1st-round TKO loss to Francis Carmont at age 32 on June 17, 2011. He retired on a 3-fight losing streak.
He has fought three times in the UFC, and has a record of 1 win and 2 losses in the promotion.
Some of Jason Day's best fights have been against Alan Belcher and Jonathan Goulet.
Day has 12 losses on his MMA record.
| # | Date | Opponent | Promotion | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|---|
31  | Jun 17, 2011 32 years, 2 months 19-12 (17) | 29 years, 8 months 15-7 (13) | LHW | 1 | TKO | LOSS Punches | |
30 | Jul 24, 2010 31 years, 4 months 19-11 (17) | Ovince St. Preux | LHW | 1 | KO | LOSS Punches | |
29  | Feb 5, 2010 30 years, 10 months 19-10 (17) | 27 years, 1 months 13-5 (10) | MD | 1 | SUB | LOSS Rear-naked choke | |
28 | Jun 6, 2009 30 years, 2 months 19-9 (17) | Trevor Stewardson | MD | 2 | SUB | WIN Twister | |
27  | Mar 7, 2009 29 years, 11 months 18-9 (16) | 26 years, 3 months 9-5 (7) | UFC | MD | 1 | TKO | LOSS Punches and elbows |
26  | Jun 7, 2008 29 years, 2 months 18-8 (16) | 29 years, 3 months 15-1 (14) | UFC | MD | 1 | TKO | LOSS Punches |
25  | Apr 19, 2008 29 years, 1 months 18-7 (16) | 23 years, 11 months 12-4 (11) | UFC | MD | 1 | TKO | WIN Punches |
24  | Feb 1, 2008 28 years, 10 months 17-7 (15) | 28 years, 1 months 15-7 (12) | MD | 3 | SD | WIN | |
23 | Nov 30, 2007 28 years, 8 months 16-7 (15) | Ron Faircloth | MD | 2 | TKO | WIN Punches | |
22 | Oct 27, 2007 28 years, 7 months 15-7 (14) | Shawn Marchand | MD | 1 | TKO | WIN Punches | |
21  | Jun 23, 2007 28 years, 3 months 14-7 (13) | 27 years, 11 months 18-7 (15) | MD | 2 | SUB | WIN Armbar | |
20  | Jun 1, 2007 28 years, 2 months 13-7 (12) | 27 years, 3 months 9-4 (6) | MD | 1 | TKO | LOSS Punches | |
19 | Dec 30, 2006 27 years, 9 months 13-6 (12) | Scott Arnold | MD | 1 | SUB | WIN Armbar | |
18 | Nov 26, 2006 27 years, 8 months 12-6 (11) | Ricardeau Francois | KOTC | MD | 1 | SUB | WIN Guillotine choke |
17 | Nov 10, 2006 27 years, 7 months 11-6 (10) | Shawn Marchand | MD | 1 | TKO | WIN Punches | |
16 | Oct 21, 2006 27 years, 7 months 10-6 (9) | Marcus Hicks | MD | 1 | SUB | WIN | |
15 | Sep 30, 2006 27 years, 6 months 9-6 (8) | Shane Lightle | MD | 1 | SUB | WIN Rear-naked choke | |
14 | Sep 8, 2006 27 years, 5 months 8-6 (7) | Victor Valimaki | MD | 1 | SUB | LOSS Rear-naked choke | |
13 | Jun 17, 2006 27 years, 2 months 8-5 (7) | Linden Linklater | MD | 1 | TKO | WIN Punches | |
12 | May 27, 2006 27 years, 2 months 7-5 (6) | Chris Fontaine | MD | 1 | TKO | WIN Punches | |
11 | Apr 22, 2006 27 years, 1 months 6-5 (5) | MJ Rooney | KOTC | MD | 1 | TKO | WIN Punches |
10 | Mar 10, 2006 26 years, 11 months 5-5 (4) | Yoosef Penny | MD | 1 | SUB | WIN Rear-naked choke | |
9 | Dec 3, 2005 26 years, 8 months 4-5 (3) | Greg Rogalsky | KOTC | MD | 1 | SUB | WIN Guillotine choke |
8  | Apr 9, 2005 26 years 3-5 (2) | 27 years, 8 months 10-2 (10) | 1 | TKO | LOSS Punches | ||
7 | May 14, 2004 25 years, 1 months 3-4 (2) | Ulysses Castro | 1 | KO | LOSS Punches | ||
6 | Mar 20, 2004 25 years 3-3 (2) | Cameron Brown | 1 | SUB | LOSS Rear-naked choke | ||
5 | Nov 1, 2003 24 years, 7 months 3-2 (2) | 26 years, 2 months 1-0 (1) | 2 | UD | WIN | ||
4 | Oct 12, 2003 24 years, 6 months 2-2 (2) | Derek Tisdale | 1 | SUB | LOSS Armbar | ||
3 | May 10, 2003 24 years, 1 months 2-1 (2) | Rodrigo Munduruca | 1 | SUB | LOSS Rear-naked choke | ||
2 | Oct 5, 2002 23 years, 6 months 2-0 (2) | Jason Segal | 1 | TKO | WIN Punches | ||
1 | Jul 27, 2002 23 years, 4 months 1-0 (1) | Jeremiah Cram | 2 | SUB | WIN Guillotine choke |
