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UFC Fight Night: Oliveira vs. GamrotHeavyweightPrelims
Valter Walker
Valter
Walker
3-1UFC
27 yrsElo 1548*
VS
Mohammed Usman
Mohammed
Usman
4-2UFC
36 yrsElo 1526
Who wins
Claude
72%
Walker
GPT
67%
Walker
Elo
53%
Walker
1548 vs 1526
Tale of the tapeUFC averages
6'6" Height 6'2"
78" Reach 79"
Orthodox Stance Orthodox
1.86 Landed / min 3.41
3.16 Absorbed / minlower better 4.41
52% Strike accuracy 36%
42% Strike defense 50%
4.52 Takedowns / 15 0.69
75% TD accuracy 17%
0% TD defense 60%
0.8 Subs / 15 0.0
How it ends
Claude: KO/TKO 15%Claude: Submission 55%Claude: Decision 30%
55%Submission
Claude calls Submission, Round 2
KO/TKO 15%Submission 55%Decision 30%
GPT: KO/TKO 10%GPT: Submission 18%GPT: Decision 72%
72%Decision
GPT calls Decision
KO/TKO 10%Submission 18%Decision 72%
Formnewest first
Valter Walker91 days out
W
Kennedy Nzechukwu
SUB Heel Hook · 2025-07-12
W
Don'Tale Mayes
SUB Heel Hook · 2025-02-15
L
Lukasz Brzeski
U-DEC · 2024-04-06
W
Junior Tafa
SUB · 2024-03-09
Mohammed Usman112 days out
W
Hamdy Abdelwahab
U-DEC · 2025-06-21
L
Mick Parkin
U-DEC · 2024-03-23
L
Thomas Petersen
U-DEC · 2024-02-10
W
Jake Collier
U-DEC · 2023-09-23
W
Junior Tafa
U-DEC · 2023-04-22
Why
Claude
Valter Walker
72% · Submission
  • Walker averages 4.52 takedowns per fight with 75% accuracy vs Usman's 60% takedown defense
  • Both common opponents were submitted by Walker while Usman needed decisions
  • Walker's 4-inch height advantage and orthodox stance creates leverage for takedowns
  • Usman on 3-fight losing streak with declining defensive metrics
Write-up

Walker's elite grappling credentials (75% takedown accuracy, 4.52 takedowns per fight) present a nightmare matchup for Usman's poor takedown defense (60%). Walker has submitted both common opponents (Junior Tafa twice), while Usman went to decisions. The massive grappling differential and Walker's submission rate (0.8 per fight) against Usman's zero submission defense creates a clear path to victory.

GPT
Valter Walker
67% · Decision
  • Walker's elite takedown volume and accuracy
  • Usman's poor takedown defense and low grappling output
  • Usman's higher striking volume but low accuracy
Write-up

Walker holds a decisive grappling advantage with high takedown volume (4.52 per fight) and exceptional accuracy (75%), while Usman has shown vulnerability to takedowns (60% TD Def) and offers little on the ground. Usman is the higher-volume striker, but his low striking accuracy (36%) and negative differential (-1.0) are concerns, and Walker's path to victory is controlling the fight with wrestling and positional dominance. Usman's power and athleticism are threats, but Walker's wrestling edge and ability to neutralize Usman's offense are likely to dictate the pace.