UFC 329: McGregor vs. Holloway 2 · Flyweight · 3 rounds
Opening locked Aug 19, 2026 · Alessandro Costa 55% · Submission · Round 1 · scored hit (Alessandro Costa / Submission)

BrazilAlessandro Costa
“Nono”
Unranked · 17-5 · striker · Orthodox · 30 · IQ C+ 66
Brazilian Warriors BJJ · Brazil
Alessandro Costa
54.9%
Cody Durden
45.1%
Model win probability · confidence 48%
No market posted yet.
Why the model leans this way
Alessandro Costa is the model side at 54.9% because the largest live edges sit where this fight is likely to be fought. Grappler historical edge: Durden (ground 70) into Costa (TD reaction 68). Open-stance look favors the southpaw / switch side slightly. Ground game is the clearest separator: Durden 70 (B) vs Costa 34 (D). Durden brings 4.0 TD/15 and 6 sub wins into Costa's 82% takedown defense.
Ground game
DurdenDurden 70 (B) vs Costa 34 (D). Durden brings 4.0 TD/15 and 6 sub wins into Costa's 82% takedown defense.
Takedown reaction
CostaCosta 68 (C+) vs Durden 50 (D). When the shot comes, Costa stuffs it at 82% — Durden is at 69%.
Fight IQ
CostaCosta 66 (C+) vs Durden 52 (C). Problem-solving and win-lane diversity sit with Costa (C+ vs C).
Timing & reaction
CostaCosta 68 (B) vs Durden 55 (C). The reaction proxy — defense plus absorb plus knockdown timing — sits with Costa.
Path · Costa
Costa has to stuff the first takedown (68 TD-reaction), keep this standing, and hunt a pocket that grades 63 on defense. Wrestling is the death lane.
Path · Durden
Durden has to wrestle early, chain the second shot, and make Costa defend the neck instead of throwing. It is the only reliable flip if the pocket goes cold.
A one-score fight on the model. Any three-minute pocket explosion or a stuck takedown against the grain wipes a lot of this number.
Style and location. Wrestling entries, fence control, and mat time should decide the scorecards — or the finish. Costa is built as: Pocket striker. Durden is built as: Hybrid who can change levels — suspect hips against the shot, southpaw. Fight IQ delta is +14 toward Costa — that is composure, win-lane diversity, and whether they solve a second problem when the first look dies.
The edges that move the number. Ground game: Durden 70 (B) vs Costa 34 (D). Durden brings 4.0 TD/15 and 6 sub wins into Costa's 82% takedown defense. Takedown reaction: Costa 68 (C+) vs Durden 50 (D). When the shot comes, Costa stuffs it at 82% — Durden is at 69%. Fight IQ: Costa 66 (C+) vs Durden 52 (C). Problem-solving and win-lane diversity sit with Costa (C+ vs C).
The finish path leans the mat (44% submission). Once a takedown sticks, the neck becomes the whole fight. A one-score fight on the model. Any three-minute pocket explosion or a stuck takedown against the grain wipes a lot of this number. These trait marks are derived from FightMetric rates, career method shares, and loaded bout rows — reaction time and agility are proxies, not stopwatch numbers. The model folds the same scores into win probability, so a hole on this card is a hole in the percentage.
Fight IQ, ground game, defense, counter punching, reaction, agility, and takedown reaction — scored from tape and folded into the win number above.
Wrestling entries, fence control, and mat time should decide the scorecards — or the finish.
R1
33%
R2
21%
R3
23%
Dist
23%
Most likely: Round 1. Expected 8.6 minutes.
Grappler historical edge: Durden (ground 70) into Costa (TD reaction 68). Open-stance look favors the southpaw / switch side slightly.
Ground game (tape)
34 vs 70
Striking differential
0.61 vs -0.23 SLpM−SApM (recency / opp. adjusted)
Fight IQ
C+ 66 vs C 52 — composure, win-lane diversity, adjustments
Grappling composite
TD avg × acc × def + control + submission threat (adj.)
Takedown reaction
82% vs 69% hips on the shot
Damage ratio
1.19 vs 0.93 landed/absorbed
Timing & reaction
Defense + absorb + knockdown timing proxy
Punching agility
Output × accuracy × age curve
Output (SLpM)
3.86 vs 3.24
Recency form
Opp.-adjusted last 0/0 UFC rows
Counter punching
49 vs 44
Style interaction
Grappler historical edge: Durden (ground 70) into Costa (TD reaction 68). Open-stance look favors the southpaw / switch side slightly.
Striking efficiency
51% vs 53%
Striking defense
60% vs 62%
Age-adjusted curve
30 vs 35
Takedown mismatch
TD def 82% vs 69%
Durability
0 vs 0 KO losses
Pocket defense (tape)
C+ vs C+
Cardio proxy
Output sustainability + distance rate
Reach / length
67.0" vs 67.0"
Strength of schedule
Opp. quality 50 vs 50
Layoff / rust
Time since last fight
Championship / 5-round
Three-round fight
No recent UFC tape in the book.
No recent UFC tape in the book.
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