Welterweight
3 Rounds
Khaos Williams won · U-DEC R3
UFC Event·Saturday, June 19, 2021·Las Vegas, Nevada, USA, USA
Model Prediction: Matthew Semelsberger wins(52.0%)
Actual result: Khaos Williams wins · Model version: ufc_v4_pure_xgboost_20260517_121258
Incorrect
Scouting Report
Auto-generated signals worth knowing before you read the deep stats below.
- Matthew Semelsberger enters on a 4-fight losing streak.
- Matthew Semelsberger has 14pp better strike defense — meaningful gap.
- Stance matchup historically favors Matthew Semelsberger (52.9%).
Tale of the Tape
Khaos Williams
Red Corner
VS
Matthew Semelsberger
Blue Corner
-162
(62%)
Vegas Odds
+130
(43%)
32
Age
33
Orthodox
Stance
Switch
6'0"
Height
6'1"
195.58 cm
Reach
190.5 cm
Recent Form
Last 5 fights for each fighter — most recent on the right. Hover any result for the matchup.
Khaos WilliamsL2 streak
oldest →latest
L
vs Randy Brown · May 22W
vs Rolando Bedoya · May 23W
KOvs Carlston Harris · May 24L
SUBvs Gabriel Bonfim · Feb 25L
vs Andreas Gustafsson · Jun 25Matthew SemelsbergerL4 streak
oldest →latest
W
vs Jake Matthews · Dec 22L
vs Jeremiah Wells · Apr 23L
KOvs Uros Medic · Jul 23L
vs Preston Parsons · Jan 24L
KOvs Charles Radtke · Nov 24Output & Defense Comparison
Rate-normalized career statistics. Bold side has the edge per metric.
Khaos WilliamsMetricMatthew Semelsberger
4.94
Strikes / min
3.77
5.39
Strikes absorbed / min
4.24
40%
Strike defense
54%
0.00
TDs / 15 min
1.01
51%
Takedown defense
45%
0.00
Sub atts / 15 min
0.40
Net striking (SLpM − SApM)
-0.45evenly matched on net striking-0.47
Statistical Profile
Career averages and model features. Bigger shape = stronger across measured dimensions.
Khaos WilliamsMatthew Semelsberger
Recent Elo Trajectory
Last 10 fights for each fighter, aligned right (most recent on the right).
Khaos Williams(9 fights)Matthew Semelsberger(10 fights)
Model Feature Differentials (Red − Blue)
RedElo RatingBlue
-35.435.4
RedLayoff (days)Blue
+84.0-84.0
RedForm ScoreBlue
-1.01.0
RedStriker ScoreBlue
+0.6-0.6
RedGrappler ScoreBlue
-0.50.5
Khaos Williams
StanceOrthodox
Height72.0"
Reach77.0"
Fights9
Matthew Semelsberger
StanceSwitch
Height73.0"
Reach75.0"
Fights11