UFC 99: The Comeback
Cologne, Germany
13 Jun 2009
Lightweight
VS
43%
Siver
57%
Hartt
Win Probability
Submission
Round 1 · 3:23
DS
Dennis Siver
23 – 11
5'6"70" reachOrthodox47 yrsWell-Rounded
CFR 14
DH
Dale Hartt
6 – 3
Knockout Artist47 yrsOrthodox69" reach5'10"
CFR 19

Combatrics Intelligence

Data-driven breakdown · fighter metrics

Edge: Hartt

This is a genuine toss-up — Siver at 43% vs Hartt at 57% (CFR ratings). One of the hardest fights to call on the card.

Key angles

Hartt has beaten significantly higher-quality opposition — a QoV edge of 18 points.

Siver has the striking edge in both volume and accuracy.

Risk flags

Siver's chin rating of 4 flags durability concerns based on KO history.

Siver
Hartt
Physical Matchup
Height · Reach · Age · Stance
5'6"
Height
+5'10"
70"+
Reach
69"
47
Age
47
Orthodox
Stance
Orthodox
Siver
Hartt
Composite Fighter Rating
Overall score combining performance, win quality, momentum & durability
14.3
19.1
46.1
Performance Avg
46.3
37
Quality of Victory
55
43
Momentum Score
52
Siver
Hartt
Striking
Significant strikes per minute & accuracy
1.5
0.6
34%
Strike Accuracy
33%
3.7
Striking Style Score (/10)
10.0
3 KOs
KO Finishes
1 KOs
Strike targetStrike target
4
Head
1
0
Body
0
4
Leg
4
RangeRange
6Distance5
0Clinch0
2Ground0
Siver
Hartt
Grappling
Takedowns, submissions & wrestling
—
—
0.1
Sub Attempts / fight
—
2.7
Grappling Style Score (/10)
0.0
1.9
Wrestling Style Score (/10)
0.0
0:00
Control Time (this fight)
0:00
0
Reversals
0
Siver
Hartt
Durability / Chin
Resilience against knockouts and stoppages
4
76
KO risk
Verdict
Never stopped
3
KO/TKO Losses
0
2
Sub Losses
2
Avg R2.0 stoppage
KO round context
—
2 fights ago
Last KO loss
—
—
Strikes absorbed / min
—
21/34 fights
Chin rating based on
3/9 fights
Siver
Hartt
Form & Momentum
Recent fight performance — most recent weighted 30%
43
52
W · Dec · R3
L · Dec · R3
L · KO · R2
W · Dec · R3
Upcoming
Last 5
L · Sub · R1
W · KO · R2
L · Sub · R1
Siver
Hartt
Finish Rate
Percentage of wins by KO/TKO or Submission
42%
100%
3
KO / TKO Wins
1
2
Submission Wins
0
7
Decision Wins
0

Style Fingerprint

Combatrics radar — 6 fighting dimensions scored 0–10

Siver
Hartt
Striking3.7 / 10.0Volume5.9 / 0.7Grappling2.7 / 0.0Wrestling1.9 / 0.0Submission1.7 / 0.0Pressure4.7 / 8.0
Fighter 1
Fighter 2
3.7
Striking
KO power & stand-up volume
10.0
2.7
Grappling
Ground control & clinch
0.0
1.9
Wrestling
Takedown threat & defence
0.0
1.7
Submission
Submission attack frequency
0.0
4.7
Pressure
Clinch/ground work rate
8.0
5.9
Volume
Decision-pace fighting
0.7
Siver
Strike Zones
Hartt
Siver
Attacking
4HEAD0BODY4LEGS8 landed
Absorbing
1HEAD0BODY4LEGS5 absorbed
Hartt
Attacking
1HEAD0BODY4LEGS5 landed
Absorbing
4HEAD0BODY4LEGS8 absorbed
Targeting Overlap
🎯Siver targets the head (50% of attacks) — Hartt absorbs 50% of strikes there
🎯Hartt targets the legs (80% of attacks) — Siver absorbs 80% of strikes there

Round by Round

This fight · per-round breakdown

Siver
RND
Hartt
0/0R00/0

Siver · QOF Timeline

Avg: 4.3
0101.5L5.2W5.5L1.5L5.5W5.0W5.2W5.5L4.5W5.0W4.5W4.5W1.5L4.5W4.5W4.5L4.5W4.1L5.5L4.5W2007-042009-062011-022013-072017-06
WinLossTrend

Hartt · QOF Timeline

Avg: 2.7
0101.5L5.2W1.5L2008-072008-122009-06
WinLossTrend

Siver · Last 5

W · Dec · R3
BJ PennRating 4.5
Decision
UFC Fight Night: Chiesa vs. Lee · 2017-06
L · Dec · R3
Tatsuya KawajiriRating 5.5
Decision
UFC Fight Night: Jedrzejczyk vs Penne · 2015-06
L · KO · R2
Conor McGregorRating 4.1
KO/TKO
UFC Fight Night: McGregor vs Siver · 2015-01
W · Dec · R3
Charles RosaRating 4.5
Decision
UFC Fight Night: Nelson vs Story · 2014-10
Upcoming
Manvel Gamburyan
UFC 168: Weidman vs Silva 2 · 2013-12

Hartt · Last 3

L · Sub · R1
Dennis SiverRating 1.5
Submission
UFC 99: The Comeback · 2009-06
W · KO · R2
Corey HillRating 5.2
KO/TKO
UFC Fight Night - Fight for the Troops · 2008-12
L · Sub · R1
Shannon GugertyRating 1.5
Submission
UFC: Silva vs Irvin · 2008-07

News & Media

Dennis Siver · Dale Hartt
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