INDIAN WELLS, United States, November 10, 2026: Jessica Pegula kept her WTA Finals semifinal hopes alive with a 6-2, 7-5 victory over Marta Kostyuk on Tuesday, recovering from her opening defeat to Coco Gauff and eliminating the Ukrainian from contention at the season-ending championship. The American controlled the first set, overcame Kostyuk’s resistance in a more competitive second, and secured the late break that allowed her to close out a match she could not afford to lose.
The victory improved Pegula’s Singles Group 1 record to 1-1, setting up a potentially decisive final round-robin meeting with Wimbledon champion Linda Nosková. Kostyuk, who entered the tournament as a late replacement for world No. 1 Elena Rybakina, fell to 0-2 after losing both matches in straight sets. Pegula has now won three sets and lost two across her opening two matches, an important improvement in a group where set and game percentages can decide qualification if three players finish level on victories.
Pegula vs Kostyuk: WTA Finals Match Result and Key Information
Pegula entered the encounter needing to recover from a three-set defeat against Coco Gauff. Kostyuk was also seeking her first victory after losing to Nosková.
| Match Detail | Confirmed Information |
|---|---|
| Tournament | WTA Finals |
| Venue | Indian Wells Tennis Garden, California |
| Stage | Singles Group 1, second round-robin match |
| Winner | Jessica Pegula |
| Final score | 6-2, 7-5 |
| First set | Pegula 6-2 |
| Second set | Pegula 7-5 |
| Pegula’s group record | 1 win, 1 loss |
| Kostyuk’s group record | 0 wins, 2 losses |
| Immediate consequence | Pegula remains in semifinal contention; Kostyuk eliminated |
| Pegula’s next opponent | Linda Nosková |
| Kostyuk’s final opponent | Coco Gauff |
The full tournament schedule, developing group results and knockout structure are maintained in The Sports Encounter’s WTA Finals tournament hub.
Story at a glance
Pegula vs Kostyuk: WTA Finals Match Result and Key Information
Pegula entered the encounter needing to recover from a three-set defeat against Coco Gauff. Kostyuk was also seeking her first victory after losing to Nosková.
How Pegula Took Control of the First Set
Pegula approached her second group match with considerably less room for error than she had enjoyed against Gauff.
Kostyuk Fights Back but Pegula Finds the Decisive Break
The second set was considerably more demanding.
Why Pegula’s Straight-Sets Victory Could Matter Beyond One Win
The WTA Finals uses round-robin competition rather than immediate knockout elimination.
Kostyuk’s WTA Finals Campaign Ends After Two Straight-Set Defeats
Kostyuk’s elimination concludes a difficult tournament for a player who was not originally scheduled to compete.
How Pegula Took Control of the First Set
Pegula approached her second group match with considerably less room for error than she had enjoyed against Gauff.
Another defeat would have severely damaged her prospects of finishing among the top two players in the group.
The American responded with a decisive opening set.
She broke Kostyuk’s serve twice and took the set 6-2, establishing the early advantage through consistent baseline play and effective returning.
That performance mattered beyond the immediate scoreboard.
Pegula had struggled to contain Gauff’s defensive movement during their opening match. Against Kostyuk, she imposed greater control over the exchanges and avoided the prolonged three-set contest that had drained her energy against her fellow American.
The difference between the two matches illustrates how important a player’s ability to reset can be during the WTA Finals, where opponents and tactical challenges change every two days.
The American’s experience across different surfaces and high-pressure matches was a major theme of TSE’s detailed profile of Pegula’s 2026 season.
Kostyuk Fights Back but Pegula Finds the Decisive Break
The second set was considerably more demanding.
Pegula established an early advantage, but Kostyuk responded with stronger resistance and recovered through several breaks of serve to bring the score level.
The contest became much less predictable as the Ukrainian threatened to force a deciding set.
Pegula ultimately secured another break late in the set and served out the match 7-5.
That sequence was the defining turning point.
Rather than allowing an increasingly competitive second set to become another extended battle, Pegula converted the late opportunity and completed the victory without needing a third.
The significance of that finish becomes clearer when compared with her opening match against Gauff.
In that encounter, Pegula led 5-1 in the second set but was forced into a tiebreak after Gauff recovered. Pegula eventually won the set, only to lose the decider 6-2.
The WTA’s official report on Gauff’s opening victory documents the physical and competitive demands of that match.
Against Kostyuk, Pegula avoided another deciding set and secured the victory that kept her campaign alive.
Why Pegula’s Straight-Sets Victory Could Matter Beyond One Win
The WTA Finals uses round-robin competition rather than immediate knockout elimination.
Each player faces the other three members of her group once. The top two advance to the semifinals, with official tiebreak procedures applied when players finish level.
That makes the difference between a straight-sets victory and a three-set victory potentially important.
Pegula lost to Gauff in three sets but defeated Kostyuk in two.
She therefore improved her cumulative set record to 3-2, moving above 50% in sets won despite having an even 1-1 match record.
Pegula’s Two Matches Compared
| Measure | Against Gauff | Against Kostyuk | Combined |
|---|---|---|---|
| Result | Lost | Won | 1-1 |
| Score | 4-6, 7-6(5), 2-6 | 6-2, 7-5 | Five sets played |
| Sets won | 1 | 2 | 3 |
| Sets lost | 2 | 0 | 2 |
| Games won | 13 | 13 | 26 |
| Games lost | 18 | 7 | 25 |
| Set-winning percentage | 33.3% | 100% | 60.0% |
The combined totals are calculated from the confirmed set scores. Tiebreak points are not counted as additional games.
Pegula has won 26 games and lost 25, giving her a positive game differential of one and a game-winning percentage of approximately 51.0%.
That represents a substantial statistical recovery from her opening defeat, when she won 13 games and lost 18.
It does not guarantee semifinal qualification. It does, however, give Pegula a stronger position if a multi-player tie must eventually be resolved through set and game percentages.
The WTA’s official tournament guide explains the round-robin qualification and tiebreak rules.
Kostyuk’s WTA Finals Campaign Ends After Two Straight-Set Defeats
Kostyuk’s elimination concludes a difficult tournament for a player who was not originally scheduled to compete.
She entered the field after defending champion Elena Rybakina withdrew because of a viral illness.
The Ukrainian faced Linda Nosková in her opening match and lost 6-2, 6-4.
Her second defeat against Pegula left her with four sets lost and none won.
| Kostyuk’s Match | Opponent | Result | Set Record |
|---|---|---|---|
| Opening round | Linda Nosková | Lost 2-6, 4-6 | 0-2 |
| Second round | Jessica Pegula | Lost 2-6, 5-7 | 0-2 |
| Combined | Two opponents | 0 wins, 2 losses | 0-4 |
Kostyuk has won 13 games and lost 25 across those four sets, producing a game-winning percentage of approximately 34.2%.
Her final group match against Gauff will still be played, but it can no longer deliver a semifinal berth.
The Difficult Road That Brought Kostyuk to Indian Wells
Kostyuk’s arrival at the WTA Finals followed a disappointing late-season period affected by a right wrist problem.
She had been competing for one of the remaining singles qualification positions when her Ningbo campaign ended through retirement against Ekaterina Alexandrova.
That withdrawal helped Karolína Muchová secure the final automatic place in the field.
The Sports Encounter examined the sequence in its report on Kostyuk’s Ningbo retirement and Muchová’s qualification.
Kostyuk subsequently entered Indian Wells only after Rybakina withdrew.
She had also acknowledged persistent wrist discomfort in the preceding months and a lack of recent competitive preparation.
Those circumstances provide relevant context, although they do not establish that the injury directly caused any particular error or dismissal during the Pegula match.
It would be unfair to present either defeat solely as a consequence of her physical condition without specific medical evidence.
Rybakina’s Withdrawal Changed the Entire Group
Elena Rybakina had qualified as the world No. 1 and defending WTA Finals champion.
Her withdrawal removed one of the strongest title contenders from a group that also contained Pegula, Gauff and Nosková.
The WTA confirmed that the Kazakh player was suffering from a viral illness and would not compete in the championship.
Its official withdrawal announcement established Kostyuk as the replacement.
Before that announcement, the original draw had produced an exceptionally demanding group featuring two experienced American contenders, the world No. 1 and the reigning Wimbledon champion.
TSE analyzed those matchups in its report on the original WTA Finals group draw.
Kostyuk’s entry changed the personnel, but the underlying competition remained difficult because three players had established records against elite opponents throughout the season.
What the Group 1 Standings Show After Pegula’s Victory
Pegula’s victory was the first confirmed result of the group’s second round of matches.
The table below includes that result while leaving Gauff’s meeting with Nosková unrecorded until its final score is separately confirmed.
| Player | Matches | Wins | Losses | Sets W-L | Games W-L |
|---|---|---|---|---|---|
| Jessica Pegula | 2 | 1 | 1 | 3-2 | 26-25 |
| Linda Nosková | 1 | 1 | 0 | 2-0 | 12-6 |
| Coco Gauff | 1 | 1 | 0 | 2-1 | 18-13 |
| Marta Kostyuk | 2 | 0 | 2 | 0-4 | 13-25 |
This is a partial, match-specific group snapshot, not an official final ranking. Players have not all completed the same number of matches.
Pegula has completed two matches, while Gauff and Nosková have their second group match still to be accounted for in this snapshot.
The next results will establish which players have the strongest positions before the final round-robin session.
What Does Pegula Need to Reach the WTA Finals Semifinals?
Pegula’s next opponent is Linda Nosková, whose 2026 season included the Wimbledon singles championship.
Nosková began her WTA Finals debut by beating Kostyuk 6-2, 6-4.
That straight-sets victory established a useful opening advantage in both sets and games.
For Pegula, defeating Nosková would produce a final group record of 2-1.
Such a result could qualify her for the semifinals, but the exact outcome would depend on the remaining group matches and any necessary tiebreak calculations.
Group 1 Qualification Scenarios
| Scenario | What Happens | Consequence for Pegula |
|---|---|---|
| Gauff beats Nosková, then Pegula beats Nosková | Pegula finishes 2-1 and holds the head-to-head win over Nosková | Pegula qualifies alongside Gauff if Gauff also defeats Kostyuk |
| Nosková beats Gauff, then Pegula beats Nosková | Pegula finishes 2-1; Gauff could also finish 2-1 | A three-way tie may require official set and game percentages |
| Pegula loses to Nosková | Pegula finishes 1-2; Nosková records at least two victories | Pegula cannot reach the top two under the remaining head-to-head and points combinations |
| Gauff defeats Kostyuk | Gauff adds another victory | Increases pressure on Pegula if Nosková also wins its other match |
These scenarios are conditional. They are not predictions or claims that the remaining fixtures have already been completed.
The most straightforward objective for Pegula is to defeat Nosková and reach two victories.
Her 3-2 set record through two matches also gives her a statistical base that could matter if three players finish on equal match records.
Why Nosková Is a Particularly Difficult Final Opponent
Nosková’s qualification for the WTA Finals followed a remarkable season that included titles in Berlin and Wimbledon.
The Czech player defeated Pegula in the Berlin final, demonstrating that she could disrupt the American’s controlled baseline game through early ball-striking and aggressive serving.
She also defeated Gauff in Madrid during the season.
Her ability to compete against both American contenders means Pegula’s final match cannot be treated as a routine opportunity to collect another victory.
TSE examined Nosková’s development, Wimbledon championship and tactical strengths in its comprehensive profile of Linda Nosková’s breakthrough season.
The matchup will challenge Pegula’s ability to redirect pace, protect her second serve and prevent Nosková from repeatedly taking control with her first attacking shot.
Those tactical questions were already evident before the championship, but their importance has increased now that Pegula has little room for another defeat.
Gauff’s Opening Victory Still Matters to Pegula’s Qualification
Pegula’s group position cannot be understood without considering her opening defeat against Coco Gauff.
Gauff won that match 6-4, 6-7(5), 6-2 after a demanding contest lasting two hours and 39 minutes.
Pegula had opportunities to close the second set more efficiently but was forced into an extended battle after Gauff recovered from 5-1 down.
The third set then went decisively in Gauff’s favor.
Gauff’s movement and ability to extend rallies became particularly important in the deciding set.
The American’s improvements and continuing serving challenges were examined in TSE’s analysis of Gauff’s 2026 season and championship ambitions.
Her head-to-head victory over Pegula could also become relevant if the group finishes with a two-player tie.
But if three competitors finish level, the WTA’s broader set and game percentage rules may determine the qualifying positions.
How Pegula’s Season Prepared Her for This Recovery
Although Pegula entered the Kostyuk match under substantial pressure, recovering from disappointing results has been an important characteristic of her season.
She qualified for a fifth consecutive WTA Finals through consistent performances across hard, clay and grass courts.
Her results included titles in Dubai and Charleston, along with deep tournament runs in Berlin, Cincinnati and the US Open.
The Sports Encounter examined the significance of her qualification alongside Gauff in its report on the two Americans securing fifth consecutive Finals appearances.
That experience does not guarantee success against Nosková, but it helps explain why Pegula was able to respond to a difficult opening match rather than allowing one defeat to determine her tournament.
Her straight-sets victory over Kostyuk provides a result consistent with her season-long ability to remain competitive across different events and opponents.
What Pegula’s Win Means for the Wider Championship
Pegula’s victory keeps another established contender in the semifinal conversation.
The other singles group began with victories for Aryna Sabalenka and Mirra Andreeva against Karolína Muchová and Elina Svitolina, respectively.
Continue the WTA Finals Story
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WTA FinalsGuo and Mladenovic Save Four Match Points as Sabalenka and Andreeva Make Winning WTA Finals Starts
WTA FinalsPegula and Gauff Book Fifth Straight WTA Finals as Świątek’s Escape Route NarrowsThose opening results created a similar early division between winning and losing players.
The tournament’s demanding schedule also makes recovery important because the competitors must repeatedly face elite opposition with limited rest between matches.
TSE’s analysis of the physical and tactical demands of the WTA Finals explores how the format can expose weaknesses that are less consequential in longer, more forgiving tournament schedules.
Pegula’s opening defeat to Gauff and recovery against Kostyuk provide a useful example.
One difficult match did not end her campaign. But the victory has only restored her opportunity to qualify, not completed the task.
How Much Can Pegula Gain in Rankings Points?
The WTA awards ranking points for victories during both the round-robin and knockout stages.
| Achievement | Ranking Points | Pegula’s Status |
|---|---|---|
| Round-robin victory | 200 | One victory confirmed |
| Semifinal victory | 400 | Not yet qualified |
| Championship final victory | 500 | Not reached |
| Maximum undefeated total | 1,500 | No longer possible for Pegula after opening defeat |
Pegula has earned 200 ranking points from her confirmed victory over Kostyuk.
She can add another 200 by defeating Nosková, and further points if she reaches and wins knockout matches.
Because she lost her opening match, she cannot achieve the maximum 1,500-point undefeated championship total.
These are tournament ranking-point awards, not the same as the separate group points used in the WTA Finals standings.
What Happens Next for Pegula and Kostyuk?
Pegula faces Nosková in her final scheduled Group 1 match on November 12.
Kostyuk is scheduled to face Gauff in the other final group contest.
The semifinal places will be determined after the remaining round-robin results and, if necessary, application of the official tiebreak rules.
The singles semifinals are scheduled for November 14, with the championship match on November 15.
For broader context on the original eight-player field, the championship contenders and the tournament’s move to Indian Wells, read TSE’s complete WTA Finals curtain-raiser.
The Sports Encounter Verdict: Pegula Has Recovered, but Her Hardest Test Remains
Pegula did exactly what she needed against Kostyuk: win without surrendering a set.
After a physically demanding defeat to Gauff, she controlled the opening set and found the late breakthrough required to finish the second.
Her reward is another opportunity to reach the semifinals.
Kostyuk’s campaign, by contrast, reflects the difficulty of entering an elite tournament at short notice after an injury-affected period and limited competitive preparation.
The Ukrainian’s elimination follows two straight-set defeats, although her final group match remains scheduled.
For Pegula, the next challenge is more demanding. Nosková has already beaten her in a major final this season and possesses the aggressive game capable of preventing the American from controlling rallies.
The result has kept Pegula in the competition. Her next performance, combined with the remaining group results, will decide whether this recovery becomes a semifinal qualification.
Jessica Pegula vs Marta Kostyuk: Frequently Asked Questions
Who won Jessica Pegula vs Marta Kostyuk?
Jessica Pegula defeated Marta Kostyuk 6-2, 7-5 in their second WTA Finals round-robin match.
Has Jessica Pegula qualified for the WTA Finals semifinals?
No. Pegula remains in contention with a 1-1 record, but her semifinal place has not been confirmed.
Is Marta Kostyuk eliminated from the WTA Finals?
Yes. Kostyuk’s second consecutive straight-set defeat ended her chances of reaching the singles semifinals.
Who does Pegula play next?
Pegula faces Linda Nosková in her final Group 1 match.
When is Pegula vs Nosková?
The final Group 1 round-robin session is scheduled for November 12, 2026, in Indian Wells.
Why did Marta Kostyuk replace Elena Rybakina?
Rybakina withdrew from the WTA Finals because of a viral illness, and Kostyuk entered the singles draw as an alternate.
What happened in Pegula’s first group match?
Pegula lost 4-6, 7-6(5), 2-6 to Coco Gauff in a match lasting two hours and 39 minutes.
How many sets has Pegula won at the WTA Finals?
Through her first two matches, Pegula has won three sets and lost two.
How many ranking points did Pegula earn against Kostyuk?
She earned 200 ranking points for the round-robin victory.
How many players advance from each WTA Finals group?
The top two singles players from each four-player group advance to the semifinals, subject to the official tiebreak procedures.
