Kyle Nelson
"The Monster"
17-6-1
VS
2026-10-17
UFC Fight Night: Buckley vs. Malott
Lightweight
Cristian Perez
"El Puas"
13-2-0
MAIN + MARKET PREDICTION
Cristian Perez 'El Puas'
82.9% CONFIDENCE
ACTUAL RESULT — MODEL WAS CORRECT
Cristian Perez 'El Puas' won
KO/TKO · Round 1 · 0:27
Market vs Model
Kyle Nelson
Cristian Perez
Opening line
+330
-400
Market says
23%
77%
Main + Market says
17%
83%
Gap vs market
-5
+5
Market Margin says
20%
80%
Edge at that price
-3
-0
No side clears the 5-point value threshold at the opening line.
The gap uses whichever model you've selected. Value always comes from Market Margin, the one model whose disagreements with the betting line were backtested (flagged sides returned about +8% for favorites and +18% for underdogs on flat bets at the opening price across ~2,800 past fights). Other models' disagreements with the market haven't held up, so they don't get a value flag. It's measured against the opening line — if the price has moved, the edge will be different.
How It Ends
50%
Decision
33%
KO / TKO
17%
Submission
Decision50.4%
KO / TKO33.1%
Submission16.5%
How long it lasts 3-round fight
54%
Goes the distance
fair -117
46%
Ends in a finish
fair +117
Rounds lineOverUnder
0.5 90% -888 10% +888
1.5 70% -236 30% +236
2.5 54% -117 46% +117
When it ends
Round 120%
Round 221%
Round 35%
Goes the distance54%
"Over 1.5" means the fight lasts past the middle of round 2, the way sportsbooks settle it. Fair odds are the break-even price with no vig, so compare them with a book's line. On unseen fights this model beat the plain base rate by about 4% (log loss; 51% of 3-round fights go the distance), so treat it as a tilt away from the base rate, not a certainty.
Why XGBoost leans this way
Kyle Nelson
Cristian Perez
Age edge (significant gap)
Matchup
19%
Age
Kyle Nelson
10%
Experience edge (total fights)
Matchup
10%
Age
Cristian Perez
7%
Strike rate delta r1 to r3
Kyle Nelson
6%
Last 2 avg fight time
Kyle Nelson
4%
Sub attempts/fight
Kyle Nelson
3%
Head absorption rate
Kyle Nelson
3%
Avg takedowns attempted
Kyle Nelson
3%
Last 2 avg fight time
Cristian Perez
3%
Fights per year
Kyle Nelson
3%
Elo rating edge
Matchup
2%
Fights per year
Cristian Perez
2%
Avg takedowns attempted
Cristian Perez
2%
← pushes toward Kyle Nelson pushes toward Cristian Perez →
Bars show each factor's SHAP contribution to this specific prediction — how much it pushed the win probability toward one fighter, given everything else the model knows. Percentages are each factor's share of the total push across the top 30 factors.

Kyle Nelson

Win Streak
N/A
Finish Rate
N/A%
Avg Duration
N/Am
Last 5 fights (most recent first)
L KO
L KO
W DEC
L KO
W KO
Height: 180 cm
Weight: 155 lbs
Reach: 180 cm
Stance: Switch

Cristian Perez

Win Streak
N/A
Finish Rate
N/A%
Avg Duration
N/Am
Last 5 fights (most recent first)
W KO
Height: 175 cm
Weight: 155 lbs
Reach: 183 cm
Stance: Orthodox