Jay Hieron (23-7, 11) was born in Freeport, New York, U.S. on July 29, 1976. At the age of 26 years on July 19, 2003, he made his professional MMA debut against Keith Plate, winning the fight via 1st-round TKO.
On June 19, 2004, 27-year old Jay Hieron made his UFC debut on his 5th professional MMA fight at UFC 48 against a 23-year old Georges St-Pierre but lost the fight via TKO in the 1st round.
Hieron's last fight was a 1st-round KO loss to Tyron Woodley at UFC 156 at age 36 on February 28, 2013. He retired on a 2-fight losing streak.
He has fought four times in the UFC, and has a record of 4 losses in the promotion.
Some of Jay Hieron's best fights have been against Jason High, Anthony Lapsley, Ronald Jhun, Jesse Taylor, Joe Riggs, Brent Weedman and Rick Hawn.
Hieron has 7 losses on his MMA record.
| # | Date | Opponent | Promotion | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|---|
30 | Feb 28, 2013 36 years, 7 months 23-7 (11) | Tyron Woodley | UFC | WL | 1 | KO | LOSS Punches |
29  | Oct 5, 2012 36 years, 2 months 23-6 (11) | 27 years, 6 months 27-6 (22) | UFC | WL | 3 | UD | LOSS |
28 | Jul 13, 2012 35 years, 11 months 23-5 (11) | Romario da Silva | WL | 2 | CKO | WIN D'arce choke | |
27  | Oct 29, 2011 35 years, 3 months 22-5 (11) | 27 years, 3 months 8-0 (3) | Bellator | WL | 5 | SD | LOSS For Bellator World welterweight title |
26  | May 7, 2011 34 years, 9 months 22-4 (11) | 34 years, 7 months 11-0 (7) | Bellator | WL | 3 | SD | WIN |
25  | Apr 9, 2011 34 years, 8 months 21-4 (11) | 27 years, 1 months 18-5-1 (17) | Bellator | WL | 3 | UD | WIN |
24  | Mar 5, 2011 34 years, 7 months 20-4 (11) | 31 years 18-4 (15) | Bellator | WL | 1 | CKO | WIN Rear-naked choke |
23  | Jan 30, 2010 33 years, 6 months 19-4 (11) | 27 years, 4 months 32-10 (29) | Strikeforce | WL | 3 | UD | WIN |
22  | Aug 15, 2009 33 years 18-4 (11) | 26 years, 7 months 13-3 (10) | Strikeforce | WL | 3 | UD | WIN |
21  | Jan 24, 2009 32 years, 5 months 17-4 (11) | 27 years, 3 months 7-0 (6) | Affliction | WL | 1 | KO | WIN Punch |
20 | Oct 11, 2008 32 years, 2 months 16-4 (10) | Chris Kennedy | WL | 3 | UD | WIN | |
19 | Apr 4, 2008 31 years, 8 months 15-4 (10) | Mark Miller | WL | 1 | TKO | WIN Punches | |
18 | Dec 29, 2007 31 years, 5 months 14-4 (9) | Delson Heleno | WL | 1 | TKO | WIN Leg injury | |
17 | Nov 3, 2007 31 years, 3 months 13-4 (8) | Donnie Liles | WL | 3 | UD | WIN | |
16  | Jun 1, 2007 30 years, 10 months 12-4 (8) | 30 years 13-9-1 (10) | 1 | KO | LOSS Punches | ||
15 | Mar 17, 2007 30 years, 7 months 12-3 (8) | Donnie Liles | 1 | SUB | WIN Guillotine choke | ||
14 | Feb 2, 2007 30 years, 6 months 11-3 (7) | Victor Moreno | 1 | SUB | WIN Rear-naked choke | ||
13  | Nov 2, 2006 30 years, 3 months 10-3 (6) | 29 years, 4 months 11-4 (11) | 3 | UD | LOSS | ||
12 | Sep 9, 2006 30 years, 1 months 10-2 (6) | Amos Sotelo | 1 | SUB | WIN Guillotine choke | ||
11 | Jun 3, 2006 29 years, 10 months 9-2 (5) | 21 years, 2 months 12-0 (12) | 3 | UD | WIN | ||
10 | Mar 11, 2006 29 years, 7 months 8-2 (5) | Steve Schneider | 1 | TKO | WIN Punches | ||
9  | Oct 3, 2005 29 years, 2 months 7-2 (4) | 26 years, 2 months 13-5 (11) | UFC | 3 | TKO | LOSS Doctor stoppage | |
8  | Jul 30, 2005 29 years 7-1 (4) | 22 years 9-8 (9) | 3 | UD | WIN | ||
7 | May 19, 2005 28 years, 9 months 6-1 (4) | Richard Brass | WEC | 3 | UD | WIN | |
6  | Mar 19, 2005 28 years, 7 months 5-1 (4) | 34 years, 5 months 22-13-2 (16) | 1 | TKO | WIN Doctor stoppage | ||
5  | Jun 19, 2004 27 years, 10 months 4-1 (3) | 23 years, 1 months 6-0 (5) | UFC | 1 | TKO | LOSS Punches | |
4 | Apr 30, 2004 27 years, 9 months 4-0 (3) | Fabio Holanda | 3 | UD | WIN | ||
3 | Apr 24, 2004 27 years, 8 months 3-0 (3) | Fernando Munoz | 1 | TKO | WIN Submission to punches | ||
2 | Dec 14, 2003 27 years, 4 months 2-0 (2) | Jermaine Johnson | 1 | SUB | WIN Rear-naked choke | ||
1 | Jul 19, 2003 26 years, 11 months 1-0 (1) | Keith Plate | 1 | TKO | WIN Punches |
