Yuichi Sugita has a competitive grass court record of 15–16 across 31 matches (48.4%). The record shows a player capable of competing here, though there is clear room to push the win rate higher. Claimed 1 title on grass: Antalya.

At Grand Slam level (Wimbledon): Yuichi Sugita has struggled at Grand Slam level on grass: 1–6 (14.3%) in 7 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.

One final reached on grass, converted into a title — a perfect finals record on this surface. 1 semifinal. 2 quarterfinals.

vs. Top 10 on grass: 1–2 (33.3%, 3 matches). Top 10 opponents have represented a clear ceiling on grass; addressing that deficit is the single biggest lever for improving the overall record here.

By format on grass — best-of-five: 1–6 (14.3%); best-of-three: 14–10 (58.3%). Markedly stronger in three-set formats; the win rate drops noticeably in five-setters, which has direct implications for Grand Slam performance on grass.

Best season: 2017 — 6–3 (66.7%) from 9 matches. The best single-season display to date — a useful reference point as the grass record continues to develop.

Yuichi Sugita recorded a notable 6-match winning streak on grass — a run that demonstrates consistency across consecutive draws on this surface.