Colin Dibley has a competitive clay court record of 90–86 across 176 matches (51.1%). 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: Kitzbuhel.

At Grand Slam level (Roland Garros): Colin Dibley is 9–12 (42.9%) across 21 Grand Slam matches — below .500, though the elite draw depth at the Slams makes that a notoriously difficult barrier to crack.

One final reached on clay, converted into a title — a perfect finals record on this surface. 8 semifinals. 19 quarterfinals.

vs. Top 10 on clay: 2–11 (15.4%, 13 matches). Top 10 opponents have represented a clear ceiling on clay; addressing that deficit is the single biggest lever for improving the overall record here.

By format on clay — best-of-five: 16–18 (47.1%); best-of-three: 74–68 (52.1%). Slightly stronger in three-set contests on clay, though the five-set record is still respectable.

Peak season: 1972 — 20–8 (71.4%) from 28 matches. That year captures the ceiling of what Colin Dibley can do on clay when performing at their best and represents the standard to aim for.