Go Soeda has found hard courts difficult, recording 39–67 across 106 matches (36.8%). 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 (Australian Open & US Open): Go Soeda has struggled at Grand Slam level on hard: 2–9 (18.2%) in 11 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.

ATP Masters 1000 on hard (Indian Wells, Miami, Canada, Cincinnati, Shanghai, Paris): Go Soeda has struggled at Masters level on hard: 0–6 (0.0%) in 6 matches. Improving at this level is the clearest path to a stronger overall record on this surface.

2 semifinals on hard without yet reaching a final — consistent deep runs that show the ability to string together wins across a full draw, with the step to the final still to come. 5 quarterfinals adds further depth to that picture.

vs. Top 10 on hard: 0–11 (0.0%, 11 matches). Top 10 opponents have represented a clear ceiling on hard; addressing that deficit is the single biggest lever for improving the overall record here.

By format on hard — best-of-five: 11–16 (40.7%); best-of-three: 28–51 (35.4%). Slightly better in five-set matches on hard — a positive sign for the Slams specifically.

Best season: 2011 — 5–4 (55.6%) from 9 matches. The best single-season display to date — a useful reference point as the hard record continues to develop.