Felix Barrientos has been dominant on hard, posting 12–3 across 15 matches (80.0% — exceptional). Few players in the Open Era have sustained that level of dominance across a full career on hard.

By format on hard — best-of-five: 9–1 (90.0%); best-of-three: 3–2 (60.0%). Significantly better in five-set matches — a strong physical profile on hard that tends to tell as matches and tournaments progress.

Best season: 1991 — 4–1 (80.0%) from 5 matches. The best single-season display to date — a useful reference point as the hard record continues to develop.

Felix Barrientos recorded a notable 6-match winning streak on hard — a run that demonstrates consistency across consecutive draws on this surface.