Marcos Giron

Insights

Late start, then a long run of appearances

Giron’s Grand Slam career is split into 2014 and 2019-present, with a five-year gap before the current stretch began. Since returning, he has played 28 of his 29 Slam tournaments, showing sustained qualification and main-draw presence.

Best results are concentrated at the third round

His top Slam finish is the round of 32, reached four times. He has also reached the round of 64 nine times and the round of 128 sixteen times, so his results cluster heavily in the opening two rounds.

Australian Open remains his weakest major by deep runs

Across seven Australian Open appearances, his best result is only the round of 32 in 2025. The other six trips ended in the round of 128, making it the only Slam where he has not reached the round of 64.

2023 was his strongest Slam season

In 2023 he produced his best overall yearly set of results: round of 32 at the French Open, round of 64 at Wimbledon, and round of 128 at both the Australian Open and US Open. That is his only season with a Slam run to the third round.

His best results came at ages 29 to 31

All four round-of-32 finishes came between ages 29 and 31: the French Open in 2021 and 2023, the Australian Open in 2025, and Wimbledon in 2026. That places his peak Slam outcomes firmly in his late twenties and early thirties.