Kyle Nelson
"The Monster"
17-6-1
VS
Cristian Perez
"El Puas"
13-2-0
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.
What Every Model Says
Main + Market
currently viewing
17.1%
82.9%
Cristian Perez
XGBoost
28.3%
71.7%
Cristian Perez
LightGBM
29.6%
70.4%
Cristian Perez
Logistic (Core)
36.5%
63.5%
Cristian Perez
CatBoost
33.0%
67.0%
Cristian Perez
Ensemble
29.2%
70.8%
Cristian Perez
Market Margin · XGBoost
20.4%
79.6%
Cristian Perez
Recency-Heavy · CatBoost
35.6%
64.4%
Cristian Perez
Recency-Heavy · Ensemble
31.7%
68.3%
Cristian Perez
Recency-Heavy · LightGBM
34.5%
65.5%
Cristian Perez
Recency-Heavy · Logistic (Core)
36.0%
64.0%
Cristian Perez
Recency-Heavy · XGBoost
33.4%
66.6%
Cristian Perez
With Odds · CatBoost
21.6%
78.4%
Cristian Perez
With Odds · Ensemble
21.5%
78.5%
Cristian Perez
With Odds · LightGBM
20.8%
79.2%
Cristian Perez
With Odds · Logistic (Core)
36.5%
63.5%
Cristian Perez
With Odds · XGBoost
21.6%
78.4%
Cristian Perez
Click a model to view the fight through its eyes — probabilities, prediction and explanation update.
How It Ends
50%
Decision
33%
KO / TKO
17%
Submission
How long it lasts 3-round fight
54%
Goes the distance
fair -117
46%
Ends in a finish
fair +117
| Rounds line | Over | Under |
|---|---|---|
| 0.5 | 90% -888 | 10% +888 |
| 1.5 | 70% -236 | 30% +236 |
| 2.5 | 54% -117 | 46% +117 |
When it ends
"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
19%
10%
10%
7%
6%
4%
3%
3%
3%
3%
3%
2%
2%
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