Marcos Giron has a competitive career record of 138–161 across 299 matches (46.2%). The record shows a player capable of competing at Tour level, though there is clear room to push the win rate higher. Claimed 1 title: Newport.
At Grand Slam level (Australian Open, Roland Garros, Wimbledon, US Open): Marcos Giron has struggled at Grand Slam level: 17–29 (37.0%) in 46 matches. The best-of-five format and elite fields make this the toughest benchmark on Tour.
ATP Masters 1000 (Indian Wells, Miami, Monte Carlo, Madrid, Rome, Canada, Cincinnati, Shanghai, Paris): Marcos Giron is 30–43 (41.1%) across 73 Masters matches — below .500 in the Tour's deepest fields. Lifting that record here would unlock better results across the calendar.
3 finals reached — won 1, lost 2 (33% conversion) — capable of reaching finals consistently, with room to improve at the decisive moment. 10 semifinals. 29 quarterfinals.
vs. Top 10: 6–31 (16.2%, 37 matches). Top 10 opponents have represented a clear ceiling; addressing that deficit is the single biggest lever for improving the overall record.
By format — best-of-five: 17–29 (37.0%); best-of-three: 121–132 (47.8%). Markedly stronger in three-set formats; the win rate drops noticeably in five-setters, which has direct implications for Grand Slam performance.
Peak season: 2024 — 27–26 (50.9%) from 53 matches. That year captures the ceiling of what Marcos Giron can do when performing at their best and represents the standard to aim for.
Recent Form 2026: 11–15 (42.3%). Last 10: L L L W L L L W W L — mixed results, some inconsistency in the current period.
