UFC Fight Night: Jung vs. Ige
Las Vegas, USA
19 Jun 2021
Welterweight
VS
59%
Williams
41%
Semelsberger
Win Probability
Decision
Round 3 · 5:00
Khaos
Khaos Williams
"The OxFighter"
16 – 5
6'0"77" reachOrthodox32 yrsStriker
CFR 64
Matthew
Matthew Semelsberger
"Semi The Jedi"
11 – 8
Well-Rounded4-fight slide33 yrsSwitch75" reach6'1"
CFR 45

Combatrics Intelligence

Data-driven breakdown · fighter metrics

Edge: Williams

This is a genuine toss-up — Williams at 59% vs Semelsberger at 41% (CFR ratings). One of the hardest fights to call on the card.

Key angles

The CFR gap of 19 points suggests a clear performance difference on paper.

Striking split: Williams throws more volume but Semelsberger connects at a higher rate — quality vs quantity.

Risk flags

Semelsberger has a chin rating of 48 — a potential KO vulnerability.

Williams
Semelsberger
Physical Matchup
Height · Reach · Age · Stance
6'0"
Height
+6'1"
77"+
Reach
75"
32+
Age
33
Orthodox
Stance
Switch
Williams
Semelsberger
Composite Fighter Rating
Overall score combining performance, win quality, momentum & durability
63.7
45.1
54.6
Performance Avg
41.6
49
Quality of Victory
39
87
Momentum Score
84
Williams
Semelsberger
Striking
Significant strikes per minute & accuracy
2.0
1.2
40%
Strike Accuracy
43%
8.4
Striking Style Score (/10)
4.9
5 KOs
KO Finishes
2 KOs
Strike targetStrike target
19
Head
16
10
Body
3
7
Leg
4
RangeRange
36Distance23
0Clinch0
0Ground0
Williams
Semelsberger
Grappling
Takedowns, submissions & wrestling
0.7
/ 10
1.4
/ 10
0.5
Wrestling Style (/10)
1.0
0.0
Submission Style (/10)
0.0
0
Submission wins
0
Per-fight takedown stats will populate after live card results are scraped
Williams
Semelsberger
Durability / Chin
Resilience against knockouts and stoppages
82
48
Never stopped
Verdict
KO risk
0
KO/TKO Losses
2
1
Sub Losses
0
—
KO round context
Avg R2.0 stoppage
—
Last KO loss
Most recent fight
—
Strikes absorbed / min
—
11/21 fights
Chin rating based on
11/19 fights
Williams
Semelsberger
Form & Momentum
Recent fight performance — most recent weighted 30%
87
84
Current form
4-fight 📉 slide
W · KO · R1
L · Dec · R3
L · Sub · R2
W · KO · R1
W · Dec · R3
Last 5
L · KO · R1
L · Dec · R3
L · KO · R3
L · Dec · R3
W · Dec · R3
Williams
Semelsberger
Finish Rate
Percentage of wins by KO/TKO or Submission
71%
40%
5
KO / TKO Wins
2
0
Submission Wins
0
2
Decision Wins
3

Style Fingerprint

Combatrics radar — 6 fighting dimensions scored 0–10

Williams
Semelsberger
Striking8.4 / 4.9Volume3.6 / 5.7Grappling0.7 / 1.4Wrestling0.5 / 1.0Submission0.0 / 0.0Pressure6.9 / 4.2
Fighter 1
Fighter 2
8.4
Striking
KO power & stand-up volume
4.9
0.7
Grappling
Ground control & clinch
1.4
0.5
Wrestling
Takedown threat & defence
1.0
0.0
Submission
Submission attack frequency
0.0
6.9
Pressure
Clinch/ground work rate
4.2
3.6
Volume
Decision-pace fighting
5.7
Williams
Strike Zones
Semelsberger
Williams
Attacking
19HEAD10BODY7LEGS36 landed
Absorbing
16HEAD3BODY4LEGS23 absorbed
Semelsberger
Attacking
16HEAD3BODY4LEGS23 landed
Absorbing
19HEAD10BODY7LEGS36 absorbed
Targeting Overlap
🎯Williams targets the head (53% of attacks) — Semelsberger absorbs 53% of strikes there
🎯Semelsberger targets the head (70% of attacks) — Williams absorbs 70% of strikes there

Round by Round

This fight · per-round breakdown

Williams
RND
Semelsberger
0/0R00/0

Williams · QOF Timeline

Avg: 5.5
0105.0W6.5W6.1L5.0W6.1W6.4L4.5W5.8W4.5L5.7L5.4W2020-022021-062023-052025-062026-05
WinLossTrend

Semelsberger · QOF Timeline

Avg: 5.3
0104.5W5.0W6.9L5.0W4.5W5.5L5.5W6.9L5.8L5.5L2.7L2020-082021-092022-122024-012024-11
WinLossTrend

Williams · Last 5

W · KO · R1
Nikolay VeretennikovRating 5.4
KO/TKO
UFC Fight Night: Allen vs. Costa · 2026-05
L · Dec · R3
Andreas GustafssonRating 5.7
Decision
UFC 316: Dvalishvili vs. O'Malley 2 · 2025-06
L · Sub · R2
Gabriel BonfimRating 4.5
Submission
UFC Fight Night: Cannonier vs. Rodrigues · 2025-02
W · KO · R1
Carlston HarrisRating 5.8
KO/TKO
UFC Fight Night: Barboza vs. Murphy · 2024-05
W · Dec · R3
Rolando BedoyaRating 4.5
Decision
UFC 288: Sterling vs. Cejudo · 2023-05

Semelsberger · Last 5

L · KO · R1
Charles RadtkeRating 2.7
KO/TKO
UFC Fight Night: Magny vs. Prates · 2024-11
L · Dec · R3
Preston ParsonsRating 5.5
Decision
UFC Fight Night: Ankalaev vs. Walker 2 · 2024-01
L · KO · R3
Uros MedicRating 5.8
KO/TKO
UFC 291: Poirier vs. Gaethje 2 · 2023-07
L · Dec · R3
Jeremiah WellsRating 6.9
Decision
UFC Fight Night: Pavlovich vs. Blaydes · 2023-04
W · Dec · R3
Jake MatthewsRating 5.5
Decision
UFC Fight Night: Cannonier vs. Strickland · 2022-12

News & Media

Khaos Williams · Matthew Semelsberger
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