Aljamain Sterling
"Funk Master"
25-5-0
VS
Kevin Vallejos
"El Chino"
16-1-0
Fight Insights
63%
Kevin Vallejos
Fighters who are 5+ years younger than their opponent have won 63% of their UFC fights (1773-1054)
Kevin Vallejos is 25, Aljamain Sterling is 37
58%
Aljamain Sterling
Fighters who absorb under 2.2 significant strikes per minute have won 58% of their UFC fights (1262-912)
Aljamain Sterling: absorbs 2.1/min
62%
Kevin Vallejos
Fighters who have won 85%+ of 12+ pro fights facing an opponent who has been finished 2+ times in the UFC have won 62% of their UFC fights (471-286)
Kevin Vallejos: 16-1-0 record | Aljamain Sterling: finished 2 times
57%
Aljamain Sterling
Fighters who average 3.8+ minutes of control time per fight have won 57% of their UFC fights (1170-886)
Aljamain Sterling: 4.8 min control/fight
62%
Kevin Vallejos
Fighters who are on a 3+ fight win streak facing an opponent who has 15+ UFC fights have won 62% of their UFC fights (259-156)
Kevin Vallejos: 4-fight win streak | Aljamain Sterling: 23 UFC fights
53%
Matchup
Fights where a fighter who scores 0.89+ knockdowns per 15 minutes faces an opponent who has been finished 2+ times in the UFC end in a KO/TKO 53% of the time (vs 33% of all UFC fights, n=514)
Real UFC history since 2006, using each fighter's record, form and stats as they stood
before every past fight. Only patterns that hold up statistically (corrected for
testing many ideas at once) and point the same way in both halves of history are shown —
these describe the past, they are not predictions.
What Every Model Says
Main + Market
currently viewing
51.1%
48.9%
Aljamain Sterling
XGBoost
51.1%
48.9%
Aljamain Sterling
LightGBM
48.3%
51.7%
Kevin Vallejos
Logistic (Core)
46.9%
53.1%
Kevin Vallejos
CatBoost
51.5%
48.5%
Aljamain Sterling
Ensemble
56.0%
44.0%
Aljamain Sterling
Recency-Heavy · CatBoost
51.0%
49.0%
Aljamain Sterling
Recency-Heavy · Ensemble
50.9%
49.1%
Aljamain Sterling
Recency-Heavy · LightGBM
46.8%
53.2%
Kevin Vallejos
Recency-Heavy · Logistic (Core)
46.9%
53.1%
Kevin Vallejos
Recency-Heavy · XGBoost
49.7%
50.3%
Kevin Vallejos
With Odds · CatBoost
50.1%
49.9%
Aljamain Sterling
With Odds · Ensemble
58.4%
41.6%
Aljamain Sterling
With Odds · LightGBM
56.0%
44.0%
Aljamain Sterling
With Odds · Logistic (Core)
46.9%
53.1%
Kevin Vallejos
With Odds · XGBoost
52.3%
47.7%
Aljamain Sterling
Click a model to view the fight through its eyes — probabilities, prediction and explanation update.
How It Ends
59%
Decision
31%
KO / TKO
10%
Submission
How long it lasts 3-round fight
63%
Goes the distance
fair -167
37%
Ends in a finish
fair +167
| Rounds line | Over | Under |
|---|---|---|
| 0.5 | 93% -1414 | 7% +1414 |
| 1.5 | 79% -379 | 21% +379 |
| 2.5 | 69% -227 | 31% +227 |
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
Aljamain Sterling
Kevin Vallejos
14%
10%
7%
7%
5%
5%
4%
4%
4%
4%
3%
3%
3%
3%
← pushes toward Aljamain Sterling
pushes toward Kevin Vallejos →
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.
Aljamain Sterling
Win Streak
2
Finish Rate
N/A%
Avg Duration
17.2m
Last 5 fights (most recent first)
W
DEC
W
DEC
L
DEC
W
DEC
L
KO
Height:
170 cm
Weight:
145 lbs
Reach:
180 cm
Stance:
Orthodox
Kevin Vallejos
Win Streak
4
Finish Rate
75%
Avg Duration
7.0m
Last 5 fights (most recent first)
W
KO
W
KO
W
DEC
W
KO
Height:
170 cm
Weight:
145 lbs
Reach:
173 cm
Stance:
Switch
Head-to-Head Stats
Aljamain Sterling
ADVANTAGE
Kevin Vallejos
Striking Accuracy
Strikes Landed/Min
Strikes Absorbed/Min
Striking Defense
Takedown Accuracy
Takedown Defense
Knockdowns/Fight
Avg Control Time (sec)
Strikes Per Round
Head Strike %
Body Strike %
Leg Strike %
Last 5 Win Rate
Last 5 Finish Rate