Ryo Chonan
Loss
Split decisionUFC 97: Redemption
- Pro record 22-13-0
- UFC record 1-3-0
- Outside the UFC 21-10-0
- 2 UFC losses in a row
Fighter Details
UFC statistics
UFC round data: 4 bouts · through 2009-04-18
UFC Record Breakdown
Performance Breakdown
Heuristic ratings
Heuristic scores · 0–100
4 UFC bouts · 80 division peers
Data through 2009-04-18
4 bouts reaching round 3
Data through 2009-04-18
How these scores are calculated
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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More NewsFrequently asked questions
What is Ryo Chonan's professional MMA record?
Ryo Chonan has a professional MMA record of 22-13-0 (wins-losses-draws).
What is Ryo Chonan's UFC record?
Ryo Chonan's UFC record is 1-3-0 (wins-losses-draws), and 21-10-0 in professional fights outside the UFC.
Who does Ryo Chonan fight next?
Ryo Chonan does not have a fight currently scheduled.
How old is Ryo Chonan?
Ryo Chonan is 50 years old, born October 8, 1976.
How tall is Ryo Chonan?
Ryo Chonan stands 175 cm (5'9") tall, with a 178 cm (70") reach.
Where is Ryo Chonan from?
Ryo Chonan is from Japan.
What is Ryo Chonan's nickname?
Ryo Chonan is known as "Piranah".
When was Ryo Chonan's last fight?
Ryo Chonan last fought on April 18, 2009 at UFC 97: Redemption, losing to TJ Grant by split decision.
What were the scorecards for Ryo Chonan vs TJ Grant?
Ryo Chonan lost to TJ Grant by split decision at UFC 97: Redemption on April 18, 2009. The official scorecards were Nelson Hamilton 30-27, Cecil Peoples 28-29, Claude Paquette 29-28 (winner's score first).
What were the scorecards for Ryo Chonan vs Brad Blackburn?
Ryo Chonan lost to Brad Blackburn by unanimous decision at UFC 92: The Ultimate 2008 on December 27, 2008. All three judges (Patricia Morse-Jarman, Marcos Rosales, Jeff Mullen) scored the fight 29-28 in Brad Blackburn's favor.
Ryo Chonan scouting report
Ryo Chonan (Japan), a welterweight, went 22-13 as a pro and 1-3 in the UFC (21-10 outside it). He debuted at UFC 78: Validation on November 17, 2007; his only UFC win came by decision; he lost his last two UFC bouts. His reach of 70 inches is 4.3 inches shorter than the welterweight average (74.3 inches). Last fight: split-decision loss to TJ Grant, then making his UFC debut, on April 18, 2009 (UFC 97: Redemption).
Built from AgentMMA's UFC database (as of November 7, 2026); not AI-written.
Ryo Chonan vs the welterweight average
Computed by AgentMMA from the round-by-round stats of 4 UFC bouts (1:00:00 of fight time).
| Stat | Chonan | Division average | Percentile |
|---|---|---|---|
| Significant strikes landed per minute | 2.5152 in 1:00:00 | 4.3 | 9 |
| Significant strike accuracy | 37.9%152 of 401 landed | 48.3% | 3 |
| Significant strikes absorbed per minute | 3180 in 1:00:00 | 3.9 | 24 |
| Significant strike defense | 65.4%340 of 520 avoided | 54.1% | 99 |
| Takedowns per 15 minutes | 0.52 in 1:00:00 | 1.4 | 29 |
| Takedown accuracy | 50%2 of 4 landed | 35.2% | —† |
| Takedown defense | 40%8 of 20 stopped | 66.6% | 1 |
| Submission attempts per 15 minutes | 00 in 1:00:00 | 0.4 | 13 |
| Knockdowns per 15 minutes | 00 in 1:00:00 | 0.5 | 8 |
| Control time | 31.1%18:39 of 1:00:00 | 19.1% | 83 |
| Average fight time | 15:004 bouts | 10:53 | 93 |
| Height | 175 cm69″ | 183 cm72.1″ | |
| Reach | 178 cm70″ | 189 cm74.3″ |
- Division average and percentile: 80 active welterweight fighters with a UFC bout in the last 3 years, at least 3 UFC bouts and 15 minutes of UFC fight time.
- Percentile: the share of those fighters whose value is lower (ties count half). For every stat, a higher percentile means a higher number.
- †No percentile: fewer than 50 significant-strike or 10 takedown attempts behind this rate.
Related MMA Lab pages
UFC fight record
UFC record: 1-3
Every UFC bout, newest first. Open a bout for the full result, judges' scorecards and round-by-round stats.
- ResultMatchupMethodEventDate
- LUFC record after this bout: 1-3-0Pro record now: 21-5-0UFC record entering: 0-0-0DECUFC 97: RedemptionApr 18, 2009Result & stats
- LUFC record after this bout: 1-2-0Pro record now: 18-13-1 (1 NC)UFC record entering: 1-0-0DECUFC 92: The Ultimate 2008Dec 27, 2008Result & stats
- WUFC record after this bout: 1-1-0Pro record now: 21-11-0UFC record entering: 2-2-0DECUFC 88: BreakthroughSep 6, 2008Result & stats
- LUFC record after this bout: 0-1-0Pro record now: 24-11-0 (1 NC)UFC record entering: 7-2-0DECUFC 78: ValidationNov 17, 2007Result & stats