Santiago Giraldo has found grass courts difficult, recording 13–17 across 30 matches (43.3%). The numbers point to a surface that has not consistently suited the game — a key area of opportunity on the calendar.

At Grand Slam level (Wimbledon): Santiago Giraldo has struggled at Grand Slam level on grass: 4–7 (36.4%) in 11 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.

By format on grass — best-of-five: 4–7 (36.4%); best-of-three: 9–10 (47.4%). 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: 2010 — 4–4 (50.0%) from 8 matches. The best single-season display to date — a useful reference point as the grass record continues to develop.