JOHN BRZENK
Winner
3VS0
OLEG PETRENKO
CountryUS
Weight104 kg · 229 lb
Height181 cm · 5′11″
Biceps43 cm · 16.9″
Forearm41 cm · 16.1″
Wrist20 cm · 7.9″
Age62
Comparison
Fight arm: right
M.I.R.A. AIConcept · Beta
FIGHT PREDICTION
53%
Confidence
Low, high uncertainty
42%
Upset risk
Prediction is stable
M.I.R.A. AIConcept · Beta
FIGHT PREDICTION
Rounds and winners
#WinnerTechnique
1John Brzenk
2John BrzenkTop roll
3John BrzenkTop roll
JohnOleg
JohnOleg
JohnOleg
Grip win rate — right arm
Free
44%9 rds.
—
—Referee
—
85%13 rds.
—Free+Strap
44%27 rds.
13%8 rds.
+32%Ref+Strap
21%14 rds.
70%20 rds.
-49%Grip win rate — left arm
Free
—
50%2 rds.
—Referee
—
100%3 rds.
—Free+Strap
—
0%2 rds.
—Ref+Strap
—
100%3 rds.
—Current streak
L2
W1
—Career win rate
38.5%
70.0%
-31.5%Win rate (last 5 / 5)
20.0%
60.0%
-40.0%Form trend
▼ -18.5%
▼ -10.0%
—Longest win streak
2
4
-2Longest loss streak
2
1
—Avg. win margin
2.6
3.1
-0.5Sweep wins
3
5
-2Sweep losses
6
3
+3Close wins
1
1
0Close losses
1
0
+1Comeback wins
Opposition strength and quality wins — available after sign-inSign in →1
0
+1Finished fights
13
10
+3Career span (yrs)
4.8
3.9
+0.9Fights per year
2.7
2.5
+0.2Days since last fight
50
8
—Debut – last fight
2021–2026
2022–2026
—Longest layoff (days)
Win rate confidence interval and main-event statistics — available after sign-inSign in →532
364
—Percentile among athletes of the same gender: 100 = larger than all, 50 = average. Compared against 196 / 196 male athletes.
Height
41
39
+2Weight
55
55
0Biceps
34
59
-25Forearm
48
81
-33Wrist
43
56
-13Flash pins (total)
0
4
-4Right flash pins
0
3
-3Left flash pins
0
1
-1Wins by opponent fouls
1
5
-4Own fouls
5
24
-19Efficiency index (right)
19.8
40.1
-20.3Efficiency index (left)
0.0
24.6
-24.6JohnOleg
John (right)
John (left)
Oleg (right)
Oleg (left)
CountryUA
Weight104 kg · 229 lb
Height180 cm · 5′11″
Biceps47 cm · 18.5″
Forearm45 cm · 17.7″
Wrist21 cm · 8.3″
Age30
Head-to-head history
Direct meetings
East vs West 5RightJohn Brzenk
Common opponents
KYDYRGALI ONGARBAEV
John: 0 – 1
✕East vs West 4 (Right)
vs
Oleg: 1 – 0
King of the table 11 (Right)✓
DEVON LARRATT
John: 0 – 1
✕King of the table 2 (Right)
vs
Oleg: 0 – 1
East vs West 15 (Right)✕
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