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

Learner Tien vs Stefanos Tsitsipas H2H: 1-0

Learner Tien holds a 1–0 lead over Stefanos Tsitsipas in their ATP head-to-head. Across 1 main-draw meeting, Learner Tien leads 1–0 on clay. Most recently, Learner Tien won the 2026 Geneva Open second round 7-6(4) 7-6(2).

United States Age 20 Left-Handed 180 cm / 5'11"
H2H
1 – 0
1 main-draw meetings
Greece Age 28 Right-Handed 193 cm / 6'4"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Learner Tien #20 7-6(4) 7-6(2) Stefanos Tsitsipas #82 Match data May 20, 2026 R16 Geneva Open ATP 250 Clay

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
Learner Tien #17 #12 2,755 1,974 65 45 59.1% 0 0 0 0 2 2
Stefanos Tsitsipas #43 #3 8,350 2,231 370 197 65.3% 0 3 1 1 8 13

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 Learner Tien Stefanos Tsitsipas
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 2022 0–1 0.0% — 1,495 0 0 — — — — — — —
17 2023 0–1 0.0% #452 1,479 0 0 — — — — — — —
18 2024 3–2 60.0% #122 1,567 0 0 2017 4–10 28.6% #91 1,792 0 0
19 2025 32–23 58.2% #28 1,910 0 1 2018 41–27 60.3% #15 1,984 0 1
20 2026 30–18 62.5% #17 1,889 0 2 2019 54–25 68.4% #6 2,110 0 4
21 — — — — — — — 2020 27–12 69.2% #6 2,071 0 5
22 — — — — — — — 2021 53–19 73.6% #4 2,029 0 7
23 — — — — — — — 2022 57–22 72.2% #4 2,046 0 9
24 — — — — — — — 2023 45–23 66.2% #6 1,971 0 10
25 — — — — — — — 2024 42–21 66.7% #11 1,946 0 11
26 — — — — — — — 2025 20–16 55.6% #36 1,805 0 12
27 — — — — — — — 2026 27–22 55.1% #43 1,905 0 13

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 Learner Tien Stefanos Tsitsipas
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 %
16 2022 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
17 2023 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
18 2024 3 2 5 60.0% — — — — — — — — 2017 4 7 11 36.4% 0 2 2 0.0% 0 1 1 0.0%
19 2025 27 14 41 65.9% 1 6 7 14.3% 4 3 7 57.1% 2018 24 18 42 57.1% 11 6 17 64.7% 6 3 9 66.7%
20 2026 19 12 31 61.3% 9 4 13 69.2% 2 2 4 50.0% 2019 36 17 53 67.9% 16 5 21 76.2% 2 3 5 40.0%
21 — — — — — — — — — — — — — 2020 18 9 27 66.7% 9 3 12 75.0% — — — —
22 — — — — — — — — — — — — — 2021 30 13 43 69.8% 23 5 28 82.1% 0 1 1 0.0%
23 — — — — — — — — — — — — — 2022 32 15 47 68.1% 17 4 21 81.0% 8 3 11 72.7%
24 — — — — — — — — — — — — — 2023 24 14 38 63.2% 17 5 22 77.3% 4 4 8 50.0%
25 — — — — — — — — — — — — — 2024 18 13 31 58.1% 22 6 28 78.6% 2 2 4 50.0%
26 — — — — — — — — — — — — — 2025 12 9 21 57.1% 7 5 12 58.3% 1 2 3 33.3%
27 — — — — — — — — — — — — — 2026 16 14 30 53.3% 10 6 16 62.5% 1 2 3 33.3%
Career — 49 30 79 62.0% 10 10 20 50.0% 6 5 11 54.5% — 214 129 343 62.4% 132 47 179 73.7% 24 21 45 53.3%

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 105/111 of Learner Tien's and 556/568 of Stefanos Tsitsipas'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 Learner Tien Stefanos Tsitsipas
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%
16 2022 1/1 5.0 4.0 66.7% 66.2% 37.8% 50.0% 25.0% 56.8% 32.0% — —/— — — — — — — — — —
17 2023 1/1 4.0 6.0 61.2% 53.5% 37.8% 68.0% 50.0% 47.4% 33.8% — —/— — — — — — — — — —
18 2024 5/5 2.8 1.8 68.7% 60.9% 59.0% 63.2% 34.4% 60.1% 39.8% 2017 14/14 7.6 2.1 59.5% 76.3% 47.9% 58.3% 44.6% 64.4% 31.5%
19 2025 50/55 3.9 4.3 60.2% 68.3% 51.3% 62.8% 40.7% 61.4% 36.6% 2018 68/68 6.7 2.6 57.9% 75.4% 54.4% 63.4% 48.9% 66.7% 35.8%
20 2026 48/49 6.0 4.2 63.2% 70.5% 51.0% 52.1% 42.5% 63.3% 38.4% 2019 78/79 7.1 2.2 64.2% 76.8% 52.9% 59.2% 39.3% 68.3% 35.8%
21 — —/— — — — — — — — — — 2020 38/39 7.3 2.1 64.3% 77.9% 58.7% 61.5% 39.5% 71.0% 38.0%
22 — —/— — — — — — — — — — 2021 68/72 6.9 2.3 62.7% 77.2% 57.7% 61.3% 46.4% 69.8% 39.4%
23 — —/— — — — — — — — — — 2022 79/79 7.6 2.1 63.4% 77.1% 56.0% 60.3% 42.8% 69.6% 36.3%
24 — —/— — — — — — — — — — 2023 67/68 7.4 2.2 63.4% 78.4% 54.8% 59.7% 41.1% 69.9% 35.4%
25 — —/— — — — — — — — — — 2024 59/63 7.0 3.1 60.6% 74.1% 55.6% 65.3% 43.5% 66.9% 35.7%
26 — —/— — — — — — — — — — 2025 36/36 6.6 3.3 59.2% 75.2% 53.7% 53.0% 35.6% 66.4% 36.1%
27 — —/— — — — — — — — — — 2026 49/50 7.8 2.5 63.1% 76.5% 52.3% 52.3% 30.4% 68.0% 34.1%
Career — 105/111 4.8 4.2 62.0% 68.8% 51.3% 57.9% 41.2% 62.0% 37.5% — 556/568 7.2 2.4 62.1% 76.6% 54.9% 60.0% 41.6% 68.5% 36.2%

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 Learner Tien Stefanos Tsitsipas
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
16 2022 1496 106.9 +1.66 0.00 0.741 44.9% — — — 25.0% -2.00 — — — -0.09 — — — — — — — — — — — — — — — —
17 2023 1480 110.3 -1.68 +2.67 0.642 41.8% — — — 0.0% -3.67 — — — -0.10 2016 1515 105.9 — — — — — — — — — — — — —
18 2024 1567 118.8 -1.17 +0.87 0.996 49.6% +23 — — 50.0% -0.07 2–0 1–1 — -0.03 2017 1792 129.7 +0.10 -1.10 0.886 47.9% -27 — — 25.8% -1.16 1–2 (33%) 3–4 (43%) 99.4 -0.80
19 2025 1911 146.7 -1.79 +0.93 0.946 49.5% +10 -354 -269 54.1% +0.09 10–6 (63%) 17–10 (63%) 110.6 -0.50 2018 1985 162.4 +3.10 +0.06 1.075 51.4% -47 -144 -212 55.8% +0.48 15–9 (63%) 16–20 (44%) 105.2 -1.82
20 2026 1890 153.1 -0.44 +2.91 1.047 50.8% +33 -139 -246 56.9% +0.34 13–6 (68%) 19–8 (70%) 112.3 +1.29 2019 2111 170.5 +4.99 +1.26 1.131 52.0% +5 -96 -381 64.0% +0.68 14–13 (52%) 32–13 (71%) 108.9 -0.82
21 — — — — — — — — — — — — — — — — 2020 2071 167.4 +6.35 +2.58 1.312 53.8% -32 -4 — 65.7% +1.01 6–8 (43%) 12–8 (60%) 97.5 -1.16
22 — — — — — — — — — — — — — — — — 2021 2029 171.6 +6.41 +3.62 1.303 54.4% -28 +197 — 67.7% +1.32 15–12 (56%) 16–13 (55%) 98.6 -1.26
23 — — — — — — — — — — — — — — — — 2022 2046 169.2 +6.20 +0.93 1.193 52.8% -1 +212 -173 64.9% +0.84 19–7 (73%) 27–16 (63%) 109.9 +1.36
24 — — — — — — — — — — — — — — — — 2023 1972 163.7 +5.65 +0.60 1.176 52.5% +23 +249 -97 63.6% +0.86 10–8 (56%) 24–20 (55%) 97.6 +0.38
25 — — — — — — — — — — — — — — — — 2024 1947 162.0 +3.03 +0.49 1.080 51.8% -37 +265 -112 61.8% +0.87 10–4 (71%) 18–14 (56%) 101.6 +0.52
26 — — — — — — — — — — — — — — — — 2025 1805 146.8 +1.21 +0.54 1.075 51.0% +34 +282 -24 55.4% +0.40 7–6 (54%) 10–7 (59%) 98.6 +1.62
27 — — — — — — — — — — — — — — — — 2026 1905 151.0 +2.80 -0.82 1.063 50.7% +5 +94 -145 52.0% +0.25 7–5 (58%) 12–20 (38%) 92.5 -1.55
Career — 1974 149.3 -1.11 +1.84 0.987 50.0% +20 -214 -261 54.3% +0.13 25–12 (68%) 37–19 (66%) 118.2 +0.52 — 2231 167.8 +4.51 +0.99 1.146 52.2% -10 +131 -173 61.1% +0.73 104–74 (58%) 170–135 (56%) 103.0 -0.63

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.