H2H data updated: 2026-07-19 02:51 UTC

Lawson Duncan vs Guillermo Rivas H2H: 1-0

Lawson Duncan holds a 1–0 lead over Guillermo Rivas in their ATP head-to-head. Across 1 main-draw meeting, Lawson Duncan leads 1–0 on clay. Most recently, Lawson Duncan won the 1985 Forest Hills fourth round 6-3 6-4.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Lawson Duncan
USA Age 61 Right-Handed 185 cm / 6'1"
H2H
1 – 0
1 main draw meetings
Guillermo Rivas
ARG Age 62 Right-Handed 183 cm / 6'0"

H2H Match Log

DateTournamentCategoryRoundSurfaceWinnerScoreLoserMatch
May 10, 1985* Forest Hills ATP 250 R16 Clay Lawson Duncan #68 6-3 6-4 Guillermo Rivas #146 Match data

* Estimated match date where the exact historical date is unavailable.

Career Comparison

Player Current Peak Pts Elo W L Win % GS 1000 Finals 500 250 Titles
Lawson Duncan #1,094 #47 317 1,761 105 110 48.8% 0 0 0 0 0 0
Guillermo Rivas #783 #116 105 1,507 10 27 27.0% 0 0 0 0 0 0

Career Progression by Age

Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.

Age Lawson Duncan Guillermo Rivas
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
19 1984 4–5 44.4% #165 1,537 0 0 — — — — — — —
20 1985 26–19 57.8% #59 1,624 0 0 1984 1–4 20.0% #156 1,462 0 0
21 1986 11–18 37.9% #174 1,569 0 0 1985 3–8 27.3% #193 1,452 0 0
22 1987 6–9 40.0% #93 1,565 0 0 1986 0–3 0.0% #279 1,425 0 0
23 1988 21–17 55.3% #58 1,657 0 0 — — — — — — —
24 1989 25–22 53.2% #91 1,672 0 0 1988 0–3 0.0% #185 1,411 0 0
25 1990 12–18 40.0% #143 1,589 0 0 1989 6–8 42.9% #251 1,447 0 0
26 1991 0–2 0.0% #432 1,564 0 0 1990 0–1 0.0% #714 1,438 0 0