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UFC 322: Della Maddalena vs. MakhachevMiddleweightPrelims
Bo NickalWINNER
Bo
Nickal
4-1UFC
29 yrsElo 1567
VS
Rodolfo Vieira
Rodolfo
Vieira
5-3UFC
36 yrsElo 1522
Final: Bo Nickal by KO/TKO Kick
Who wins
Claude
68%
Nickal
GPT
75%
Nickal
Elo
56%
Nickal
1567 vs 1522
Tale of the tapeUFC averages
6'1" Height 6'0"
76" Reach 73"
Southpaw Stance Orthodox
3.36 Landed / min 3.19
1.93 Absorbed / minlower better 4.60
61% Strike accuracy 54%
60% Strike defense 49%
3.12 Takedowns / 15 4.18
57% TD accuracy 30%
100% TD defense 100%
2.3 Subs / 15 1.6
How it ends
Claude: KO/TKO 45%Claude: Submission 35%Claude: Decision 20%
45%KO/TKO
Claude calls KO/TKO, Round 2
KO/TKO 45%Submission 35%Decision 20%
GPT: KO/TKO 5%GPT: Submission 65%GPT: Decision 30%
65%Submission
GPT calls Submission
KO/TKO 5%Submission 65%Decision 30%
Formnewest first
Bo Nickal196 days out
L
Reinier de Ridder
KO/TKO Knee · 2025-05-03
W
Paul Craig
· 2024-11-16
W
Cody Brundage
SUB · 2024-04-13
W
Val Woodburn
KO/TKO · 2023-07-08
W
Jamie Pickett
SUB · 2023-03-04
Rodolfo Vieira273 days out
L
Andre Petroski
U-DEC · 2025-02-15
W
Armen Petrosyan
SUB · 2024-02-10
W
Cody Brundage
SUB · 2023-04-29
L
Chris Curtis
U-DEC · 2022-06-25
W
Dustin Stoltzfus
SUB · 2021-07-17
Why
Claude
Bo Nickal
68% · KO/TKO
  • Nickal's 70% striking defense vs Vieira's 49% - major defensive gap in standup exchanges
  • 3-inch reach advantage for Nickal combined with southpaw vs orthodox stance creates distance management edge
  • Nickal averages 7.46 takedowns per 15 min with 50% accuracy vs Vieira's 4.18 at 30% accuracy
  • Vieira's -1.41 striking differential shows vulnerability when unable to implement grappling gameplan
Write-up

While both are elite grapplers, Nickal's striking defense (70%) significantly outclasses Vieira's (49%), and his 3-inch reach advantage will be crucial. Vieira's 30% takedown accuracy is concerning against Nickal's wrestling pedigree. The community 50-50 split undervalues Nickal's superior athleticism and more diverse skillset. Nickal's 7.5 submissions per 15 minutes shows finishing urgency, while his recent KO win demonstrates evolving striking.

GPT
Bo Nickal
75% · Submission
  • Nickal's superior wrestling pedigree and takedown volume (7.46 per fight)
  • Vieira's poor striking defense and negative strike differential
  • Nickal's high submission rate versus Vieira's tendency to tire in grappling-heavy bouts
Write-up

Nickal's elite wrestling, control, and submission output (7.5 subs per fight) are likely to neutralize Vieira's BJJ. Nickal's takedown volume and grappling athleticism should allow him to dictate positions. Vieira's striking defense (49%) and negative strike differential (-1.41) make him vulnerable if he cannot win scrambles. Vieira is dangerous on the mat but has struggled against strong wrestlers with submission awareness.