Marta Kostyuk - Ann Li

RouenUpcoming

Marta Kostyuk

#28

Ann Li

#36

Friday, April 17, 2026 at 08:00

Quick Take

Kostyuk's superior ranking, 3-0 clay form, and 88% first-set conversion rate outweigh a latent ankle concern, while Li's back-to-back three-setters have left her fatigued heading into this quarterfinal.

Set 1 WinnerMarta Kostyuk to win set 1--

Context Signals

Li's cumulative fatigue from back-to-back three-setters

HIGHIntel

Ann Li has played two consecutive three-set matches in Rouen totalling over six hours of clay court tennis in three days, creating significant fatigue heading into this quarterfinal.

•Li beat Kasatkina in three sets in R1 (6-7 6-3 6-4)
•Li beat Rakhimova in three sets in R2 (4-6 7-5 6-4)
•Over six hours of clay court tennis in three days

Kostyuk dominant on clay in 2026

HIGHStats

Kostyuk is 3-0 on clay in 2026 with dominant scorelines, demonstrating strong form on this surface heading into the quarterfinal.

•Beat Parry 6-1 6-4
•Beat Linette 6-4 6-0
•Beat McNally 2-6 6-2 6-1 (comeback from set down)

Market overvalues Kostyuk in matchWinner

HIGHMarket

The market implies 77% probability for Kostyuk to win, significantly exceeding the model's 64% estimate — no value edge exists on either side of the matchWinner market.

•Market implied probability: 77%
•Model estimated probability: 64%
•13-point gap eliminates value on Kostyuk and does not create enough edge on Li

Kostyuk's ankle ligament tear history

MEDIUMIntel

Kostyuk suffered a left ankle ligament tear at the Australian Open in January 2026, creating latent injury risk on clay where lateral movement demands are high.

•Left ankle ligament tear at Australian Open January 2026
•Missed Doha tournament post-injury
•Comeback form has been strong (3-0 on clay) but ankle remains a risk factor on clay

H2H shows competitive matches but outdated context

MEDIUMHead-to-head

Both previous meetings went to three sets with tight game counts (22 games each), but these matches pre-date current form and fatigue dynamics.

•2024 H2H: Kostyuk won 6-4 4-6 6-2 (22 total games)
•2020 H2H: Li won 7-5 1-6 6-3 (22 total games)
•Both on hard court, not clay — surface transfer uncertain

Betting Edges

Predictions

Markets to Avoid

Match Winner matchWinner:Kostyuk heavily favored by the market (77% implied vs 64% model estimate), eliminating any value edge on either selection.

Game Handicap gameHandicap:Li +4.5 games is overpriced by the market (78% implied vs 62% model estimate), no clear edge exists.

Total Games totalGames:Market quotes Over 23.5, but model favors Over 21.5 (58% confidence). At 23.5 threshold, probability is unclear; avoid both sides.

Marta Kostyuk enters this quarterfinal as the heavy favourite with the higher ranking (28 vs 36), superior clay form (3-0 in 2026), and stronger conversion rates across key metrics. She's shown resilience at Rouen, dropping the first set to McNally before storming back 6-2, 6-1, and dominated Parry 6-1, 6-4 in the opener. However, the ankle ligament tear suffered at the Australian Open in January is a latent injury concern that warrants monitoring on clay, where lateral movement demands are high.

Recent Form

Marta Kostyuk

6W 4L

W2-6 6-2 6-1#71 Caty McNallyApr 15, 2026

W6-1 6-4#100 Diane ParryApr 14, 2026

W6-4 6-0#56 Magda LinetteApr 10, 2026

L6-3 6-4#2 Elena RybakinaMar 22, 2026

W6-2 6-4#74 Kamilla RakhimovaMar 20, 2026

L6-4 6-4#2 Elena RybakinaMar 9, 2026

W6-3 6-2#94 Taylor TownsendMar 7, 2026

L6-7(4) 7-6(4) 7-6(7)#60 Elsa JacquemotJan 18, 2026

L6-4 6-3#1 Aryna SabalenkaJan 11, 2026

W6-0 6-3#5 Jessica PegulaJan 10, 2026

Ann Li

4W 6L

W4-6 6-2 6-3#74 Kamilla RakhimovaApr 15, 2026

W6-7(6) 6-2 6-4#72 Daria KasatkinaApr 13, 2026

L7-5 4-6 6-3#49 Dayana YastremskaApr 7, 2026

L7-6(5) 6-4#1 Aryna SabalenkaMar 20, 2026

W6-2 2-6 6-3#82 Kimberly BirrellMar 19, 2026

L6-3 7-5#57 Talia GibsonMar 4, 2026

L3-6 7-6(7) 6-4#79 Zeynep SonmezFeb 26, 2026

L6-3 5-7 6-4#14 Linda NoskovaFeb 15, 2026

L7-6(5) 5-7 6-4#41 Elisabetta CocciarettoFeb 11, 2026

W6-3 6-4#39 Magdalena FrechFeb 10, 2026

Head-to-Head

1-1 (2 meetings)

W6-4 4-6 6-2Marta Kostyuk#28vAnn Li#36Feb 26, 2024

L7-5 1-6 6-3Marta Kostyuk#28vAnn Li#36Nov 1, 2020

2 total meetings

Data Coverage (dev)

Data Coverage

Complete

StatsAvailable

Apr 16, 13:52

IntelAvailable

Apr 16, 14:04

OddsAvailable

Apr 16, 19:03

Injuries/News (from Intel)Available

Apr 16, 14:04

Analysis updated: Apr 16, 14:11