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 20: Battle for the Gold
Birmingham, USA
7 May 1999
Middleweight
VS
90%
Silva
10%
Petarra
Win Probability
KO/TKO
Round 1 · 2:53
★ Official Result
Wanderlei SilvawinsKO/TKOR1 · 2:53
def. Tony Petarra · UFC 20: Battle for the Gold
Fight Report
Pre-fight analysis · prediction vs result
Prediction vs Result
We predicted
Silva
→
Actual result
Silva wins
KO/TKO · R1
Pre-fight analysis
Silva is a strong favourite at 90% win probability per the CFR ratings. The data points decisively in one direction.
Key angles
The CFR gap of 17 points suggests a clear performance difference on paper.
Silva has beaten significantly higher-quality opposition — a QoV edge of 53 points.
Petarra has the striking edge in both volume and accuracy.
Risk flags
Silva's chin rating of 26 flags durability concerns based on KO history.
This Fight — Statistics
Actual stats from this bout
SilvaPetarra
0
Sig. Strikes
0
0.0
Strikes / min (SLpM)
0.0
—
Strike Accuracy
—
Silva
Petarra
Physical Matchup
Height · Reach · Age · Stance
5'11"
Height
5'11"
74"
Reach
50+
Age
59
Orthodox
Stance
Orthodox
Silva
Petarra
Composite Fighter Rating
Overall score combining performance, win quality, momentum & durability
18.9
2.2
48.5
Performance Avg
0.0
53
Quality of Victory
0
72
Momentum Score
0
Silva
Petarra
Striking
Career averages · see This Fight stats above
1.2
1.6
37%
Strike Accuracy
80%
8.8
Striking Style Score (/10)
0.0
4 KOs
KO Finishes
0 KOs
Strike targetStrike target
12
Head
3
13
Body
0
0
Leg
1
RangeRange
0Distance0
24Clinch4
1Ground0
Silva
Petarra
Grappling
Career averages · see This Fight stats above
🥊
Pure striking matchup
Neither fighter has significant grappling in their history
0
Submission wins
0
Silva
Petarra
Durability / Chin
Resilience against knockouts and stoppages
26
78
KO risk
Verdict
Moderate
3
KO/TKO Losses
1
0
Sub Losses
0
Avg R1.0 stoppage
KO round context
Avg R1.0 stoppage
3 fights ago
Last KO loss
Most recent fight
—
Strikes absorbed / min
—
12/48 fights
Chin rating based on
1/5 fights
Silva
Petarra
Form & Momentum
Recent fight performance — most recent weighted 30%
72
0
W · KO · R2
L · Dec · R5
W · KO · R2
L · KO · R1
W · Dec · R3
Last 5
L · KO · R1
Silva
Petarra
Finish Rate
Percentage of wins by KO/TKO or Submission
80%
0%
4
KO / TKO Wins
0
0
Submission Wins
0
1
Decision Wins
0
Style Fingerprint
Combatrics radar — 6 fighting dimensions scored 0–10
Silva
Petarra
Fighter 1
Fighter 2
8.8
Striking
KO power & stand-up volume
0.0
0.5
Grappling
Ground control & clinch
0.0
0.3
Wrestling
Takedown threat & defence
0.0
0.0
Submission
Submission attack frequency
0.0
6.8
Pressure
Clinch/ground work rate
0.0
2.4
Volume
Decision-pace fighting
0.0
SilvaPetarra
Strike Zones
Silva
Attacking
25 landedAbsorbing
4 absorbedPetarra
Attacking
4 landedAbsorbing
25 absorbedTargeting Overlap
🎯Silva targets the body (52% of attacks) — Petarra absorbs 52% of strikes there
🎯Petarra targets the head (75% of attacks) — Silva absorbs 75% of strikes there
Round by Round
This fight · per-round breakdown
Silva
RND
Petarra
0/0R00/0
0/0R10/0
Silva · QOF Timeline
Avg: 4.3WinLossTrend
Silva · Last 5
W · KO · R2
Brian StannRating 5.1KO/TKO
UFC on FUEL TV: Silva vs. Stann · 2013-03
L · Dec · R5
Rich FranklinRating 5.5Decision
UFC 147: Silva vs Franklin 2 · 2012-06
W · KO · R2
Cung LeRating 5.2KO/TKO
UFC 139: Shogun vs Henderson · 2011-11
L · KO · R1
Chris LebenRating 1.5KO/TKO
UFC 132: Cruz vs Faber · 2011-07
W · Dec · R3
Michael BispingRating 4.5Decision
UFC 110: Nogueira vs Velasquez · 2010-02
Petarra · Last 1
L · KO · R1
Wanderlei SilvaRating 1.5KO/TKO
UFC 20: Battle for the Gold · 1999-05