Hernan Gumy has a competitive clay court record of 89–84 across 173 matches (51.4%). The record shows a player capable of competing here, though there is clear room to push the win rate higher. Claimed 1 title on clay: Santiago.

At Grand Slam level (Roland Garros): Hernan Gumy is 4–6 (40.0%) across 10 Grand Slam matches — below .500, though the elite draw depth at the Slams makes that a notoriously difficult barrier to crack.

ATP Masters 1000 on clay (Monte Carlo, Madrid, Rome): Hernan Gumy is 5–7 (41.7%) across 12 Masters matches — below .500 in the Tour's deepest fields. Lifting that record here would unlock better results across the whole clay swing.

2 finals reached on clay — won 1, lost 1 (solid 50% conversion) — consistently getting to finals and winning the majority is a hallmark of elite performers on clay. 6 semifinals. 19 quarterfinals.

vs. Top 10 on clay: 3–4 (42.9%, 7 matches). Competitive against the elite, but still narrowly below .500 — closing that gap would directly elevate the overall clay court profile.

By format on clay — best-of-five: 8–11 (42.1%); best-of-three: 81–73 (52.6%). Markedly stronger in three-set formats; the win rate drops noticeably in five-setters, which has direct implications for Grand Slam performance on clay.

Peak season: 1995 — 24–15 (61.5%) from 39 matches. That year captures the ceiling of what Hernan Gumy can do on clay when performing at their best and represents the standard to aim for.