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
WS
Wanderlei Silva
"The Axe Murderer"
35 – 13
5'11"74" reachOrthodox49 yrsStriker
CFR 19
TP
Tony Petarra
2 – 3
Well-Rounded59 yrsOrthodox5'11"
CFR 2

Combatrics Intelligence

Data-driven breakdown · fighter metrics

Edge: Silva

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.

Silva
Petarra
Physical Matchup
Height · Reach · Age · Stance
5'11"
Height
5'11"
74"
Reach
49+
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
Significant strikes per minute & accuracy
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
Takedowns, submissions & wrestling
🥊
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
Striking8.8 / 0.0Volume2.4 / 0.0Grappling0.5 / 0.0Wrestling0.3 / 0.0Submission0.0 / 0.0Pressure6.8 / 0.0
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
Silva
Strike Zones
Petarra
Silva
Attacking
12HEAD13BODY0LEGS25 landed
Absorbing
3HEAD0BODY1LEGS4 absorbed
Petarra
Attacking
3HEAD0BODY1LEGS4 landed
Absorbing
12HEAD13BODY0LEGS25 absorbed
Targeting 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: 4.3
0101.5L5.0W5.5L5.5L5.0W1.5L5.5L4.5W1.5L5.2W5.5L5.1W1998-102007-122009-062011-112013-03
WinLossTrend

Silva · Last 5

W · KO · R2
Brian StannRating 5.1
KO/TKO
UFC on FUEL TV: Silva vs. Stann · 2013-03
L · Dec · R5
Rich FranklinRating 5.5
Decision
UFC 147: Silva vs Franklin 2 · 2012-06
W · KO · R2
Cung LeRating 5.2
KO/TKO
UFC 139: Shogun vs Henderson · 2011-11
L · KO · R1
Chris LebenRating 1.5
KO/TKO
UFC 132: Cruz vs Faber · 2011-07
W · Dec · R3
Michael BispingRating 4.5
Decision
UFC 110: Nogueira vs Velasquez · 2010-02

Petarra · Last 1

L · KO · R1
Wanderlei SilvaRating 1.5
KO/TKO
UFC 20: Battle for the Gold · 1999-05

News & Media

Wanderlei Silva · Tony Petarra
← Back to fights