H2H data updated: 2026-09-05 00:00 UTC

Frederik Fetterlein vs Eduardo Masso H2H: 1-0

Frederik Fetterlein holds a 1–0 lead over Eduardo Masso in their ATP head-to-head. Across 1 main-draw meeting, Frederik Fetterlein leads 1–0 on carpet. Most recently, Frederik Fetterlein won the 1991 Copenhagen round of 32 3-6 6-3 6-2.

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

Frederik Fetterlein
DEN Age 56 Right-Handed 190 cm / 6'3"
H2H
1 – 0
1 main draw meetings
Eduardo Masso
BEL Age 62 Left-Handed 177 cm / 5'10"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Frederik Fetterlein #264 3-6 6-3 6-2 Eduardo Masso #108 Match data Mar 7, 1991* R32 Copenhagen ATP World Series → modern equivalent ATP 250 Carpet

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
Frederik Fetterlein #1,381 #75 588 1,589 26 49 34.7% 0 0 0 0 0 0
Eduardo Masso #1,177 #56 568 1,685 41 69 37.3% 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 Frederik Fetterlein Eduardo Masso
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
20 1991 1–1 50.0% #417 1,518 0 0 — — — — — — —
21 1992 1–4 20.0% #270 1,500 0 0 — — — — — — —
22 1993 0–2 0.0% #571 1,489 0 0 1986 0–4 0.0% #208 1,457 0 0
23 1994 0–1 0.0% #143 1,478 0 0 1987 1–2 33.3% #185 1,472 0 0
24 1995 10–12 45.5% #99 1,566 0 0 1988 13–14 48.1% #87 1,602 0 0
25 1996 7–19 26.9% #167 1,508 0 0 1989 4–10 28.6% #305 1,566 0 0
26 1997 6–8 42.9% #135 1,549 0 0 1990 5–6 45.5% #125 1,593 0 0
27 1998 0–1 0.0% #667 1,535 0 0 1991 15–19 44.1% #99 1,619 0 0
28 1999 1–1 50.0% #548 1,545 0 0 1992 3–14 17.6% #219 1,519 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 Frederik Fetterlein Eduardo Masso
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 %
20 1991 — — — — — — — — — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — —
21 1992 — — — — 1 3 4 25.0% — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
22 1993 — — — — 0 1 1 0.0% — — — — 0 1 1 0.0% 1986 — — — — 0 3 3 0.0% — — — — 0 1 1 0.0%
23 1994 — — — — — — — — — — — — 0 1 1 0.0% 1987 1 1 2 50.0% — — — — — — — — 0 1 1 0.0%
24 1995 3 2 5 60.0% 4 6 10 40.0% 1 2 3 33.3% 2 2 4 50.0% 1988 3 5 8 37.5% 4 4 8 50.0% 2 2 4 50.0% 4 3 7 57.1%
25 1996 5 7 12 41.7% 0 6 6 0.0% 2 2 4 50.0% 0 4 4 0.0% 1989 3 3 6 50.0% 0 3 3 0.0% — — — — 1 4 5 20.0%
26 1997 1 2 3 33.3% 2 3 5 40.0% 1 1 2 50.0% 2 2 4 50.0% 1990 — — — — 4 4 8 50.0% — — — — 1 2 3 33.3%
27 1998 — — — — — — — — — — — — 0 1 1 0.0% 1991 4 8 12 33.3% 10 8 18 55.6% 0 1 1 0.0% 1 2 3 33.3%
28 1999 — — — — — — — — — — — — 1 1 2 50.0% 1992 — — — — 0 10 10 0.0% 1 1 2 50.0% 2 3 5 40.0%
Career — 9 11 20 45.0% 7 19 26 26.9% 4 5 9 44.4% 6 14 20 30.0% — 11 17 28 39.3% 18 32 50 36.0% 3 4 7 42.9% 9 16 25 36.0%

Performance Progression by Age

Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 61/75 of Frederik Fetterlein's and 44/51 of Eduardo Masso's main draw matches. Sample is shown as matches with detailed serve and return statistics / total main draw matches. Bold green marks the stronger value when both stat samples contain at least 5 matches; lower is better for DFs/M.

Age Frederik Fetterlein Eduardo Masso
Yr Sample Aces/M DFs/M 1st Sv% 1st Pts% 2nd Pts% BP Saved% BP Conv% Svc Pts% Ret Pts% Yr Sample Aces/M DFs/M 1st Sv% 1st Pts% 2nd Pts% BP Saved% BP Conv% Svc Pts% Ret Pts%
20 1991 2/2 1.5 3.5 53.2% 76.2% 51.2% 55.0% 52.9% 63.9% 40.5% — —/— — — — — — — — — —
21 1992 3/5 2.7 5.0 57.2% 51.9% 46.1% 36.2% 48.2% 48.8% 46.1% — —/— — — — — — — — — —
22 1993 2/2 2.5 9.0 51.4% 73.1% 33.9% 52.1% 50.0% 53.8% 31.5% — —/— — — — — — — — — —
23 1994 1/1 7.0 8.0 55.2% 81.1% 36.7% 62.5% 16.7% 61.2% 32.4% — —/— — — — — — — — — —
24 1995 17/22 5.5 5.9 60.9% 69.8% 43.3% 47.5% 46.6% 59.5% 40.0% — —/— — — — — — — — — —
25 1996 20/26 3.4 5.6 58.3% 64.7% 37.2% 44.4% 35.4% 53.1% 35.2% — —/— — — — — — — — — —
26 1997 13/14 7.0 5.2 58.8% 71.1% 46.3% 64.8% 41.2% 61.0% 34.9% — —/— — — — — — — — — —
27 1998 1/1 13.0 5.0 48.9% 71.1% 63.8% 75.0% 100.0% 67.4% 32.0% 1991 28/34 0.6 2.6 67.3% 58.1% 47.4% 48.3% 47.5% 54.2% 40.4%
28 1999 2/2 6.5 6.5 51.5% 79.6% 42.3% 71.4% 71.4% 61.3% 32.0% 1992 16/17 1.1 1.5 76.6% 56.9% 44.8% 47.8% 41.6% 54.1% 39.4%
Career — 61/75 4.9 5.7 58.3% 68.4% 42.2% 51.5% 43.4% 57.4% 36.9% — 44/110 0.8 2.2 70.7% 57.7% 46.5% 48.1% 45.4% 54.1% 40.0%

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 Frederik Fetterlein Eduardo Masso
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
20 1991 1518 108.8 +1.44 -2.59 1.121 52.0% — — — 50.0% +0.17 1–1 — — -0.08 — — — — — — — — — — — — — — — —
21 1992 1501 99.8 -3.31 -0.08 0.902 47.3% — +22 — 33.3% -1.75 0–2 1–0 — +0.12 — — — — — — — — — — — — — — — —
22 1993 1489 109.5 +1.48 +1.70 0.681 43.3% — — — 20.0% -2.20 0–1 0–1 — -0.15 1986 1458 101.2 — — — — — +37 — 11.1% -2.67 0–1 0–1 — +0.24
23 1994 1479 100.7 +2.21 -1.57 0.836 46.1% — — — 0.0% -2.50 — 0–1 — +0.06 1987 1472 114.7 — — — — +65 — — 28.6% -1.29 1–0 0–1 — -0.13
24 1995 1567 119.3 -0.12 +0.16 0.988 49.7% +2 -29 +4 45.0% -0.23 4–2 (67%) 6–5 (55%) 105.1 +0.92 1988 1603 127.2 — — — — -10 -71 -28 44.1% -0.81 7–5 (58%) 6–4 (60%) 105.0 -0.57
25 1996 1509 122.8 -6.28 -1.14 0.751 44.5% +77 -51 +95 29.9% -1.33 5–5 (50%) 5–2 (71%) 104.0 -0.11 1989 1567 106.0 — — — — -3 -69 — 31.4% -1.89 2–2 (50%) 4–1 (80%) 103.3 +0.01
26 1997 1549 119.4 -0.77 -1.18 0.894 47.9% +42 -48 — 42.1% -0.71 3–2 (60%) 3–2 (60%) 103.4 +0.14 1990 1594 127.8 — — — — -26 -11 — 48.0% -0.32 2–1 (67%) 2–1 (67%) 104.6 -0.54
27 1998 1535 101.2 -1.53 -2.37 0.980 49.2% — — — 33.3% -0.67 0–1 0–1 — +0.10 1991 1619 127.8 -3.84 +1.27 0.882 47.4% -71 +55 — 41.3% -0.61 5–5 (50%) 3–7 (30%) 98.1 -0.97
28 1999 1545 105.8 -0.51 -0.47 0.829 48.7% — — — 50.0% +0.25 — — — +0.09 1992 1519 114.2 -3.66 -0.40 0.858 46.8% +31 +9 — 27.3% -1.34 1–3 (25%) 1–8 (11%) 93.9 +0.07
Career — 1589 123.2 -2.33 -0.69 0.865 47.3% +48 -30 +56 37.6% -0.85 13–14 (48%) 15–12 (56%) 105.0 +1.45 — 1685 127.2 -3.77 +0.66 0.873 47.2% -19 +7 -28 37.7% -1.01 18–17 (51%) 16–23 (41%) 101.4 -1.73

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.