John Lloyd has found clay courts difficult, recording 56–81 across 137 matches (40.9%). The numbers point to a surface that has not consistently suited the game — a key area of opportunity on the calendar. John Lloyd has reached 1 final without yet claiming a title on clay — one of the finest margins in tennis.

At Grand Slam level (Roland Garros): John Lloyd is 13–15 (46.4%) across 28 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, without converting it into a title. That final-round experience is valuable groundwork for going one step further next time. 2 semifinals. 6 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: 9–15 (37.5%); best-of-three: 47–66 (41.6%). Slightly stronger in three-set contests on clay, though the five-set record is still respectable.

Best season: 1978 — 14–10 (58.3%) from 24 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.