Tsitsipas vs Collignon Result: Tsitsipas Wins Swiss Open

Stefanos Tsitsipas beat Raphael Collignon 6-4, 6-7(2), 7-6(5) in the EFG Swiss Open Gstaad final on July 20, settling the Tsitsipas vs Collignon prediction market. The Greek veteran delivered when it counted most, closing out a hard-fought third set tiebreak to claim his first clay-court title of the 2026 season.

Polymarket closed Tsitsipas as the clear favorite at 100 percent upon resolution. The market correctly called this one, and traders who backed Tsitsipas early at lower prices were well rewarded as the final unfolded.

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What Happened: Tsitsipas vs Collignon Swiss Open Final

Stefanos Tsitsipas controlled the opening set, breaking Collignon and serving out a clean 6-4 to take the early lead. Raphael Collignon pushed back hard in the second, forcing a tiebreak that swung the Belgian’s way at 7-2, leveling the match at one set apiece.

The third set belonged to Tsitsipas in terms of nerve. Both players held firm through twelve games, sending the match into another tiebreak. Tsitsipas edged it 7-5 to seal the title. Collignon, a first-time ATP Tour finalist making his debut on the biggest stage, had saved a match point against Juan Manuel Cerundolo in the semifinal — but Tsitsipas gave him no such lifeline in the final.

Tsitsipas entered Gstaad unseeded and worked through four matches, three of them in three sets, to reach Sunday. Collignon, seeded seventh, had been the tournament’s drama king all week before running into a more experienced champion. The title is Tsitsipas’s first on clay since Monte-Carlo 2024.

How the Market Called It

Polymarket closed Tsitsipas at 100 percent upon full resolution of the match. Before the tournament began, the market opened Tsitsipas at roughly 68 percent — a solid but not overwhelming favorite tag for a player entering unseeded. The market correctly favored Tsitsipas across the week as he dispatched four opponents to lift the trophy.

The market read proved accurate. Tsitsipas’s experience and clay-court pedigree made him the clear pick, and the 6-4, 6-7(2), 7-6(5) scoreline showed why the market stayed firm rather than swinging heavily toward Collignon at any stage. Total volume hit $825,129, reflecting strong trader conviction behind this final. That depth of capital reinforces how firmly the market settled on Tsitsipas as the expected champion.

Where the Big Money Landed

Wallet AV23IUa made the most notable move of the market cycle. The trader built a position worth $53,753 at 59.5 cents and added another $48,694 at 57.8 cents — both backing Tsitsipas at roughly 58 to 60 percent implied odds. Those buys came well before the market’s final push to settlement.

The same wallet then exited a position of $101,600 at 99.9 cents, locking in a profit of approximately $1,300 across the full cycle. A second wallet, 0xaa77…15a5, also sold $25,774 at 99.9 cents near market close. The whale side backed Tsitsipas and won the market, with the early entries at sub-60-cent prices proving especially well-timed.

What Is Next for Stefanos Tsitsipas

Stefanos Tsitsipas now carries title momentum into the remainder of the summer clay swing. The Gstaad crown pushes his 2026 tour-level record forward and adds ranking points as the hardcourt swing approaches. Traders looking for the next Tsitsipas market can find live prediction markets on Lines.com, where the tennis hub tracks ATP events week by week.

Raphael Collignon, despite the final loss, leaves Gstaad with his best ATP result ever. His run to a first tour-level final signals the Belgian will be one to watch on clay going forward. Lines.com covers emerging players across the ATP calendar — check the tennis hub for upcoming Collignon markets as the season continues.

LINES RESOLUTION VERDICT

STEFANOS TSITSIPAS

Tsitsipas won the EFG Swiss Open Gstaad final over Raphael Collignon 6-4, 6-7(2), 7-6(5) in three hard-fought sets. The result matched the market, which correctly favored the Greek veteran throughout the tournament.