H2H data updated: 2026-08-31 00:00 UTC
Compare the head-to-head record, career totals, season-by-season performance, and match log for Vitaliy Sachko vs Gauthier Onclin.
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| Winner | Score | Loser | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Vitaliy Sachko | 7-5 7-5 | Gauthier Onclin | Match data | Aug 25, 2026 | Q1 | US Open | Grand Slam | Hard |
1 qualifying meeting shown in the table; qualifying is excluded from the H2H score. 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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Vitaliy Sachko | #188 | #156 | 389 | 1,543 | 3 | 8 | 27.3% | 0 | 0 | 0 | 0 | 0 | 0 |
| Gauthier Onclin | #158 | #158 | 355 | 1,573 | 1 | 2 | 33.3% | 0 | 0 | 0 | 0 | 0 | 0 |
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 | Vitaliy Sachko | Gauthier Onclin | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 22 | 2020 | 0–1 | 0.0% | #400 | 1,519 | 0 | 0 | — | — | — | — | — | — | — |
| 24 | 2022 | 0–1 | 0.0% | #337 | 1,480 | 0 | 0 | 2025 | 0–1 | 0.0% | #268 | 1,534 | 0 | 0 |
| 25 | 2023 | 0–2 | 0.0% | #169 | 1,506 | 0 | 0 | 2026 | 1–1 | 50.0% | #158 | 1,537 | 0 | 0 |
| 26 | 2024 | 0–1 | 0.0% | #387 | 1,481 | 0 | 0 | — | — | — | — | — | — | — |
| 27 | 2025 | 3–2 | 60.0% | #169 | 1,517 | 0 | 0 | — | — | — | — | — | — | — |
| 28 | 2026 | 0–1 | 0.0% | #188 | 1,504 | 0 | 0 | — | — | — | — | — | — | — |
Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 7/11 of Vitaliy Sachko's and 3/3 of Gauthier Onclin'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 | Vitaliy Sachko | Gauthier Onclin | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | |
| 22 | 2020 | 1/1 | 3.0 | 4.0 | 71.3% | 56.1% | 34.8% | 33.3% | 66.7% | 50.0% | 40.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| 24 | 2022 | 1/1 | 6.0 | 6.0 | 60.7% | 66.7% | 51.5% | 71.4% | 33.3% | 60.7% | 31.0% | 2025 | 1/1 | 2.0 | 4.0 | 69.0% | 65.0% | 53.0% | 43.0% | 23.0% | 61.0% | 38.0% |
| 25 | 2023 | 2/2 | 3.5 | 1.0 | 61.6% | 67.7% | 46.1% | 65.9% | 22.5% | 59.7% | 32.8% | 2026 | 2/2 | 2.0 | 3.5 | 59.0% | 76.5% | 45.0% | 73.5% | 50.0% | 64.0% | 35.0% |
| 26 | 2024 | 1/1 | 3.0 | 2.0 | 66.7% | 77.8% | 50.0% | 33.3% | 0.0% | 68.5% | 29.5% | — | —/— | — | — | — | — | — | — | — | — | — |
| 27 | 2025 | 1/5 | 1.0 | 4.0 | 58.0% | 55.0% | 36.0% | 65.0% | 45.0% | 47.0% | 46.0% | — | —/— | — | — | — | — | — | — | — | — | — |
| 28 | 2026 | 1/1 | 2.0 | 0.0 | 44.0% | 55.0% | 44.0% | 56.0% | 0.0% | 49.0% | 31.0% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 7/11 | 3.1 | 2.6 | 60.5% | 63.7% | 44.1% | 55.8% | 27.1% | 56.4% | 34.8% | — | 3/3 | 2.0 | 3.7 | 62.3% | 72.7% | 47.7% | 63.3% | 41.0% | 63.0% | 36.0% |
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 | Vitaliy Sachko | Gauthier Onclin | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Schedule | |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2021 | 1491 | 101.8 | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2020 | 1519 | 121.1 | -0.22 | +2.72 | 0.813 | 45.8% | — | — | — | 0.0% | -2.00 | — | — | -0.13 | 2023 | 1509 | 105.5 | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2021 | 1496 | 96.7 | — | — | — | — | — | — | — | — | — | — | — | — | 2024 | 1495 | 100.5 | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 2022 | 1481 | 102.1 | -1.40 | -2.52 | 0.789 | 47.1% | — | — | — | 0.0% | -1.50 | — | 0–1 | -0.04 | 2025 | 1534 | 109.9 | -6.61 | +3.95 | 0.974 | 48.0% | — | — | — | 25.0% | -1.25 | — | 0–1 | -0.03 |
| 25 | 2023 | 1507 | 108.8 | -0.03 | -4.83 | 0.816 | 46.1% | — | — | — | 20.0% | -1.80 | 0–1 | — | -0.19 | 2026 | 1538 | 105.0 | -3.51 | +0.68 | 0.972 | 49.0% | — | — | — | 50.0% | -0.25 | — | 1–1 | -0.01 |
| 26 | 2024 | 1482 | 104.9 | -1.07 | -0.03 | 0.937 | 47.8% | — | — | — | 0.0% | -2.00 | — | — | +0.11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2025 | 1517 | 112.9 | -2.82 | +1.40 | 0.868 | 47.0% | +68 | — | — | 53.8% | -0.54 | 2–1 (67%) | 1–0 | -0.02 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2026 | 1505 | 99.9 | -3.94 | -1.78 | 0.608 | 40.0% | — | — | — | 0.0% | -4.50 | — | — | 0.00 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1543 | 110.2 | -1.36 | -1.41 | 0.799 | 45.7% | +68 | — | — | 30.8% | -1.39 | 2–2 (50%) | 1–1 | -2.45 | — | 1573 | 108.7 | -4.54 | +1.77 | 0.973 | 48.7% | — | — | — | 37.5% | -0.75 | — | 1–2 (33%) | -1.33 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Gabriel Diallo | 0 | 1 | 1 | Apr 13, 2026 | H2H |
| Learner Tien | 0 | 1 | 1 | Nov 7, 2025 | H2H |
| Clement Tabur | 1 | 0 | 1 | Nov 7, 2025 | H2H |
| Alexander Bublik | 1 | 0 | 1 | Nov 6, 2025 | H2H |
| Giovanni Mpetshi Perricard | 1 | 0 | 1 | Nov 5, 2025 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Giovanni Mpetshi Perricard | 0 | 1 | 1 | Jun 10, 2026 | H2H |
| Fabian Marozsan | 1 | 0 | 1 | Jun 8, 2026 | H2H |
| Reilly Opelka | 0 | 1 | 1 | Jan 14, 2025 | H2H |