H2H data updated: 2026-09-03 00:00 UTC

Massimo Cierro vs Raul Antonio Viver H2H: 1-0

Massimo Cierro holds a 1–0 lead over Raul Antonio Viver in their ATP head-to-head. Across 1 main-draw meeting, Massimo Cierro leads 1–0 on clay. Most recently, Massimo Cierro won the 1989 San Marino round of 16 6-4 7-6.

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Massimo Cierro
ITA Age 62 Right-Handed 173 cm / 5'8"
H2H
1 – 0
1 main draw meetings
Raul Antonio Viver
ECU Age 65 Left-Handed 190 cm / 6'3"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Massimo Cierro #140 6-4 7-6 Raul Antonio Viver #294 Match data Aug 25, 1989* R16 San Marino ATP 250 Clay

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
Massimo Cierro #1,295 #113 295 1,535 18 45 28.6% 0 0 0 0 0 0
Raul Antonio Viver #957 #94 267 1,567 20 49 29.0% 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 Massimo Cierro Raul Antonio Viver
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 — — — — — — — 1979 3–1 75.0% #300 1,554 0 0
19 — — — — — — — 1980 0–3 0.0% #325 1,523 0 0
20 1984 0–1 0.0% #211 1,489 0 0 1981 0–2 0.0% — 1,510 0 0
21 1985 2–7 22.2% #192 1,475 0 0 1982 0–1 0.0% — 1,494 0 0
22 1986 0–4 0.0% #196 1,442 0 0 1983 0–1 0.0% #279 1,484 0 0
23 1987 3–3 50.0% #183 1,474 0 0 1984 5–5 50.0% #166 1,535 0 0
24 1988 1–4 20.0% #202 1,458 0 0 1985 7–13 35.0% #169 1,504 0 0
25 1989 6–8 42.9% #171 1,486 0 0 1986 0–3 0.0% #282 1,484 0 0
26 1990 2–3 40.0% #208 1,500 0 0 1987 0–1 0.0% #370 1,479 0 0
27 1991 3–4 42.9% #126 1,521 0 0 1988 2–5 28.6% #153 1,479 0 0
28 1992 1–10 9.1% #220 1,430 0 0 1989 3–7 30.0% #260 1,460 0 0
29 1993 0–1 0.0% #526 1,428 0 0 — — — — — — —
30 — — — — — — — 1991 0–1 0.0% #182 1,457 0 0
31 — — — — — — — 1992 0–5 0.0% #255 1,404 0 0
32 — — — — — — — 1993 0–1 0.0% #524 1,392 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 Massimo Cierro Raul Antonio Viver
Yr HardClayGrass Yr HardClayGrass
W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win %
18 — — — — — — — — — — — — — 1979 — — — — 3 1 4 75.0% — — — —
19 — — — — — — — — — — — — — 1980 — — — — 0 3 3 0.0% — — — —
20 1984 — — — — 0 1 1 0.0% — — — — 1981 — — — — 0 2 2 0.0% — — — —
21 1985 0 1 1 0.0% 2 6 8 25.0% — — — — 1982 — — — — 0 1 1 0.0% — — — —
22 1986 — — — — 0 4 4 0.0% — — — — 1983 — — — — 0 1 1 0.0% — — — —
23 1987 — — — — 3 3 6 50.0% — — — — 1984 — — — — 5 5 10 50.0% — — — —
24 1988 — — — — 1 4 5 20.0% — — — — 1985 0 1 1 0.0% 7 11 18 38.9% 0 1 1 0.0%
25 1989 — — — — 6 8 14 42.9% — — — — 1986 0 1 1 0.0% 0 2 2 0.0% — — — —
26 1990 — — — — 2 3 5 40.0% — — — — 1987 — — — — 0 1 1 0.0% — — — —
27 1991 — — — — 3 4 7 42.9% — — — — 1988 0 1 1 0.0% 2 4 6 33.3% — — — —
28 1992 0 1 1 0.0% 1 8 9 11.1% 0 1 1 0.0% 1989 1 1 2 50.0% 2 6 8 25.0% — — — —
29 1993 — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
30 — — — — — — — — — — — — — 1991 — — — — 0 1 1 0.0% — — — —
31 — — — — — — — — — — — — — 1992 0 1 1 0.0% 0 4 4 0.0% — — — —
32 — — — — — — — — — — — — — 1993 — — — — 0 1 1 0.0% — — — —
Career — 0 2 2 0.0% 18 42 60 30.0% 0 1 1 0.0% — 1 5 6 16.7% 19 43 62 30.6% 0 1 1 0.0%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics are precomputed from eligible main-draw results; point-stat values use the available detailed sample. 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 Massimo Cierro Raul Antonio Viver
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
18 — — — — — — — — — — — — — — — — 1979 1554 116.9 — — — — — +39 — 66.7% +0.56 1–0 1–0 — +0.48
19 — — — — — — — — — — — — — — — — 1980 1524 103.6 — — — — — +29 — 0.0% -2.83 — 0–3 (0%) — -0.10
20 1984 1490 100.8 — — — — — — — 33.3% -0.33 0–1 0–1 — +0.04 1981 1511 106.3 — — — — — — — 0.0% -2.75 — 0–1 — -0.22
21 1985 1476 119.2 — — — — — +18 — 27.3% -1.77 1–2 (33%) — — -0.12 1982 1495 100.8 — — — — — — — 33.3% -0.33 0–1 — — +0.19
22 1986 1443 96.7 — — — — — +27 — 11.1% -3.22 0–1 — — +0.01 1983 1484 101.2 — — — — — — — 0.0% -2.00 — 0–1 — +0.07
23 1987 1475 104.9 — — — — — +23 — 46.2% -0.38 1–0 1–2 (33%) — +0.59 1984 1536 110.8 — — — — — +21 — 50.0% -0.23 1–1 4–2 (67%) — +0.71
24 1988 1459 107.4 — — — — — +18 — 30.8% -1.16 1–2 (33%) — — +0.12 1985 1505 114.4 — — — — — +27 — 39.2% -0.67 1–3 (25%) 1–3 (25%) — +1.46
25 1989 1487 113.9 — — — — — +22 — 45.7% -0.54 3–4 (43%) 3–0 (100%) — +1.41 1986 1485 109.1 — — — — — — — 25.0% -1.75 0–2 0–1 — -0.24
26 1990 1501 111.7 — — — — — +36 — 41.7% -0.08 1–1 1–0 — +0.04 1987 1479 106.6 — — — — — — — 33.3% 0.00 0–1 — — -0.15
27 1991 1521 111.5 -0.80 +0.17 0.994 49.9% — +49 — 33.3% -1.17 — 0–1 — +0.47 1988 1479 117.0 — — — — — +50 — 41.2% -0.53 0–3 (0%) 2–2 (50%) — -0.17
28 1992 1431 100.2 -2.85 -3.55 0.753 44.5% — +40 — 17.9% -2.07 1–3 (25%) 1–1 — +0.55 1989 1460 105.4 — — — — — +30 — 31.8% -1.14 1–1 1–1 — +0.73
29 1993 1429 102.0 -0.60 +2.52 0.584 38.5% — — — 0.0% -4.50 — — — -0.11 — — — — — — — — — — — — — — — —
30 — — — — — — — — — — — — — — — — 1991 1458 100.9 +0.37 +0.65 0.940 48.0% — — — 0.0% -2.00 — — — -0.19
31 — — — — — — — — — — — — — — — — 1992 1405 97.5 -0.09 -2.32 0.851 46.4% — +33 — 23.1% -1.62 0–3 (0%) 1–1 — +0.46
32 — — — — — — — — — — — — — — — — 1993 1393 97.1 — — — — — — — 0.0% -3.00 — — — +0.01
Career — 1535 115.1 -1.94 -1.78 0.827 46.1% — +29 — 32.2% -1.27 8–14 (36%) 6–5 (55%) 98.2 +4.76 — 1567 117.4 -0.01 -1.83 0.866 46.7% — +30 — 35.4% -0.89 4–15 (21%) 10–15 (40%) 91.3 +4.41

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.