Frances Tiafoe begins his U.S. Open with a first-round meeting against Martin Damm Jr. on Monday night, and the market has made the No. 11-ranked player a clear -382 favorite to advance. It is a repeat of last year’s matchup at the USTA Billie Jean King National Tennis Center, but Damm’s recent progress means this one may be more competitive than a routine opener.
The two met at the 2025 U.S. Open, where Tiafoe beat Damm in the Round of 64 in four sets. That contest showed that Damm can make this kind of match uncomfortable, even if the American still held enough quality to get through. It also underlined the experience gap: Tiafoe has lived through plenty of deep runs here, while Damm’s U.S. Open history remains limited.
Tiafoe’s Grand Slam standard remains the benchmark
Before his third-round exit in 2025, Tiafoe had reached at least the quarterfinals of the U.S. Open in three straight years. That is the level he is judged against now. A player with that record is expected to move past an opening-round opponent, especially at a tournament where he has repeatedly handled pressure well.
Even so, the betting line suggests this is not being treated like a straightforward mismatch. A -382 price reflects confidence in Tiafoe, but it also leaves room for the idea that Damm can ask questions if he settles quickly. First-round matches at a Grand Slam can shift fast when the underdog finds rhythm early.
What Damm brings into the rematch
Damm arrives with some encouragement from his recent Grand Slam results. He made the second round in his debut at the 2025 U.S. Open, and earlier this year he also exited in the second round at Wimbledon. Those are not headline-grabbing runs, but they do show a player beginning to understand the demands of the biggest stages.
That matters against an opponent like Tiafoe. When the favourite has the bigger reputation, the underdog’s best route is usually to extend the match, stay close in the key moments, and force some tension into the early sets. Damm already showed in their last meeting that he can take a set off Tiafoe and keep the contest honest.
Why this first-round match is worth watching
This is Tiafoe’s fourth Grand Slam appearance in 2026 and another chance to remind the draw why he remains one of the most reliable American names at the U.S. Open. For Damm, it is a second straight year facing the same opponent at the same venue, which gives him a useful reference point even if the challenge is still steep.
The expectation is that Tiafoe advances. The question is whether he does it cleanly, or whether Damm can use his growing experience to turn the opening round into something more testing than the numbers suggest.
