Roland Garros WTA: Elina Svitolina vs Marta Kostyuk

Prediction markets put the probability at 46%: Roland Garros WTA: Elina Svitolina vs Marta Kostyuk. Currently, markets are divided (46% YES, 54% NO). PARIS (AP) — There will be a first-time women’s champion at the French Open this year, and two Ukrainian players are among the strongest contenders.

What’s Happening

The Roland Garros WTA: Elina Svitolina vs Marta Kostyuk quarterfinal is set after both Ukrainian players advanced through the fourth round on May 31, 2026. 15th-seeded Marta Kostyuk defeated four-time champion Iga Swiatek 7-5, 6-1 on Swiatek's birthday, reaching her first French Open quarterfinal and extending her undefeated run on clay this season. Earlier the same day, Elina Svitolina rallied past Switzerland's Belinda Bencic in three sets to secure her own place in the last eight at Paris. [Washington Post, May 31]

The matchup guarantees a Ukrainian semifinalist at Roland-Garros for the first time, and arrives in a draw stripped of former champions in both the men's and women's fields following Swiatek's exit. Kostyuk enters the quarterfinal with momentum from a straight-sets dismantling of the four-time titlist, while Svitolina — a former world No. 3 and multiple-time Grand Slam semifinalist — brings deeper major experience to the contest. The current probability of 46% YES / 54% NO reflects the tight read between Kostyuk's clay form in 2026 and Svitolina's track record in best-of-three matches at Slams. Neither player has previously lifted the Coupe Suzanne-Lenglen, making this Roland Garros WTA: Elina Svitolina vs Marta Kostyuk meeting a guaranteed step toward a first-time champion. [Reuters, May 31]

The quarterfinal is scheduled for the next round of play at Court Philippe-Chatrier in Paris, with the winner advancing to face the victor of the adjacent quarterfinal bracket. Kostyuk's path through the draw has included her statement victory over Swiatek by 7-5, 6-1, while Svitolina's three-set comeback against Bencic showcased her ability to recover from a deficit on clay. With no remaining former Roland-Garros champions in either singles draw, the all-Ukrainian quarterfinal stands as one of the defining storylines of the 2026 French Open. The result will determine which Ukrainian woman carries the nation's first semifinal hopes into the final weekend at Roland-Garros. [France 24, May 31]

Traded on Polymarket — $80K Volume

Lower-volume market on Polymarket ($80K). Wider spreads expected — enter with limit orders and be aware of slippage risk. Currently 46c YES.