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UFC Fight Night: Lopes vs. SilvaMiddleweightMain card
Kelvin GastelumWINNER
Kelvin
Gastelum
13-11UFC
33 yrsElo 1561
VS
Dustin Stoltzfus
Dustin
Stoltzfus
2-7UFC
33 yrsElo 1443
Final: Kelvin Gastelum by U-DEC
Who wins
Claude
72%
Gastelum
GPT
78%
Gastelum
Elo
66%
Gastelum
1561 vs 1443
Tale of the tapeUFC averages
5'9" Height 6'0"
71" Reach 75"
Southpaw Stance Orthodox
3.65 Landed / min 3.30
3.52 Absorbed / minlower better 3.23
42% Strike accuracy 45%
57% Strike defense 47%
1.04 Takedowns / 15 2.08
35% TD accuracy 37%
60% TD defense 46%
0.1 Subs / 15 1.1
How it ends
Claude: KO/TKO 28%Claude: Submission 12%Claude: Decision 60%
60%Decision
Claude calls Decision
KO/TKO 28%Submission 12%Decision 60%
GPT: KO/TKO 18%GPT: Submission 7%GPT: Decision 75%
75%Decision
GPT calls Decision
KO/TKO 18%Submission 7%Decision 75%
Formnewest first
Kelvin Gastelum98 days out
L
Joe Pyfer
U-DEC · 2025-06-07
W
Daniel Rodriguez
U-DEC · 2024-01-20
L
Sean Brady
SUB · 2023-12-02
W
Chris Curtis
U-DEC · 2023-04-08
L
Jared Cannonier
U-DEC · 2021-08-21
Dustin Stoltzfus119 days out
L
Nursulton Ruziboev
U-DEC · 2025-05-17
L
win
· 2024-11-02
L
Brunno Ferreira
KO/TKO · 2024-01-06
W
Punahele Soriano
SUB · 2023-12-02
L
Abus Magomedov
KO/TKO · 2022-09-03
Why
Claude
Kelvin Gastelum
72% · Decision
  • Stoltzfus has absorbed significant damage in recent fights (3 losses in last 4, 2 by KO/TKO)
  • Gastelum's 10% striking defense advantage and proven chin at middleweight
  • Southpaw vs orthodox matchup favors Gastelum's counter-striking style
  • Gastelum's 3-fight decision win streak shows improved fight IQ and pacing
Write-up

Gastelum's superior striking defense (57% vs 47%) and recent form momentum give him a clear edge. Stoltzfus is on a 3-fight losing streak with 2 KO/TKO losses, indicating declining durability. Gastelum's southpaw stance creates awkward angles against Stoltzfus's orthodox approach, and his experience advantage at the elite level should allow him to control distance despite the 4-inch reach disadvantage.

GPT
Kelvin Gastelum
78% · Decision
  • Superior striking defense and experience against elite competition
  • Stoltzfus's low takedown defense (46%) likely struggles to hold Gastelum down
  • Gastelum's proven durability and effective strike differential
Write-up

Gastelum holds a significant edge in striking defense (57% vs 47%) and has consistently faced higher-tier opposition. While Stoltzfus averages more takedowns and submissions, his takedown accuracy and defense are both lower than Gastelum's historical defensive metrics. Gastelum's durability, higher win rate, and ability to keep fights standing should allow him to control the tempo and outpoint Stoltzfus over three rounds.