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UFC 330: Makhachev vs. Machado GarryWomen's StrawweightMain card
Mackenzie DernWINNER
Mackenzie
Dern
11-5UFC
33 yrsElo 1604
VS
Gillian Robertson
Gillian
Robertson
12-7UFC
31 yrsElo 1569
Final: Mackenzie Dern by U-DEC
Who wins
Claude
56%
Robertson
GPT
58%
Robertson
Elo
55%
Dern
1604 vs 1569
Tale of the tapeUFC averages
5'4" Height 5'5"
63" Reach 63"
Orthodox Stance Orthodox
3.47 Landed / min 2.71
3.93 Absorbed / minlower better 2.86
41% Strike accuracy 48%
51% Strike defense 56%
0.93 Takedowns / 15 2.76
18% TD accuracy 40%
37% TD defense 38%
1.1 Subs / 15 0.9
How it ends
Claude: KO/TKO 10%Claude: Submission 25%Claude: Decision 65%
65%Decision
Claude calls Decision
KO/TKO 10%Submission 25%Decision 65%
GPT: KO/TKO 10%GPT: Submission 35%GPT: Decision 55%
55%Decision
GPT calls Decision
KO/TKO 10%Submission 35%Decision 55%
Formnewest first
Mackenzie Dern294 days out
W
Virna Jandiroba
U-DEC · 2025-10-25
W
Amanda Ribas
SUB Armbar · 2025-01-11
W
Loopy Godinez
U-DEC · 2024-02-24
L
Amanda Lemos
U-DEC · 2024-02-17
L
Jessica Andrade
KO/TKO · 2023-11-11
Gillian Robertson469 days out
W
Marina Rodriguez
KO/TKO Punches · 2025-05-03
L
win
· 2024-11-09
W
Michelle Waterson-Gomez
U-DEC · 2024-01-27
W
Polyana Viana
KO/TKO · 2024-01-20
L
Tabatha Ricci
U-DEC · 2023-06-24
Why
Claude
Gillian Robertson
56% · Decision
  • Dern's 37% takedown defense vs Robertson's 2.76 TD/fight, Robertson dictates where this fight happens
  • Common opponent edge: Robertson beat Lemos (Mar 2026) and KO'd Rodriguez; Dern lost to Lemos by decision
  • Robertson's 5-fight win streak with improving striking (KO of Rodriguez) vs Dern's -0.46 strike differential and 51% defense
  • Robertson's grappling pedigree lets her play top position without submitting to Dern's guard, the Jandiroba fight showed Dern can be neutralized by patient control
Write-up

This is the clearest market-vs-model tension on the card. The market prices Dern at 64%, the public at 77%, but Elo has this nearly even (52/48), and the underlying data supports the Elo read. The common opponent thread is striking: Robertson knocked out Marina Rodriguez and just beat Amanda Lemos, the same Lemos who out-pointed Dern in 2024. Robertson rides a five-fight win streak with two KOs; her wrestling-first grappling (2.76 TD/fight at 40%) is the exact vector to exploit Dern's catastrophic 37% takedown defense and 18% takedown accuracy. Dern's entire threat is her ADCC-level guard, but Robertson is herself a submission grappler (0.9 sub avg) with the positional discipline to ride top position without diving into Dern's traps, she's spent her career playing exactly this game. Dern's recent wins (Jandiroba, Ribas) are legitimate, but Robertson is the fresher fighter (155-day layoff vs 295) with the more coherent gameplan path. Grappler-vs-grappler fights between sub specialists historically go to the better wrestler, and that's Robertson decisively. I disagree with the market by roughly 15 points: it's underweighting Robertson's top-control ceiling and overweighting Dern's name-brand jiu-jitsu.

GPT
Gillian Robertson
58% · Decision
  • Robertson averages 2.76 takedowns with 40% accuracy, substantially outperforming Dern's 0.93 takedowns at 18% accuracy
  • Robertson holds the stronger striking differential (-0.15 versus -0.46) and absorbs fewer significant strikes per minute
  • Dern is the more dangerous pure submission threat, making Robertson's preferred top-control approach strategically risky
Write-up

Robertson's superior takedown efficiency, positional wrestling, striking defense, and performance against the shared opponent give her more reliable paths to winning minutes. Dern can threaten submissions or reversals from almost any ground position, but her weak takedown accuracy and negative striking differential make sustained offensive control less dependable. Robertson is favored to manage the grappling exchanges carefully and edge a competitive decision.