METRICS GUIDE
Every stat on this page, explained
All stats are calculated from official fight data. Style scores are Combatrics proprietary ratings updated after every event.
UFC 23: Ultimate Japan 2
Chiba, Japan
19 Nov 1999
Middleweight
VS
88%
Jackson
12%
Yamamiya
Win Probability
KO/TKO
Round 3 · 3:12
★ Official Result
Eugene JacksonwinsKO/TKOR3 · 3:12
def. Keiichiro Yamamiya · UFC 23: Ultimate Japan 2
Fight Report
Pre-fight analysis · prediction vs result
Prediction vs Result
We predicted
Jackson
→
Actual result
Jackson wins
KO/TKO · R3
Pre-fight analysis
Jackson is a strong favourite at 88% win probability per the CFR ratings. The data points decisively in one direction.
Key angles
The CFR gap of 14 points suggests a clear performance difference on paper.
Jackson has beaten significantly higher-quality opposition — a QoV edge of 52 points.
Jackson has the striking edge in both volume and accuracy.
Risk flags
Jackson's chin rating of 42 flags durability concerns based on KO history.
This Fight — Statistics
Actual stats from this bout
JacksonYamamiya
0
Sig. Strikes
0
0.0
Strikes / min (SLpM)
0.0
—
Strike Accuracy
—
Jackson
Yamamiya
Physical Matchup
Height · Reach · Age · Stance
5'8"
Height
+5'11"
59
Age
+54
Orthodox
Stance
Southpaw
Jackson
Yamamiya
Composite Fighter Rating
Overall score combining performance, win quality, momentum & durability
16.5
2.2
48.0
Performance Avg
0.0
52
Quality of Victory
0
26
Momentum Score
0
Jackson
Yamamiya
Striking
Career averages · see This Fight stats above
0.6
0.3
34%
Strike Accuracy
25%
7.5
Striking Style Score (/10)
0.0
2 KOs
KO Finishes
0 KOs
Strike targetStrike target
7
Head
4
0
Body
0
0
Leg
0
RangeRange
2Distance4
5Clinch0
0Ground0
Jackson
Yamamiya
Grappling
Career averages · see This Fight stats above
2.7
/ 10
0.0
/ 10
1.9
Wrestling Style (/10)
0.0
3.3
Submission Style (/10)
0.0
1
Submission wins
0
Per-fight takedown stats will populate after live card results are scraped
Jackson
Yamamiya
Durability / Chin
Resilience against knockouts and stoppages
42
78
KO risk
Verdict
Moderate
1
KO/TKO Losses
1
3
Sub Losses
0
Avg R1.0 stoppage
KO round context
Avg R3.0 stoppage
Most recent fight
Last KO loss
Most recent fight
—
Strikes absorbed / min
—
7/24 fights
Chin rating based on
1/80 fights
Jackson
Yamamiya
Form & Momentum
Recent fight performance — most recent weighted 30%
26
0
L · KO · R1
W · Sub · R2
L · Sub · R1
L · Sub · R1
L · Sub · R1
Last 5
L · KO · R3
Jackson
Yamamiya
Finish Rate
Percentage of wins by KO/TKO or Submission
100%
0%
2
KO / TKO Wins
0
1
Submission Wins
0
0
Decision Wins
0
Style Fingerprint
Combatrics radar — 6 fighting dimensions scored 0–10
Jackson
Yamamiya
Fighter 1
Fighter 2
7.5
Striking
KO power & stand-up volume
0.0
2.7
Grappling
Ground control & clinch
0.0
1.9
Wrestling
Takedown threat & defence
0.0
3.3
Submission
Submission attack frequency
0.0
8.3
Pressure
Clinch/ground work rate
0.0
0.9
Volume
Decision-pace fighting
0.0
JacksonYamamiya
Strike Zones
Jackson
Attacking
7 landedAbsorbing
4 absorbedYamamiya
Attacking
4 landedAbsorbing
7 absorbedTargeting Overlap
🎯Jackson targets the head (100% of attacks) — Yamamiya absorbs 100% of strikes there
🎯Yamamiya targets the head (100% of attacks) — Jackson absorbs 100% of strikes there
Round by Round
This fight · per-round breakdown
Jackson
RND
Yamamiya
0/0R00/0
0/0R10/0
Jackson · QOF Timeline
Avg: 3.1WinLossTrend
Jackson · Last 5
L · KO · R1
Mark WeirRating 1.5KO/TKO
UFC 38: Brawl at the Hall · 2002-07
W · Sub · R2
Keith RockelRating 5.2Submission
UFC 35: Throwdown · 2002-01
L · Sub · R1
Ricardo AlmeidaRating 1.5Submission
UFC 33: Victory in Vegas · 2001-09
L · Sub · R1
Jeremy HornRating 1.5Submission
UFC 27: Ultimate Bad Boyz · 2000-09
L · Sub · R1
Sanae KikutaRating 1.5Submission
UFC 25: Ultimate Japan 3 · 2000-04
Yamamiya · Last 1
L · KO · R3
Eugene JacksonRating 4KO/TKO
UFC 23: Ultimate Japan 2 · 1999-11