João Fonseca brings first-strike power from clay and hard courts, and grass is still the surface where that power has the least to show for it. With only a handful of grass matches on his record, he sits 27th in the men’s GTC Grass Rankings on a provisional GTC Grass Rating of 94.
Grass at a glance
- GTC Grass Rating: 94, 27th in the men’s rankings (29th before the season, on 97); provisional
- Pillars: Lawn Form 36, Arsenal 66, Wimbledon 28, Nerve 36
- Nationality: Brazil
- Best Wimbledon result: Third round (2025, 2026)
- Grass titles: None yet
- Wimbledon 2026 seeding: 24th seed
How João plays on grass
Fonseca’s game is built on a heavy forehand and a serve that sets it up. When he controls the first two shots he can end points quickly on any surface, and that first-strike threat is why his Arsenal score of 66 sits well above the rest of his profile.
Grass exposes the parts of his game that are still being built. His swings are long, and the low, skidding bounce gives him less time to prepare them; on bad days that shows as rushed errors and a return that never settles. Movement on grass is a learned skill, and he has had few matches to learn it. Lawn Form and Nerve both sit at 36, which reflects a small sample more than a verdict. The positive sign is that his serve already holds up well on the surface, which gives him a base to build on.
His comments at Wimbledon summed up the position: he said he hoped grass would become his favourite surface one day, an acknowledgement that the adaptation is still under way.
Grass record
His first grass summer came in 2025. He lost to Flavio Cobolli in the first round at Halle, then beat Jacob Fearnley 6-4, 6-1, 7-6(5) in his first Wimbledon match and went on to the third round, where Nicolás Jarry beat him.
The 2026 grass season
The 2026 swing began at Halle, two weeks after he had beaten Novak Djokovic at Roland Garros. Yannick Hanfmann beat him 6-2, 6-2 in 67 minutes in the first round, a reminder of how short the switch from clay can feel, and the rating dipped from 97 to 96. He then withdrew from Eastbourne with right shoulder discomfort.
At Wimbledon, seeded 24th, he played better than the rating suggests. He beat Roberto Bautista Agut 7-6(4), 6-4, 6-3 and Jesper de Jong 6-1, 7-5, 6-4 to match his 2025 run to the third round. There, qualifier Roman Safiullin, a former Wimbledon quarter-finalist, beat him 6-3, 6-3, 6-3 in a little over two hours. The one-sided defeat weighed more in the GTC model than the two wins, and the rating finished at 94.
Looking ahead to 2027
The priority for 2027 is volume. Two or three warm-up events, ideally including a 250 where he can win several matches, would give him the grass repetitions he has not yet had and remove the provisional tag. Technically, shorter preparation on the return and more willingness to come forward behind the forehand would help most. A realistic target is a first grass quarter-final or better at a warm-up event and a Wimbledon fourth round.
