H2H data updated: 2026-09-01 00:00 UTC

Ethan Quinn vs Thiago Monteiro

Compare the head-to-head record, career totals, season-by-season performance, and match log for Ethan Quinn vs Thiago Monteiro.

United States Age 22 Right-Handed 191 cm / 6'3"
H2H
0 0
0 main draw meetings
Brazil Age 32 Left-Handed 183 cm / 6'0"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Ethan Quinn #119 2-6 7-6(5) 7-6(0) Thiago Monteiro #94 Match data Apr 24, 2025* Q2 Q Madrid Open Masters 1000 Clay

1 qualifying meeting shown in the table; qualifying is excluded from the H2H score. 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
Ethan Quinn #61 #45 1,021 1,771 26 39 40.0% 0 0 0 0 0 0
Thiago Monteiro #280 #61 954 1,780 81 121 40.1% 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 Ethan Quinn Thiago Monteiro
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
19 2023 1–3 25.0% #344 1,494 0 0
20 2024 1–3 25.0% #202 1,467 0 0
21 2025 12–18 40.0% #70 1,716 0 0
22 2026 12–15 44.4% #61 1,737 0 0 2016 6–6 50.0% #82 1,594 0 0
23 2017 11–22 33.3% #124 1,623 0 0
24 2018 8–8 50.0% #120 1,644 0 0
25 2019 2–11 15.4% #89 1,642 0 0
26 2020 8–8 50.0% #84 1,687 0 0
27 2021 13–16 44.8% #89 1,613 0 0
28 2022 14–18 43.8% #71 1,680 0 0
29 2023 7–15 31.8% #122 1,603 0 0
30 2024 10–11 47.6% #109 1,656 0 0
31 2025 2–5 28.6% #197 1,561 0 0
32 2026 0–1 0.0% #280 1,559 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 Ethan Quinn Thiago Monteiro
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 %
19 2023 0 2 2 0.0% 1 1 2 50.0%
20 2024 0 2 2 0.0% 1 1 2 50.0%
21 2025 6 12 18 33.3% 4 4 8 50.0% 2 2 4 50.0%
22 2026 5 6 11 45.5% 1 6 7 14.3% 6 3 9 66.7% 2016 0 2 2 0.0% 6 4 10 60.0%
23 2017 2 8 10 20.0% 8 13 21 38.1% 1 1 2 50.0%
24 2018 1 1 2 50.0% 7 7 14 50.0%
25 2019 0 4 4 0.0% 2 6 8 25.0% 0 1 1 0.0%
26 2020 1 3 4 25.0% 7 5 12 58.3%
27 2021 8 7 15 53.3% 5 8 13 38.5% 0 1 1 0.0%
28 2022 7 9 16 43.8% 6 7 13 46.2% 1 2 3 33.3%
29 2023 1 4 5 20.0% 6 10 16 37.5% 0 1 1 0.0%
30 2024 0 3 3 0.0% 10 7 17 58.8% 0 1 1 0.0%
31 2025 0 1 1 0.0% 2 4 6 33.3%
32 2026 0 1 1 0.0%
Career 11 22 33 33.3% 5 10 15 33.3% 10 7 17 58.8% 20 42 62 32.3% 59 72 131 45.0% 2 7 9 22.2%

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 65/65 of Ethan Quinn's and 200/202 of Thiago Monteiro'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 Ethan Quinn Thiago Monteiro
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%
19 2023 4/4 5.5 2.3 61.4% 70.8% 45.0% 62.5% 42.5% 60.9% 38.5% —/—
20 2024 4/4 4.5 2.8 62.0% 70.6% 42.8% 67.9% 20.6% 59.8% 34.6% —/—
21 2025 30/30 6.6 3.2 61.9% 69.9% 49.5% 59.3% 35.9% 62.2% 33.9% —/—
22 2026 27/27 7.7 3.5 65.7% 75.0% 46.1% 46.6% 32.4% 65.7% 34.1% 2016 12/12 2.7 1.8 67.1% 68.7% 53.9% 51.1% 35.9% 63.6% 32.0%
23 —/— 2017 33/33 4.7 3.2 65.3% 69.2% 48.7% 53.7% 44.5% 62.1% 33.5%
24 —/— 2018 16/16 4.8 2.1 60.3% 73.4% 54.4% 63.7% 41.9% 66.1% 33.1%
25 —/— 2019 13/13 4.0 2.2 64.6% 69.2% 47.9% 46.3% 35.3% 61.2% 35.9%
26 —/— 2020 16/16 6.5 1.9 68.1% 72.8% 53.1% 66.9% 39.2% 66.7% 36.5%
27 —/— 2021 28/29 5.8 2.3 67.3% 72.3% 51.9% 67.3% 41.8% 65.5% 36.2%
28 —/— 2022 32/32 6.5 1.4 66.1% 73.0% 54.9% 62.9% 44.0% 66.8% 32.5%
29 —/— 2023 22/22 7.2 2.5 60.7% 71.7% 51.6% 56.8% 35.0% 64.1% 31.5%
30 —/— 2024 20/21 5.4 2.2 64.9% 73.3% 54.1% 61.4% 45.9% 66.7% 36.1%
31 —/— 2025 7/7 7.6 4.3 61.6% 72.7% 48.0% 54.3% 27.9% 63.1% 32.1%
32 —/— 2026 1/1 9.0 2.0 69.0% 74.0% 26.0% 60.0% 0.0% 59.0% 24.0%
Career 65/65 6.9 3.2 63.5% 72.1% 47.4% 54.8% 33.9% 63.4% 34.3% 200/202 5.6 2.3 64.9% 71.7% 51.9% 59.4% 40.6% 64.7% 33.9%

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 Ethan Quinn Thiago Monteiro
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
17 2011 1484 96.1
18 2022 1508 99.2
19 2023 1494 102.9 -0.81 -0.90 0.984 49.7% 22.2% -1.00 0–1 +0.41 2013 1470 98.3
20 2024 1468 108.5 -3.54 -0.68 0.860 47.1% 30.0% -0.40 1–1 0–3 (0%) +0.50 2014 1473 100.9
21 2025 1716 129.3 -1.66 -1.51 0.896 48.0% -47 -19 -56 38.9% -0.68 3–2 (60%) 6–7 (46%) +0.18 2015 1510 108.2
22 2026 1737 133.1 +0.51 -0.13 0.994 50.0% -15 -100 -14 45.5% -0.11 3–3 (50%) 5–12 (29%) -0.18 2016 1594 131.6 -0.11 -1.68 0.878 48.6% +103 50.0% +0.04 2–2 (50%) 1–3 (25%) +0.13
23 2017 1624 133.1 -1.63 -2.98 0.884 48.3% -101 +60 39.6% -0.76 5–11 (31%) 10–6 (63%) +0.52
24 2018 1645 127.0 +1.64 -2.08 0.975 50.2% +83 52.5% +0.13 5–5 (50%) 6–3 (67%) +0.01
25 2019 1643 121.8 -1.82 -0.72 0.925 48.1% -93 +69 21.9% -1.25 0–3 (0%) 1–3 (25%) -0.13
26 2020 1687 134.0 +1.32 -1.36 1.096 51.2% -94 +48 51.2% +0.21 2–2 (50%) 6–7 (46%) -0.23
27 2021 1614 130.7 +1.64 -1.28 1.048 50.9% +12 +37 47.9% -0.03 2–5 (29%) 6–6 (50%) +1.35
28 2022 1680 129.8 +2.13 -3.39 0.978 49.8% -31 -6 -48 43.8% -0.19 5–6 (45%) 5–8 (38%) -0.40
29 2023 1604 127.0 +0.05 -3.69 0.877 48.0% +4 +31 38.7% -0.68 5–8 (38%) 7–7 (50%) -0.59
30 2024 1657 132.8 +2.23 -0.04 1.083 51.4% -110 +149 47.1% 0.00 2–4 (33%) 2–5 (29%) -0.52
31 2025 1562 114.0 -0.35 -4.19 0.872 48.0% +103 44.0% -0.72 2–5 (29%) 5–3 (63%) +0.78
32 2026 1560 105.2 +0.23 +0.05 0.585 42.0% 0.0% -3.00 0–1 -0.05
Career 1771 128.3 -0.82 -0.85 0.937 48.9% -35 -57 -27 40.1% -0.44 7–6 (54%) 11–23 (32%) 96.2 +1.40 1780 133.3 +0.63 -2.19 0.962 49.5% -42 +66 -48 43.5% -0.34 30–51 (37%) 49–52 (49%) 96.4 +0.43

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.