HALLE/WASHINGTON, June 19, 2026 (by Michael Dickens)
In a repeat of their BOSS Open final last in Stuttgart last Sunday, World No. 5 Ben Shelton faced World No. 9 Taylor Fritz in a battle of big-serving, big-hitting Americans to open quarterfinal play at the Terra Wortmann Open in North Rhine-Westphalia Friday.
By the conclusion of their two-hour, 45-minute skirmish on Heristo-Arena, Fritz prevailed by the slightest of margins, 6-7 (5), 7-6 (8), 7-6 (3), to advance to Saturday’s semifinal round against World No. 3 Alexander Zverev of Germany.
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Shelton came into his last-eight meeting with Fritz leading their career head-to-head 3-1 – including the title win six days ago at Stuttgart – and brought with him a six-match winning streak. In Fritz, he took on a competitor who leads the ATP Tour in grass wins this decade. Something had to give.
It should come as little surprise that through the first two sets – both decided by tie-breaks – there was only one break point among the two competitors and a difference of just three points, favoring Fritz 81-78. It was that close.
After Shelton won the opening set in tie-break fashion 7-5, Fritz came back in the second and saved a match point in the tie-break. Down 6-7, he went on to win the second set tie-break 10-8.
We’re going the distance🍿
Taylor Fritz wins a second set tiebreak to level the match here in Halle! 🌱@ATPHalle #TWO26 pic.twitter.com/Ga4MU6kkjW
— Tennis TV (@TennisTV) June 19, 2026
Then, in the third set, Fritz saved a pair of break points in the 11th game that could have given Shelton a chance to serve out the match. Instead, it came down to another tie-break, which was won by Fritz for his 42nd victory on grass since 2020.
Fritz gained a mini-break at 4-3 after Shelton netted a third-shot backhand return. Then, he held serve twice to set up a match point, ahead 6-3. This time, Fritz didn’t waiver and he won on his first match-point opportunity. It must have felt like sweet revenge for him after losing the Stuttgart final to Shelton.
The release of emotion at the end of the match showed just how important of a win it was for the 28-year-old southern Californian, who improved to 18-11. Regardless, Fritz and the 23-year-old Shelton – good friends off the tennis court – shared a warm embrace at the net after their battle was over.
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Fritz finished with 24 aces to 15 for Shelton. He won 80 percent (74 of 93) of his first-serve points, saved all four break points he faced, while Shelton did not face any break points. Fritz outpointed his opponent 126-117.
“I don’t know if I could have taken losing another one of those to Ben,” Fritz said during his on-court interview with ATP Media, referencing earlier losses this season to Shelton in the Dallas and Stuttgart finals. “When I say that, I mean just doing everything but winning the match, because the funny thing about this one is he had the chances. In the other two he won, I probably had the better chances. I kind of just had it in my head capitalizing on the big chances and I am happy to get through that.”
Zverev pushed hard by Collignon but prevails
The triumph was the first for Fritz against a Top 10 player since he beat Italy’s Lorenzo Musetti at the Nitto ATP Finals last November. As Fritz pursues his first ATP Tour title of the season, he will next oppose the top-seeded Zverev, who was pushed to two tie-break sets by 51st-ranked qualifier Rafael Collignon of Belgium before winning 7-6 (10), 7-6 (2), in one hour and 59 minutes.
The victory was Zverev’s 10th straight, after winning his first Grand Slam title at Roland-Garros earlier this month, and his tour-leading 38th victory of the 2026 season, moving ahead of Jannik Sinner’s 37.
Zverev became the fourth man to reach six Terra Wortmann Open semifinals in tournament history, joining Roger Federer (15), Yevgeny Kafelnikov (7) and Philipp Kohlschreiber (6).
What a way to win it 😍
Alexander Zverev battles past Raphael Collignon to reach an eighth semi-final of 2026! 🔝@ATPHalle #TWO26 pic.twitter.com/44SB7g6pvc
— Tennis TV (@TennisTV) June 19, 2026
The German No. 1 saved a trio of set points during the first-set tie-break, at 5-6, 7-8 and 9-10 before he won the opening set on his third set-point opportunity.
Zverev and Collignon each finished with 14 aces. Zverev won 82 percent (50 of 61) of his first-serve points, saved the only break-point he faced and outpointed Collignon 91-80.
“I think it was a really high-level match from both of us and I think the serving was unbelievable,” Zverev said during his on-court interview with ATP Media. “But when I had the chances, I was playing well from the baseline. In the important moments in the first-set tie-break I kept my nerve and won that. I am very happy with the straight sets win.”
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Altmaier upsets Medvedev to reach biggest semifinal of career
Two-time Halle finalist Daniil Medvedev came into his quarterfinal with German wild card Daniel Altmaier having not dropped a set this week. While Altmaier was seeking the biggest semifinal of his career – and his first ATP Tour semifinal in almost five years – the World No. 7 and fourth seed was clearly the pre-match favorite.
The 81st-ranked Altmaier put his heart and soul into the quarterfinal match and emerged as the surprise winner, 6-4, 6-7 (5), 6-4 in two hours and 45 minutes to move into the last four on Saturday. It’s just Altmaier’s third-career tour-level semifinal – and the first one since 2021.
A first Top 10 win on grass for home favourite Daniel Altmaier! 🌱🇩🇪@ATPHalle #TWO26 pic.twitter.com/6KqlF7VDbz
— Tennis TV (@TennisTV) June 19, 2026
In the final set, Altmaeir was broken at love while trying to serve for the match, ahead 5-3, but recovered right away in the next game. He broke Medvedev’s serve for the third time in the match and went on to earn victory on his third match point.
“It means a lot and on a surface I have not had the greatest results,” said Altmaier during his on-court interview, after securing his first Top-10 victory on grass. “I am really happy to go through. A lot of emotions coming through my head but I am really happy right now. I will enjoy that moment.”
Altmaier struck 15 aces and won 76 percent (57 of 75) of his first-serve points. He saved five of six break points he faced and broke Medvedev’s serve three times in five tries. Altmaier outpointed his opponent 111-109.
WHAT A WIN! WHAT A REACTION! 🔥#TWO26 | @atphalle pic.twitter.com/M2kEb2BK4E
— ATP Tour (@atptour) June 19, 2026
Tiafoe outlasts Auger-Aliassime, wins on fifth match-point opportunity
On Saturday, Altmaier will face World No. 26 Frances Tiafoe of the United States, who pulled out a 3-6, 6-3, 7-6 (12) victory over World No. 4 Felix Auger-Aliassime of Canada in two hours and 32 minutes Friday evening.
While Auger-Aliassime looked to equal his best result in Halle, when he made the 2021 semifinals, Tiafoe was attempting to garner his second Top-10 win of the week after taking out Flavio Cobolli of Italy in the first round. Now, he will meet Altmaier for the second-straight week after defeating the German last week in the first round at Stuttgart.
What a finish 🥵
Frances Tiafoe saves 3 match points vs FAA to reach the Halle semi-finals#TWO26 pic.twitter.com/a7jTmcX4kL
— Tennis TV (@TennisTV) June 19, 2026
Looking back, Tiafoe withstood 25 aces from Auger-Aliassime and won 70 percent (51 of 73) of his first-serve points plus 61 percent (22 of 36) of his second-serve points. Both competitors converted two break points and finished even on total points at 105.
The quarterfinal came down to the third-set tie-break, in which both players stayed on serve through the first 24 points. Finally, Tiafoe broke to go ahead 13-12. Then, he won the match on his fifth match-point opportunity after saving three match points from Auger-Aliassime.
“I’m happy about the win,” Tiafoe said during his on-court interview with ATP Media. “It was up and down for both of us in the third. I gave it one last push. We both had our chances. It all came down to just a couple of points.”
Introducing your final 4 in Halle 🍀 #TWO26 | @ATPHalle pic.twitter.com/tIcdOmNmsh
— ATP Tour (@atptour) June 19, 2026
Around the Terra Wortmann Open
The semifinal doubles match that was originally scheduled to take place Friday on Schauinsland-Reisen Court matching Flavio Cobolli of Italy and Ben Shelton of the United States against lucky losers Daniel Altmaier of Germany and Joao Fonseca was rescheduled to Saturday. It will take place on Heristo-Arena following the conclusion of both singles semifinals.
Both Shelton and Altmaier played earlier Friday in the singles quarterfinals.
The other doubles semifinal will match qualifiers Robert Galloway of the United States and John Peers of Australia against French duo Theo Arribage and Albano Olivetti.
Saturday’s Halle order of play
By the numbers
With Taylor Fritz, Ben Shelton and Frances Tiafoe competing in the quarterfinals, it’s the first time in tournament history that three Americans had reached the last eight in the same edition at Halle.
“Quotable …”
“I am way more aggressive. I feel like I am a talented player and felt like I needed to discover that. As a child I went to the net a lot and then on my way I got more comfortable on slower surfaces and now we have an eye opener to play better on faster surfaces and it is working out really well.”
– Wild card Daniel Altmaier, during his on-court interview following his upset win over No. 4 seed Daniil Medvedev. Altmaier has been working this week with former German ATP Tour player Dustin Brown.
