Match Info

CHALLENGER WOMEN - SINGLES: Tucuman, clay - Quarter-finals

Date: 7 November 2025, Friday


	Solana Sierra		Oleksandra Oliynykova

	1	2
	1.57	2.25	Watch
	1.57	2.2	Watch
	1.79	2.06
	1.71	2.04	Watch
	1.62	2.31	Watch
Avarage Now (Initially)	1.65 ↓ (2)	2.17 ↑ (1.73)

The best margin for this event is 4.4%, offered by

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Current Win Probability

Solana Sierra
56.8%

Oleksandra Oliynykova
43.2%

Initial Probability

(when we started the analysis)

46.4%

53.6%

Our Initial ML Estimation

46.5%

53.5%

Analysis of Changes in Winning Probabilities:

Solana Sierra has improved its chances compared to the initial analysis. (+10.4%)

Note: This is a significant improvement in prediction, suggesting increased confidence in Solana Sierra's performance.

Oleksandra Oliynykova has seen a decrease in its chances compared to the initial analysis. (-10.4%)

Note: This is a significant drop in prediction, and Oleksandra Oliynykova might be facing challenges that affect their performance.

ML Model estimates a lower probability for Solana Sierra than the current prediction. (-10.3%)

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

ML Model estimates a higher probability for Oleksandra Oliynykova than the current prediction. (+10.3%)

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

Who will win by Users?

1	X	2
100%	0%	0%

Solana Sierra - Oleksandra Oliynykova Predictions

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

Users Predictions: Solana Sierra will win (5 of 5 users predict this - 100%).
Confidence interval (95%): 100% – 100%.

Expected Score (Market Odds): 2:0

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Preview

Sierra is ranked WTA: 67. Oliynykova is ranked WTA: 132.

Sierra is in very good shape right now (last 5 games: 4 wins).

Oliynykova has been unpredictable lately (in the last 5 games, wins – 2).

Oliynykova may have a physical advantage due to more rest days in recent times.

Recently, the players have not faced each other.

Form

✺ - easy match; ✺ - difficult match;

- Solana Sierra
ATP Challenger
06.11.25	Solana Sierra - Carla Markus	2:0 ✺
04.11.25	Solana Sierra - Miriam Bianca Bulgaru	2:0 ✺
22.10.25	Solana Sierra - Carole Monnet	0:2 ✺
21.10.25	Solana Sierra - Carolina Alves	2:0 ✺
12.10.25	Solana Sierra - Lola Radivojevic	2:0 ✺
Form Coefficient (based on results and difficulties of last matches) - 6.1 WWLWW
- Oleksandra Oliynykova
ATP Challenger
06.11.25	Jessica Pieri - Oleksandra Oliynykova	Pieri J. retired ✺
03.11.25	Alicia Herrero Linana - Oleksandra Oliynykova	0:2 ✺
29.10.25	Oleksandra Oliynykova - Jasmin Ortenzi	0:2 ✺
28.10.25	Oleksandra Oliynykova - Ekaterine Gorgodze	2:0 ✺
25.10.25	Oleksandra Oliynykova - Julia Grabher	1:2 ✺
Form Coefficient (based on results and difficulties of last matches) - 2.4 ?WLWL

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