H2H data updated: 2026-10-17 00:00 UTC

Roy Barth vs Joaquin Loyo Mayo H2H: 1-0

Roy Barth holds a 1–0 lead over Joaquin Loyo Mayo in their ATP head-to-head. Across 1 main-draw meeting, Roy Barth leads 1–0 on hard courts. Most recently, Roy Barth won the 1968 La Jolla semifinal 6-3 6-3.

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Roy Barth
USA Age 79 Right-Handed 175 cm / 5'9"
H2H
1 – 0
1 main-draw meetings
Joaquin Loyo Mayo
MEX Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Roy Barth 6-3 6-3 Joaquin Loyo Mayo Match data Oct 7, 1968* SF La Jolla ATP 250 Hard

Estimated match date where the exact historical date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.

Career Comparison

Player Current Peak Pts Elo W L Win % GS 1000 including documented historical predecessor categories Finals 500 including documented historical predecessor categories 250 including documented historical predecessor categories Titles
Roy Barth #373 #107 0 1,732 61 135 31.1% 0 0 0 0 0 0
Joaquin Loyo Mayo — — — 1,667 — — — 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 Roy Barth Joaquin Loyo Mayo
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
21 1968 17–12 58.6% — 1,611 0 0 — — — — — — —
22 1969 16–11 59.3% — 1,689 0 0 — — — — — — —
23 1970 13–24 35.1% — 1,576 0 0 — — — — — — —
24 1971 6–29 17.1% — 1,463 0 0 — — — — — — —
25 1972 1–26 3.7% — 1,402 0 0 — — — — — — —
26 1973 4–21 16.0% #126 1,356 0 0 — — — — — — —
27 1974 4–12 25.0% #136 1,398 0 0 — — — — — — —

Surface Results by Age

Seasons are aligned by the age each player spent most of that calendar year. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.

Age Roy Barth Joaquin Loyo Mayo
Yr HardClayGrassCarpet Yr HardClayGrassCarpet
W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win %
21 1968 13 6 19 68.4% 2 3 5 40.0% 2 3 5 40.0% — — — — — — — — — — — — — — — — — — — — —
22 1969 5 4 9 55.6% 0 1 1 0.0% 11 5 16 68.8% 0 1 1 0.0% 1968 2 1 3 66.7% 4 3 7 57.1% 2 3 5 40.0% — — — —
23 1970 6 9 15 40.0% 3 7 10 30.0% 4 6 10 40.0% 0 2 2 0.0% 1969 4 6 10 40.0% — — — — 2 4 6 33.3% — — — —
24 1971 5 10 15 33.3% 1 7 8 12.5% 0 5 5 0.0% 0 7 7 0.0% 1970 3 7 10 30.0% 4 8 12 33.3% 3 4 7 42.9% 0 1 1 0.0%
25 1972 0 7 7 0.0% 1 4 5 20.0% 0 1 1 0.0% 0 14 14 0.0% 1971 5 10 15 33.3% 1 4 5 20.0% 3 2 5 60.0% 1 1 2 50.0%
26 1973 1 8 9 11.1% 0 3 3 0.0% 2 3 5 40.0% 1 7 8 12.5% 1972 2 2 4 50.0% 2 1 3 66.7% 0 1 1 0.0% — — — —
27 1974 1 5 6 16.7% 1 3 4 25.0% 2 2 4 50.0% 0 2 2 0.0% 1973 1 3 4 25.0% 0 3 3 0.0% 0 1 1 0.0% 0 5 5 0.0%
28 — — — — — — — — — — — — — — — — — 1974 0 4 4 0.0% 4 5 9 44.4% 2 1 3 66.7% 2 4 6 33.3%
29 — — — — — — — — — — — — — — — — — 1975 0 2 2 0.0% 9 12 21 42.9% 3 2 5 60.0% 0 3 3 0.0%
30 — — — — — — — — — — — — — — — — — 1976 — — — — — — — — — — — — 1 1 2 50.0%
32 — — — — — — — — — — — — — — — — — 1978 — — — — 0 1 1 0.0% — — — — — — — —
Career — 31 49 80 38.8% 8 28 36 22.2% 21 25 46 45.7% 1 33 34 2.9% — 17 35 52 32.7% 24 37 61 39.3% 15 18 33 45.5% 4 15 19 21.1%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.

Age Roy Barth Joaquin Loyo Mayo
Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Pressure+ Schedule Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Pressure+ Schedule
21 1968 1611 115.9 — — — — +99 -107 -74 60.3% +0.63 1–5 (17%) — — +0.74 — — — — — — — — — — — — — — — —
22 1969 1689 117.3 — — — — +43 — +25 54.8% +0.16 7–3 (70%) — — +0.19 1968 1562 109.4 — — — — +5 +8 -19 50.0% -0.19 3–2 (60%) — — -0.40
23 1970 1576 114.6 — — — — +65 -124 +94 38.6% -0.61 1–6 (14%) 3–1 (75%) 94.3 +2.01 1969 1556 104.5 — — — — +41 — -20 42.1% -0.74 1–2 (33%) — — +0.27
24 1971 1463 110.9 — — — — +6 -37 +100 22.5% -1.90 1–8 (11%) 1–1 — -0.61 1970 1567 117.5 — — — — +24 -47 -7 32.1% -1.28 5–3 (63%) 2–3 (40%) 101.6 -1.14
25 1972 1403 128.5 — — — — -39 +42 — 12.9% -2.60 1–6 (14%) 2–2 (50%) 97.6 -1.75 1971 1632 119.2 — — — — -36 -125 -10 41.3% -0.57 3–3 (50%) 1–4 (20%) 99.8 -0.83
26 1973 1356 109.0 — — — — -13 +58 +136 24.5% -1.76 1–6 (14%) 4–5 (44%) 97.0 +0.33 1972 1663 114.2 — — — — -48 -93 — 55.6% +0.78 1–0 1–1 — +0.59
27 1974 1399 108.9 — — — — -82 -14 +119 35.9% -1.21 0–4 (0%) 2–2 (50%) 97.2 +0.75 1973 1548 119.0 — — — — +8 -36 — 28.9% -1.50 1–7 (13%) 4–4 (50%) 93.8 -1.38
28 — — — — — — — — — — — — — — — — 1974 1578 123.7 — — — — -49 -17 +35 38.9% -0.74 5–5 (50%) 0–2 — -0.25
29 — — — — — — — — — — — — — — — — 1975 1555 119.2 — — — — -73 +23 +94 38.9% -1.01 4–1 (80%) 3–2 (60%) 105.4 +1.08
30 — — — — — — — — — — — — — — — — 1976 1570 110.9 — — — — — — — 50.0% -0.50 — 1–0 — -0.03
32 — — — — — — — — — — — — — — — — 1978 1566 103.3 — — — — — — — 0.0% -3.50 — — — -0.23
Career — 1733 119.0 — — — — +16 -50 +58 36.3% -0.98 12–38 (24%) 12–11 (52%) 92.2 +0.86 — 1668 122.5 — — — — -13 -20 +8 39.1% -0.82 23–23 (50%) 12–16 (43%) 101.5 -1.44

Career Rivalries

Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.