Keiichiro Yamamiya
Loss
KO/TKO (R3 · 3:12)UFC 23: Ultimate Japan 2
- Pro record 45-35-10
- UFC record 0-1-0
- Outside the UFC 45-34-10
Fighter Details
UFC statistics
UFC round data: 1 bouts · through 1999-11-19
UFC Record Breakdown
Performance Breakdown
Heuristic ratings
Heuristic scores · 0–100
1 UFC bouts · 81 division peers
Data through 1999-11-19
1 bouts reaching round 3
Data through 1999-11-19
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 Keiichiro Yamamiya's professional MMA record?
Keiichiro Yamamiya has a professional MMA record of 45-35-10 (wins-losses-draws).
What is Keiichiro Yamamiya's UFC record?
Keiichiro Yamamiya's UFC record is 0-1-0 (wins-losses-draws), and 45-34-10 in professional fights outside the UFC.
Who does Keiichiro Yamamiya fight next?
Keiichiro Yamamiya does not have a fight currently scheduled.
How old is Keiichiro Yamamiya?
Keiichiro Yamamiya is 54 years old, born July 12, 1972.
How tall is Keiichiro Yamamiya?
Keiichiro Yamamiya stands 180 cm (5'11") tall.
Where is Keiichiro Yamamiya from?
Keiichiro Yamamiya is from Japan.
When was Keiichiro Yamamiya's last fight?
Keiichiro Yamamiya last fought on November 19, 1999 at UFC 23: Ultimate Japan 2, losing to Eugene Jackson by KO/TKO in round 3.
Keiichiro Yamamiya scouting report
Keiichiro Yamamiya (Japan), a middleweight, went 45-35-10 as a pro and 0-1 in the UFC (45-34-10 outside it). His height of 71 inches is 2.1 inches below the middleweight average (73.1 inches). Last fight: KO/TKO loss to Eugene Jackson, then 1-0 in the UFC, on November 19, 1999 (UFC 23: Ultimate Japan 2).
Built from AgentMMA's UFC database (as of November 7, 2026); not AI-written.
Keiichiro Yamamiya vs the middleweight average
Computed by AgentMMA from the round-by-round stats of 1 UFC bout (13:12 of fight time).
| Stat | Yamamiya | Division average | Percentile |
|---|---|---|---|
| Significant strikes landed per minute | 1.114 in 13:12 | 4 | —* |
| Significant strike accuracy | 24.1%14 of 58 landed | 49.8% | —* |
| Significant strikes absorbed per minute | 1.722 in 13:12 | 3.8 | —* |
| Significant strike defense | 79.1%83 of 105 avoided | 50.4% | —* |
| Takedowns per 15 minutes | 00 in 13:12 | 1.5 | —* |
| Takedown accuracy | —‡ | 40.4% | — |
| Takedown defense | 100%1 of 1 stopped | 63.4% | —* |
| Submission attempts per 15 minutes | 00 in 13:12 | 0.5 | —* |
| Knockdowns per 15 minutes | 00 in 13:12 | 0.5 | —* |
| Control time | 6.4%0:51 of 13:12 | 19.5% | —* |
| Average fight time | 13:121 bout | 9:59 | —* |
| Height | 180 cm71″ | 186 cm73.1″ |
- Division average and percentile: 81 active middleweight fighters with a UFC bout in the last 3 years, at least 3 UFC bouts and 15 minutes of UFC fight time.
- *No percentile: fewer than 3 UFC bouts or 15 minutes of UFC fight time.
- ‡No attempts, so there is no rate.
Related MMA Lab pages
UFC fight record
UFC record: 0-1
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: 0-1-0Pro record now: 15-9-1UFC record entering: 1-0-0KO/TKOR3 3:12UFC 23: Ultimate Japan 2Nov 19, 1999Result & stats