Ultimate Fighting Calendar
Welterweight3 rounds scheduled
WIN
Khaos Williams
The OxFighter
16-5-0
RESULT

Khaos Williams def. Matthew Semelsberger (Unanimous Decision)

Unanimous Decision · Round 3 · 5:00
Matthew Semelsberger
Semi The Jedi
11-8-0
Saturday, June 19, 2021
Meta Apex, Las Vegas, United States

Khaos Williams defeated Matthew Semelsberger by Unanimous Decision in round 3 (5:00) in the Welterweight bout of UFC Fight Night: The Korean Zombie vs Ige, held Saturday, June 19, 2021 at Meta Apex, Las Vegas.

Fight stats

Khaos Williams
Matthew Semelsberger
0
Knockdowns
0
91 of 260
Significant strikes
64 of 141
35%
Sig. strike accuracy
45%
114 of 286
Total strikes
68 of 146
0 of 0
Takedowns
0 of 0
-
Takedown accuracy
-
0
Submission attempts
0
0
Reversals
0
1:53
Control time
0:02
Significant strikes by target
44 of 195
Head
42 of 116
18 of 31
Body
9 of 11
29 of 34
Leg
13 of 14
87 of 254
Distance
62 of 137
4 of 6
Clinch
2 of 4
0 of 0
Ground
0 of 0

By round

ROUND 1
0
KD
0
26 of 83
Sig. str.
18 of 32
44 of 104
Total str.
20 of 35
0 of 0
Takedowns
0 of 0
0
Sub. att
0
1:21
Ctrl
0:00
ROUND 2
0
KD
0
29 of 80
Sig. str.
23 of 41
34 of 85
Total str.
25 of 43
0 of 0
Takedowns
0 of 0
0
Sub. att
0
0:30
Ctrl
0:02
ROUND 3
0
KD
0
36 of 97
Sig. str.
23 of 68
36 of 97
Total str.
23 of 68
0 of 0
Takedowns
0 of 0
0
Sub. att
0
0:02
Ctrl
0:00

Betting Odds

Khaos Williams
-184
65% implied win probability
Open: -169Best: -155
Matthew Semelsberger
+149
40% implied win probability
Open: +139Best: +205

Average moneyline across 12 sportsbooks.

SportsbookKhaos WilliamsMatthew Semelsberger
BetAnything-165+145
BetOnline-155+135
Bookmaker-160+127
Bovada-175+145
Cloudbet-185+142
DraftKings-245+170
FanDuel-280+205
MyBookie-170+140
Pinnacle-264+191
sportsbetio-169+126
sports-interaction-170+130
unibet-162+130

Odds are for information only. · Odds data: fightodds.io

Frequently asked questions

Who won Khaos Williams vs Matthew Semelsberger?

Khaos Williams defeated Matthew Semelsberger by Unanimous Decision in round 3 (5:00) in the Welterweight bout of UFC Fight Night: The Korean Zombie vs Ige, held Saturday, June 19, 2021 at Meta Apex, Las Vegas.

Referee
Herb Dean
Time format
3 Rnd (5-5-5)
Pre-fight comparison

Win probability

Khaos Williams 61%39% Matthew Semelsberger

What the model gave each fighter going into the fight, from their pre-fight UFCalendar Power Index ratings. See the full Power Index

Fight DNA

Head to head

UFCalendar's style model · Welterweight roster (258 fighters)

Khaos Williams
Knockout Artist
5 edges
Matthew Semelsberger
Striking Technician
6 edges
PowerSpeedPrecisionDurabilityEngineWrestlingGround

Radar scaled to this matchup · bars show the gap

Style shape

97Power95
84Speed96
73Precision89
90Durability88
89Engine65
50Wrestling87
49Ground81

Biggest edge Matthew Semelsberger, Takedowns +37

Attribute by attribute

Khaos Williams is on the left of every row, Matthew Semelsberger on the right.
97Punch power96
96Kick power93
71Punch speed98
96Kick speed93
73Accuracy89
50Takedowns87
50Ground striking86
48Submissions75
95Chin89
84Body strength87
89Cardio65

Attributes are rated 0-100 by UFCalendar's style model.

Tale of the Tape

16-5-0
Record
11-8-0
1737
Power Index rating
1657
1
Win Streak
0
32
Age
33
6'0"
183 cm
Height
6'1"
185 cm
77"
196 cm
Reach
75"
191 cm
Orthodox
Stance
Switch
Welterweight
Weight Class
Welterweight
United States
Nationality
United States

Striking Profile

4.97
SLpM
3.77
39%
Str. Acc.
42%
5.34
SApM
4.24
41%
Str. Def.
54%

Grappling Profile

0.00
TD Avg.
1.01
0%
TD Acc.
57%
51%
TD Def.
45%
0.00
Sub. Avg.
0.40

Recent form (last 5 fights)

Khaos Williams · 3-2
  • W
    UFC Fight Night: Allen vs Costa · May 16, 2026
    TKO · R1 · 3:31 · Welterweight
  • L
    UFC 316: Dvalishvili vs O'Malley 2 · Jun 7, 2025
    Unanimous Decision · R3 · 5:00 · Welterweight
  • L
    UFC Fight Night: Cannonier vs Rodrigues · Feb 15, 2025
    Submission · R2 · 4:58 · Welterweight
  • W
    UFC Fight Night: Barboza vs Murphy · May 18, 2024
    TKO · R1 · 1:30 · Welterweight
  • W
    UFC 288: Sterling vs Cejudo · May 6, 2023
    Split Decision · R3 · 5:00 · Welterweight
Matthew Semelsberger · 1-4
  • L
    UFC Fight Night: Magny vs Prates · Nov 9, 2024
    TKO · R1 · 0:51 · Welterweight
  • L
    UFC Fight Night: Ankalaev vs Walker 2 · Jan 13, 2024
    Unanimous Decision · R3 · 5:00 · Welterweight
  • L
    UFC 291: Poirier vs Gaethje 2 · Jul 29, 2023
    TKO · R3 · 2:36 · Welterweight
  • L
    UFC Fight Night: Pavlovich vs Blaydes · Apr 22, 2023
    Split Decision · R3 · 5:00 · Welterweight
  • W
    UFC Fight Night: Cannonier vs Strickland · Dec 17, 2022
    Unanimous Decision · R3 · 5:00 · Welterweight

Career Averages

Based on 11 fights · 11 fights
46.1
Avg sig. strikes
40.8
0.00
Avg takedowns
0.73
1:07
Avg control time
1:52
130
Career high strikes
118
0
Career high TDs
3

Strike Distribution

Khaos Williams
Strike target
Matthew Semelsberger
48%
Head
65%
20%
Body
17%
32%
Leg
18%
Khaos Williams
Strike position
Matthew Semelsberger
89%
Distance
80%
8%
Clinch
8%
4%
Ground
12%