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Macy Chiasson vs Yana Santos

Women's Bantamweight · Prelims · UFC 320: Ankalaev vs. Pereira 2

FINAL: Yana Santos by U-DEC
Macy Chiasson
Macy Chiasson
Age 34 · Elo 1549
LWWLW
126 days since last fight
vs
Yana Santos
Yana Santos
Age 35 · Elo 1535
WWLLL
154 days since last fight

Who wins, by source

Macy ChiassonYana Santos
Claude Claude: Macy Chiasson 65% Claude: Yana Santos 35% 65% 35% GPT GPT: Macy Chiasson 68% GPT: Yana Santos 32% 68% 32% Elo Elo: Macy Chiasson 52% Elo: Yana Santos 48% 52% 48%

Each row splits one source's view of the fight. The dashed line is even odds. Where the models sit further from the market, they are claiming an edge.

Tale of the tape

Macy ChiassonYana Santos
Strikes landed / min Macy Chiasson Strikes landed / min: 3.77 3.77 Yana Santos Strikes landed / min: 4.42 4.42 Strikes absorbed / min Macy Chiasson Strikes absorbed / min: 2.79 2.79 Yana Santos Strikes absorbed / min: 3.12 3.12 Striking accuracy Macy Chiasson Striking accuracy: 46% 46% Yana Santos Striking accuracy: 58% 58% Striking defense Macy Chiasson Striking defense: 44% 44% Yana Santos Striking defense: 50% 50% Takedowns / 15 min Macy Chiasson Takedowns / 15 min: 2.37 2.37 Yana Santos Takedowns / 15 min: 0.97 0.97 Takedown defense Macy Chiasson Takedown defense: 70% 70% Yana Santos Takedown defense: 42% 42% Sub attempts / 15 min Macy Chiasson Sub attempts / 15 min: 0.4 0.4 Yana Santos Sub attempts / 15 min: 0.1 0.1

Career UFC averages. Bars are scaled within each row, so compare left against right, not row against row. The stronger side is highlighted, and for strikes absorbed the lower number is the better one.

How it ends

KO/TKOSubmissionDecision
Claude Claude: KO/TKO 30% 30% Claude: Submission 20% 20% Claude: Decision 50% 50%GPT GPT: KO/TKO 10% 10% GPT: Submission 15% 15% GPT: Decision 75% 75%

Each model's split across the ways this fight can finish, out of 100.

The analysis

Claude
Macy Chiasson by Decision, 65% confidence

Chiasson's recent finishing streak (2 KO/TKOs, 1 submission in last 3 wins) shows improved killer instinct. Her 5-inch height and 4-inch reach advantages are significant at 135 pounds. While Santos has better striking volume (4.42 vs 3.77 SLPM), Chiasson's superior grappling (2.37 takedowns vs 0.97) and 70% takedown defense should control positioning. Common opponent analysis favors Santos, but Chiasson's recent improvements suggest she's evolved past those performances.

GPT
Macy Chiasson by Decision, 68% confidence

Chiasson's superior takedown offense (2.37 TD avg, 38% accuracy) and strong takedown defense (70%) should allow her to dictate where the fight takes place. While Santos is the more accurate and higher-volume striker, her takedown defense is a significant liability (42%), making her susceptible to Chiasson's grappling. Both fighters have low finishing rates, making a decision likely.