H2H data updated: 2026-09-02 00:00 UTC
Oscar Hernandez holds a 1–0 lead over Daniel Koellerer in their ATP head-to-head. Across 1 main-draw meeting, Oscar Hernandez leads 1–0 on grass. Most recently, Oscar Hernandez won the 2009 Libéma Open first round 6-3 6-2.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Oscar Hernandez | 6-3 6-2 | Daniel Koellerer | Match data | Jun 17, 2009* | R32 | Libéma Open | ATP 250 | Grass |
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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oscar Hernandez | #1,759 | #48 | 1,168 | 1,743 | 65 | 125 | 34.2% | 0 | 0 | 0 | 0 | 0 | 0 |
| Daniel Koellerer | #385 | #55 | 904 | 1,653 | 19 | 34 | 35.8% | 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.
| Oscar Hernandez | Daniel Koellerer | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 2003 | 4–4 | 50.0% | #89 | 1,532 | 0 | 0 | 2003 | 0–1 | 0.0% | #180 | 1,475 | 0 | 0 |
| 2004 | 8–19 | 29.6% | #85 | 1,477 | 0 | 0 | 2004 | 2–1 | 66.7% | #205 | 1,521 | 0 | 0 |
| 2005 | 6–16 | 27.3% | #115 | 1,457 | 0 | 0 | 2005 | 1–2 | 33.3% | #147 | 1,508 | 0 | 0 |
| 2006 | 2–6 | 25.0% | #142 | 1,523 | 0 | 0 | 2007 | 1–1 | 50.0% | #165 | 1,540 | 0 | 0 |
| 2007 | 9–18 | 33.3% | #58 | 1,542 | 0 | 0 | 2008 | 1–2 | 33.3% | #125 | 1,525 | 0 | 0 |
| 2008 | 19–21 | 47.5% | #68 | 1,665 | 0 | 0 | 2009 | 10–17 | 37.0% | #71 | 1,616 | 0 | 0 |
| 2009 | 15–27 | 35.7% | #70 | 1,600 | 0 | 0 | 2010 | 4–10 | 28.6% | #272 | 1,541 | 0 | 0 |
| 2010 | 2–14 | 12.5% | #221 | 1,543 | 0 | 0 | — | — | — | — | — | — | — |
Rows are aligned in career order because complete birth data is unavailable. 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.
| Oscar Hernandez | Daniel Koellerer | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Yr | Hard | Clay | Grass | ||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | ||
| 2003 | — | — | — | — | 4 | 4 | 8 | 50.0% | — | — | — | — | 2003 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 2004 | 0 | 3 | 3 | 0.0% | 8 | 15 | 23 | 34.8% | 0 | 1 | 1 | 0.0% | 2004 | — | — | — | — | 2 | 1 | 3 | 66.7% | — | — | — | — |
| 2005 | 0 | 2 | 2 | 0.0% | 6 | 13 | 19 | 31.6% | 0 | 1 | 1 | 0.0% | 2005 | — | — | — | — | 1 | 2 | 3 | 33.3% | — | — | — | — |
| 2006 | 0 | 1 | 1 | 0.0% | 2 | 5 | 7 | 28.6% | — | — | — | — | 2007 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — |
| 2007 | 0 | 5 | 5 | 0.0% | 9 | 11 | 20 | 45.0% | 0 | 2 | 2 | 0.0% | 2008 | — | — | — | — | 1 | 2 | 3 | 33.3% | — | — | — | — |
| 2008 | 4 | 8 | 12 | 33.3% | 15 | 12 | 27 | 55.6% | 0 | 1 | 1 | 0.0% | 2009 | 4 | 7 | 11 | 36.4% | 6 | 7 | 13 | 46.2% | 0 | 3 | 3 | 0.0% |
| 2009 | 1 | 9 | 10 | 10.0% | 13 | 15 | 28 | 46.4% | 1 | 3 | 4 | 25.0% | 2010 | 3 | 5 | 8 | 37.5% | 1 | 4 | 5 | 20.0% | 0 | 1 | 1 | 0.0% |
| 2010 | 0 | 4 | 4 | 0.0% | 2 | 9 | 11 | 18.2% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 5 | 32 | 37 | 13.5% | 59 | 84 | 143 | 41.3% | 1 | 9 | 10 | 10.0% | Career | 7 | 12 | 19 | 36.8% | 12 | 18 | 30 | 40.0% | 0 | 4 | 4 | 0.0% |
Rows are aligned in career order because complete birth data is unavailable. Detailed serve and return statistics available for 188/190 of Oscar Hernandez's and 53/53 of Daniel Koellerer'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.
| Oscar Hernandez | Daniel Koellerer | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% |
| 2003 | 8/8 | 1.8 | 1.3 | 66.7% | 68.4% | 49.8% | 58.4% | 44.6% | 62.2% | 41.9% | 2003 | 1/1 | 1.0 | 2.0 | 67.9% | 58.3% | 35.3% | 42.9% | 50.0% | 50.9% | 33.9% |
| 2004 | 27/27 | 1.9 | 2.3 | 64.3% | 62.8% | 47.1% | 54.1% | 41.0% | 57.2% | 34.2% | 2004 | 3/3 | 0.3 | 1.3 | 71.5% | 61.8% | 55.8% | 55.4% | 39.9% | 60.0% | 44.5% |
| 2005 | 22/22 | 1.8 | 3.0 | 61.8% | 62.0% | 44.0% | 50.0% | 35.2% | 55.0% | 35.4% | 2005 | 3/3 | 2.7 | 1.0 | 74.7% | 65.9% | 55.9% | 62.0% | 32.5% | 62.8% | 36.5% |
| 2006 | 8/8 | 1.5 | 2.1 | 65.7% | 64.4% | 54.6% | 62.1% | 37.7% | 60.7% | 35.5% | 2007 | 2/2 | 1.5 | 3.5 | 52.0% | 68.9% | 52.1% | 16.7% | 46.8% | 60.8% | 49.5% |
| 2007 | 25/27 | 2.4 | 2.3 | 65.3% | 64.6% | 48.8% | 51.0% | 41.1% | 59.0% | 33.5% | 2008 | 3/3 | 1.0 | 2.3 | 70.0% | 59.2% | 54.6% | 36.7% | 39.4% | 57.0% | 35.1% |
| 2008 | 40/40 | 2.5 | 2.6 | 66.2% | 65.0% | 47.9% | 54.3% | 39.4% | 59.1% | 37.7% | 2009 | 27/27 | 1.8 | 1.9 | 69.3% | 64.3% | 49.6% | 56.9% | 46.2% | 59.8% | 35.7% |
| 2009 | 42/42 | 3.0 | 2.7 | 66.3% | 66.3% | 47.4% | 56.9% | 44.0% | 59.8% | 35.5% | 2010 | 14/14 | 1.5 | 1.9 | 65.6% | 62.1% | 42.1% | 48.7% | 50.1% | 54.4% | 33.2% |
| 2010 | 16/16 | 3.2 | 2.1 | 66.3% | 59.3% | 45.3% | 59.5% | 28.5% | 54.6% | 27.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | 188/190 | 2.4 | 2.5 | 65.3% | 64.2% | 47.5% | 54.9% | 39.6% | 58.3% | 35.1% | Career | 53/53 | 1.6 | 1.9 | 68.1% | 63.5% | 48.4% | 52.0% | 45.8% | 58.3% | 36.0% |
Rows are aligned in career order because complete birth data is unavailable. 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.
| Oscar Hernandez | Daniel Koellerer | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 2002 | 1483 | 98.7 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2003 | 1475 | 97.7 | -1.06 | -0.96 | 0.692 | 42.2% | — | — | — | 0.0% | -3.50 | — | — | — | +0.03 |
| 2003 | 1533 | 114.0 | -0.05 | -0.31 | 1.109 | 51.8% | — | +37 | — | 54.5% | 0.00 | 2–4 (33%) | 5–2 (71%) | — | +0.64 | 2004 | 1521 | 101.4 | -2.70 | +2.78 | 1.113 | 51.9% | — | +33 | — | 55.6% | +0.34 | 2–1 (67%) | — | — | +0.12 |
| 2004 | 1478 | 112.4 | -4.16 | -2.53 | 0.799 | 45.9% | +3 | +61 | — | 31.7% | -1.43 | 4–6 (40%) | 5–3 (63%) | — | +0.44 | 2005 | 1509 | 104.8 | -1.67 | -1.99 | 0.982 | 49.7% | — | +25 | — | 37.5% | -0.87 | 1–1 | 1–1 | — | -0.08 |
| 2005 | 1458 | 109.4 | -5.00 | -2.58 | 0.785 | 45.2% | — | +57 | — | 32.7% | -1.27 | 3–3 (50%) | 0–4 (0%) | — | +0.92 | 2006 | 1514 | 102.9 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2006 | 1523 | 115.9 | -1.42 | -0.10 | 0.904 | 48.6% | — | +36 | — | 36.4% | -0.64 | 0–1 | 1–1 | — | -0.45 | 2007 | 1541 | 111.9 | +1.61 | +0.92 | 1.265 | 55.0% | — | — | — | 60.0% | +0.80 | 0–1 | — | — | -0.18 |
| 2007 | 1543 | 127.8 | -3.14 | -1.94 | 0.817 | 46.3% | -139 | +109 | — | 38.1% | -0.84 | 3–3 (50%) | 7–4 (64%) | — | -0.04 | 2008 | 1526 | 112.0 | -1.73 | -1.29 | 0.817 | 45.5% | — | -17 | — | 33.3% | -1.67 | — | 2–1 (67%) | — | +0.19 |
| 2008 | 1666 | 132.5 | -2.92 | +0.23 | 0.921 | 48.5% | -197 | +76 | — | 48.5% | -0.34 | 6–6 (50%) | 8–5 (62%) | — | -0.24 | 2009 | 1616 | 130.9 | -2.40 | -1.25 | 0.889 | 47.8% | +30 | -5 | -138 | 41.3% | -0.69 | 5–6 (45%) | 5–2 (71%) | — | +0.63 |
| 2009 | 1601 | 130.7 | -2.74 | -1.31 | 0.883 | 47.8% | -121 | +120 | -173 | 41.6% | -0.84 | 3–11 (21%) | 5–4 (56%) | — | +0.12 | 2010 | 1542 | 108.7 | -5.84 | -2.45 | 0.729 | 44.1% | +60 | +21 | — | 33.3% | -1.33 | 2–1 (67%) | 2–1 (67%) | — | +0.57 |
| 2010 | 1544 | 115.4 | -5.30 | -5.94 | 0.612 | 42.3% | -112 | +90 | — | 17.1% | -2.29 | 1–1 | 2–3 (40%) | — | -0.44 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2014 | 1518 | 93.4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 1744 | 126.6 | -3.35 | -1.69 | 0.842 | 46.9% | -138 | +81 | -173 | 38.8% | -0.92 | 22–35 (39%) | 33–26 (56%) | 98.9 | +0.50 | Career | 1654 | 120.2 | -3.07 | -1.30 | 0.865 | 47.2% | +43 | +6 | -138 | 40.0% | -0.80 | 10–10 (50%) | 10–5 (67%) | 107.0 | +2.42 |
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 |
|---|---|---|---|---|---|
| Albert Montanes | 1 | 4 | 5 | Jan 20, 2010 | H2H |
| Paul-Henri Mathieu | 1 | 3 | 4 | Apr 8, 2010 | H2H |
| Ivo Minar | 3 | 1 | 4 | May 27, 2009 | H2H |
| Julien Benneteau | 1 | 3 | 4 | May 22, 2009 | H2H |
| Potito Starace | 0 | 3 | 3 | Apr 9, 2010 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Andrey Golubev | 1 | 1 | 2 | Apr 8, 2010 | H2H |
| Juan Carlos Ferrero | 0 | 2 | 2 | Mar 27, 2010 | H2H |
| Steve Darcis | 1 | 1 | 2 | Jul 16, 2009 | H2H |
| Julien Benneteau | 0 | 2 | 2 | Jun 10, 2009 | H2H |
| Nicolas Massu | 0 | 2 | 2 | May 27, 2009 | H2H |