Middleweight
3 Rounds
Chris Leben won · KO/TKO R2
UFC Event·Saturday, June 19, 2010·Las Vegas, Nevada, USA, USA
Model Prediction: Aaron Simpson wins(54.8%)
Actual result: Chris Leben wins · Model version: ufc_v4_pure_xgboost_20260517_121258
Incorrect
Scouting Report
Auto-generated signals worth knowing before you read the deep stats below.
- Chris Leben enters on a 4-fight losing streak.
- Chris Leben is a KO finisher (67% of wins). Aaron Simpson has lost 50% of fights by KO.
- Aaron Simpson has 30pp better takedown defense — controls where the fight happens.
- Stance matchup historically favors Chris Leben (53.5%).
Tale of the Tape
Chris Leben
Red Corner
VS
Aaron Simpson
Blue Corner
+280
(26%)
Vegas Odds
-310
(76%)
45
Age
51
Southpaw
Stance
Orthodox
5'11"
Height
6'0"
185.42 cm
Reach
185.42 cm
Recent Form
Last 5 fights for each fighter — most recent on the right. Hover any result for the matchup.
Chris LebenL4 streak
oldest →latest
W
KOvs Wanderlei Silva · Jul 11L
KOvs Mark Munoz · Nov 11L
vs Derek Brunson · Dec 12L
vs Andrew Craig · Jul 13L
KOvs Uriah Hall · Dec 13Aaron Simpson
oldest →latest
W
vs Brad Tavares · Jul 11W
vs Eric Schafer · Oct 11L
vs Ronny Markes · Feb 12W
vs Kenny Robertson · Jul 12L
KOvs Mike Pierce · Oct 12Output & Defense Comparison
Rate-normalized career statistics. Bold side has the edge per metric.
Chris LebenMetricAaron Simpson
2.87
Strikes / min
3.60
2.87
Strikes absorbed / min
2.53
52%
Strike defense
56%
1.14
TDs / 15 min
3.78
53%
Takedown defense
83%
0.80
Sub atts / 15 min
0.50
Net striking (SLpM − SApM)
0.00Δ 1.07 — meaningful gap+1.07
Statistical Profile
Career averages and model features. Bigger shape = stronger across measured dimensions.
Chris LebenAaron Simpson
Recent Elo Trajectory
Last 10 fights for each fighter, aligned right (most recent on the right).
Chris Leben(8 fights)Aaron Simpson(8 fights)
Model Feature Differentials (Red − Blue)
RedElo RatingBlue
0.00.0
RedForm ScoreBlue
0.00.0
RedStriker ScoreBlue
0.00.0
RedGrappler ScoreBlue
0.00.0
Chris Leben
StanceSouthpaw
Height71.0"
Reach73.0"
Fights8
Aaron Simpson
StanceOrthodox
Height72.0"
Reach73.0"
Fights8