

Loss
KO/TKO (R1 · 1:32)UFC 96: Jackson vs Jardine
UFC round data: 3 bouts · through 2009-03-07

Heuristic scores · 0–100
3 UFC bouts · 81 division peers
Data through 2009-03-07
0 bouts reaching round 3
Fight IQ = 40% striking-accuracy percentile + 30% striking-defense percentile + 30% takedown-defense percentile within the division.
Requires 3 UFC bouts, 15 measured minutes, at least 10 division peers, 100 strike attempts, 100 opponent strike attempts and 10 opponent takedown attempts.
Cardio = 100 × the median late/early significant-strike attempt rate ratio, capped at 100. Compare rounds 3+ with rounds 1–2 within each bout. Requires 3 eligible bouts with at least 60 late-round seconds each. 100 means maintained or higher late pace.
Fight IQ summarizes accuracy and defense; cardio summarizes retained pace. Style, opponents and grappling affect both. These scores do not measure intelligence, physical fitness or win probability.
Formula v1
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Jason Day has a professional MMA record of 19-12-0 (wins-losses-draws).
Jason Day's UFC record is 1-2-0 (wins-losses-draws), and 18-10-0 in professional fights outside the UFC.
Jason Day does not have a fight currently scheduled.
Jason Day is 45 years old, born May 19, 1981.
Jason Day stands 183 cm (6'0") tall, with a 183 cm (72") reach.
Jason Day is from Canada.
Jason Day is known as "Dooms".
Jason Day last fought on March 7, 2009 at UFC 96: Jackson vs Jardine, losing to Kendall Grove by KO/TKO in round 1.
Jason Day (Canada), a middleweight, went 19-12 as a pro and 1-2 in the UFC (18-10 outside it). He debuted at UFC 83: Serra vs St-Pierre 2 on April 19, 2008; his only UFC win came by KO/TKO; he lost his last two UFC bouts. His reach of 72 inches is 3.5 inches shorter than the middleweight average (75.5 inches). Last fight: KO/TKO loss to Kendall Grove, then 4-2 in the UFC, on March 7, 2009 (UFC 96: Jackson vs Jardine).
Built from AgentMMA's UFC database (as of November 7, 2026); not AI-written.
Computed by AgentMMA from the round-by-round stats of 3 UFC bouts (9:12 of fight time).
| Stat | Day | Division average | Percentile |
|---|---|---|---|
| Significant strikes landed per minute | 4.642 in 9:12 | 4 | —* |
| Significant strike accuracy | 52.5%42 of 80 landed | 49.8% | —* |
| Significant strikes absorbed per minute | 4.138 in 9:12 | 3.8 | —* |
| Significant strike defense | 50%38 of 76 avoided | 50.4% | —* |
| Takedowns per 15 minutes | 00 in 9:12 | 1.5 | —* |
| Takedown accuracy | —‡ | 40.4% | — |
| Takedown defense | 0%0 of 3 stopped | 63.4% | —* |
| Submission attempts per 15 minutes | 00 in 9:12 | 0.5 | —* |
| Knockdowns per 15 minutes | 00 in 9:12 | 0.5 | —* |
| Control time | 0.5%0:03 of 9:12 | 19.5% | —* |
| Average fight time | 3:043 bouts | 9:59 | —* |
| Height | 183 cm72″ | 186 cm73.1″ | |
| Reach | 183 cm72″ | 192 cm75.5″ |
UFC record: 1-2
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