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

Thiago Monteiro vs Bradley Klahn H2H: 0-1

Bradley Klahn holds a 1–0 lead over Thiago Monteiro in their ATP head-to-head. Across 1 main-draw meeting, Bradley Klahn leads 1–0 on hard courts. Most recently, Bradley Klahn won the 2019 US Open first round 6-3 6-2 6-3.

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

Thiago Monteiro
Brazil Age 32 Left-Handed 183 cm / 6'0"
H2H
0 – 1
1 main draw meetings
Bradley Klahn
USA Age 36 Left-Handed 183 cm / 6'0"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Bradley Klahn #108 6-3 6-2 6-3 Thiago Monteiro #101 Match data Aug 28, 2019* R128 US Open Grand Slam 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
Thiago Monteiro #280 #61 954 1,780 81 121 40.1% 0 0 0 0 0 0
Bradley Klahn #1,096 #63 731 1,734 13 43 23.2% 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 Thiago Monteiro Bradley Klahn
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
19 — — — — — — — 2010 0–1 0.0% — 1,499 0 0
20 — — — — — — — 2011 0–1 0.0% — 1,525 0 0
21 — — — — — — — 2012 1–2 33.3% #248 1,638 0 0
22 2016 6–6 50.0% #82 1,594 0 0 2013 1–3 25.0% #97 1,602 0 0
23 2017 11–22 33.3% #124 1,623 0 0 2014 2–11 15.4% #148 1,549 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 2018 5–8 38.5% #76 1,708 0 0
28 2022 14–18 43.8% #71 1,680 0 0 2019 4–14 22.2% #135 1,645 0 0
29 2023 7–15 31.8% #122 1,603 0 0 2020 0–1 0.0% #149 1,570 0 0
30 2024 10–11 47.6% #109 1,656 0 0 — — — — — — —
31 2025 2–5 28.6% #197 1,561 0 0 2022 0–1 0.0% #873 1,485 0 0
32 2026 0–1 0.0% #280 1,559 0 0 2023 0–1 0.0% #877 1,479 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 Thiago Monteiro Bradley Klahn
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 — — — — — — — — — — — — — 2010 0 1 1 0.0% — — — — — — — —
20 — — — — — — — — — — — — — 2011 0 1 1 0.0% — — — — — — — —
21 — — — — — — — — — — — — — 2012 1 2 3 33.3% — — — — — — — —
22 2016 0 2 2 0.0% 6 4 10 60.0% — — — — 2013 1 2 3 33.3% 0 1 1 0.0% — — — —
23 2017 2 8 10 20.0% 8 13 21 38.1% 1 1 2 50.0% 2014 2 7 9 22.2% 0 1 1 0.0% 0 3 3 0.0%
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% 2018 4 7 11 36.4% — — — — 1 1 2 50.0%
28 2022 7 9 16 43.8% 6 7 13 46.2% 1 2 3 33.3% 2019 3 9 12 25.0% 0 2 2 0.0% 1 3 4 25.0%
29 2023 1 4 5 20.0% 6 10 16 37.5% 0 1 1 0.0% 2020 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% — — — — 2022 0 1 1 0.0% — — — — — — — —
32 2026 — — — — 0 1 1 0.0% — — — — 2023 0 1 1 0.0% — — — — — — — —
Career — 20 42 62 32.3% 59 72 131 45.0% 2 7 9 22.2% — 11 32 43 25.6% 0 4 4 0.0% 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 200/202 of Thiago Monteiro's and 56/56 of Bradley Klahn'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 Thiago Monteiro Bradley Klahn
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 — —/— — — — — — — — — — 2010 1/1 6.0 7.0 69.5% 69.2% 40.0% 56.3% 27.3% 60.3% 31.3%
20 — —/— — — — — — — — — — 2011 1/1 1.0 4.0 58.0% 62.1% 42.9% 40.0% 0.0% 54.0% 22.4%
21 — —/— — — — — — — — — — 2012 3/3 7.3 4.3 64.4% 62.3% 41.6% 60.4% 44.4% 55.0% 37.4%
22 2016 12/12 2.7 1.8 67.1% 68.7% 53.9% 51.1% 35.9% 63.6% 32.0% 2013 4/4 8.0 2.3 66.9% 73.3% 51.5% 25.0% 33.5% 65.9% 33.7%
23 2017 33/33 4.7 3.2 65.3% 69.2% 48.7% 53.7% 44.5% 62.1% 33.5% 2014 13/13 6.7 5.5 58.6% 66.8% 46.4% 53.4% 33.7% 58.4% 32.0%
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% 2018 13/13 9.2 4.5 59.8% 75.5% 53.9% 50.6% 38.6% 66.9% 28.2%
28 2022 32/32 6.5 1.4 66.1% 73.0% 54.9% 62.9% 44.0% 66.8% 32.5% 2019 18/18 8.8 4.6 59.5% 72.2% 52.6% 60.3% 34.4% 64.4% 29.4%
29 2023 22/22 7.2 2.5 60.7% 71.7% 51.6% 56.8% 35.0% 64.1% 31.5% 2020 1/1 10.0 5.0 62.9% 63.0% 44.2% 64.7% 50.0% 56.0% 26.1%
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% 2022 1/1 6.0 3.0 52.2% 58.3% 54.5% 50.0% — 56.5% 20.0%
32 2026 1/1 9.0 2.0 69.0% 74.0% 26.0% 60.0% 0.0% 59.0% 24.0% 2023 1/1 4.0 5.0 68.9% 66.7% 31.6% 66.7% 0.0% 55.7% 23.5%
Career — 200/202 5.6 2.3 64.9% 71.7% 51.9% 59.4% 40.6% 64.7% 33.9% — 56/56 7.9 4.6 60.4% 70.5% 49.9% 53.5% 34.0% 62.5% 30.1%

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 Thiago Monteiro Bradley Klahn
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 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
19 2013 1470 98.3 — — — — — — — — — — — — — 2010 1499 108.4 -1.52 +3.65 0.787 46.9% — — — 25.0% -1.25 — — — -0.11
20 2014 1473 100.9 — — — — — — — — — — — — — 2011 1525 112.8 +0.69 +0.59 0.488 38.4% — — — 0.0% -3.50 — — — -0.19
21 2015 1510 108.2 — — — — — — — — — — — — — 2012 1639 117.2 -2.52 -0.18 0.831 46.8% +35 — — 36.4% -1.18 1–1 — — +0.09
22 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 2013 1603 112.5 -1.91 -0.65 0.991 48.3% +55 — — 33.3% -0.67 — 2–3 (40%) — +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 2014 1550 122.4 -3.31 -2.26 0.770 45.5% +73 — -31 30.0% -1.58 2–4 (33%) 6–2 (75%) — -0.32
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 2015 1548 102.5 — — — — — — — — — — — — —
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 2017 1549 103.9 — — — — — — — — — — — — —
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 2018 1709 132.3 +1.07 -2.48 0.852 48.3% -22 — — 38.2% -0.56 2–2 (50%) 5–5 (50%) — -0.18
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 2019 1646 123.8 -0.08 -4.65 0.825 47.6% +21 — -93 28.3% -1.00 1–2 (33%) 4–6 (40%) — 0.00
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 2020 1570 96.9 -1.18 -3.05 0.594 43.1% — — — 25.0% -2.50 — — — +0.34
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 2022 1485 106.5 -0.77 -0.68 0.460 42.1% — — — 0.0% -3.00 — — — -0.01
32 2026 1560 105.2 +0.21 +0.07 0.585 42.0% — — — 0.0% -3.00 — 0–1 — -0.05 2023 1480 104.5 +0.15 -2.16 0.532 41.1% — — — 0.0% -3.00 — — — +0.02
Career — 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 — 1734 124.5 -0.86 -2.68 0.801 46.8% +25 — -66 30.6% -1.17 6–9 (40%) 17–16 (52%) 101.2 -0.41

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.