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.
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
7.5
/ 10
0.0
/ 10
8.3
Style: Pressure
0.0
0.9
Style: Volume
0.0
2 KO wins
Finish Rate (strikes)
0 KO wins
Per-minute strike stats will populate after live card results are scraped
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 · Last 5
L · KO · R1
Mark WeirKO/TKO
UFC 38: Brawl at the Hall · 2002-07
W · Sub · R2
Keith RockelSubmission
UFC 35: Throwdown · 2002-01
L · Sub · R1
Ricardo AlmeidaSubmission
UFC 33: Victory in Vegas · 2001-09
L · Sub · R1
Jeremy HornSubmission
UFC 27: Ultimate Bad Boyz · 2000-09
L · Sub · R1
Sanae KikutaSubmission
UFC 25: Ultimate Japan 3 · 2000-04
Yamamiya · Last 1
L · KO · R3
Eugene JacksonKO/TKO
UFC 23: Ultimate Japan 2 · 1999-11