Match Info

CHALLENGER MEN - SINGLES: Athens 2, hard - 1/16-finals

Date: 25 November 2025, Tuesday


	Sergio Callejon Hernando		Olle Wallin

	1	2
	2.1	1.67	Watch
	2.05	1.65	Watch
	2.12	1.75
	1.95	1.76	Watch
	1.99	1.71	Watch
Avarage Now (Initially)	2.04 ↓ (2.25)	1.71 ↑ (1.57)

The best margin for this event is 4.3%, offered by

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Current Win Probability

Sergio Callejon Hernando
45.5%

Olle Wallin
54.5%

Initial Probability

(when we started the analysis)

41.1%

58.9%

Our Initial ML Estimation

40.4%

59.6%

Analysis of Changes in Winning Probabilities:

Sergio Callejon Hernando has improved its chances compared to the initial analysis. (+4.4%)

Olle Wallin has seen a decrease in its chances compared to the initial analysis. (-4.4%)

ML Model estimates a lower probability for Sergio Callejon Hernando than the current prediction. (-5.1%)

Note: The ML model's lower estimate suggests that there may be underlying issues with Sergio Callejon Hernando that the model has picked up on.

ML Model estimates a higher probability for Olle Wallin than the current prediction. (+5.1%)

Note: The ML model's higher estimate suggests that Olle Wallin could outperform expectations, possibly based on recent matchups or player stats.

Who will win by Users?

1	X	2
40%	0%	60%

Sergio Callejon Hernando - Olle Wallin Predictions

Users Predictions: 5 users predict this event. Callejon Hernando will win (votes: 2 - 40%). Wallin will win (votes: 3 - 60%).

Verified Performance Core (Selected Experts): 1 Selected Experts predict this event. Wallin (votes: 1 - 100%).

Expected Score (Market Odds): 0:2

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Preview

Callejon Hernando is ranked ATP: 568. Wallin is ranked ATP: 456.

Each of the players is struggling with stability in their game.

Wallin may face physical challenges compared to their opponent, as they have played more matches in recent days.

Wallin might have a minor edge in this game.

In recent times, the players did not meet on the field.

Form

✺ - easy match; ✺ - difficult match;

- Sergio Callejon Hernando
ATP Challenger
17.11.25	Michele Ribecai - Sergio Callejon Hernando	2:0 ✺
16.11.25	Leonardo Borrelli - Sergio Callejon Hernando	0:2 ✺
ITF Tournaments
11.11.25	Sergio Callejon Hernando - Mario Gonzalez Fernandez	1:2 ✺
ATP Challenger
30.10.25	Remy Bertola - Sergio Callejon Hernando	2:0 ✺
28.10.25	Sergio Callejon Hernando - Gauthier Onclin	2:0 ✺
Form Coefficient (based on results and difficulties of last matches) - 7 LWLLW
- Olle Wallin
ITF Tournaments
22.11.25	Olle Wallin - Georgii Kravchenko	0:2 ✺
21.11.25	Ryan Nijboer - Olle Wallin	1:2 ✺
20.11.25	Aleksandr Braynin - Olle Wallin	0:2 ✺
19.11.25	Guilherme Valdoleiros - Olle Wallin	0:2 ✺
ATP Challenger
02.11.25	Olle Wallin - Matteo Martineau	1:2 ✺
Form Coefficient (based on results and difficulties of last matches) - 4.9 LWWWL

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