H2H data updated: 2026-09-06 00:00 UTC
Juan Martin del Potro holds a 1–0 lead over Daniel Koellerer in their ATP head-to-head. Across 1 main-draw meeting, Juan Martin del Potro leads 1–0 on hard courts. Most recently, Juan Martin del Potro won the 2009 US Open third round 6-1 3-6 6-3 6-3.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Juan Martin del Potro | 6-1 3-6 6-3 6-3 | Daniel Koellerer | Match data | Sep 6, 2009* | R32 | US Open | Grand Slam | Hard |
| Juan Martin del Potro | 6-3 6-2 | Daniel Koellerer | Match data | Aug 29, 2006* | Q3 | US Open | Grand Slam | Hard |
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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Juan Martin del Potro | #761 | #3 | 6,825 | 2,271 | 426 | 174 | 71.0% | 1 | 1 | 0 | 9 | 11 | 22 |
| 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.
| Juan Martin del Potro | Daniel Koellerer | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 2006 | 10–12 | 45.5% | #92 | 1,634 | 0 | 0 | 2003 | 0–1 | 0.0% | #180 | 1,475 | 0 | 0 |
| 2007 | 26–24 | 52.0% | #44 | 1,785 | 0 | 0 | 2004 | 2–1 | 66.7% | #205 | 1,521 | 0 | 0 |
| 2008 | 44–16 | 73.3% | #9 | 1,990 | 0 | 4 | 2005 | 1–2 | 33.3% | #147 | 1,508 | 0 | 0 |
| 2009 | 51–16 | 76.1% | #5 | 2,199 | 1 | 7 | 2007 | 1–1 | 50.0% | #165 | 1,540 | 0 | 0 |
| 2010 | 3–3 | 50.0% | #258 | 2,118 | 1 | 7 | 2008 | 1–2 | 33.3% | #125 | 1,525 | 0 | 0 |
| 2011 | 46–17 | 73.0% | #11 | 2,045 | 1 | 9 | 2009 | 10–17 | 37.0% | #71 | 1,616 | 0 | 0 |
| 2012 | 62–17 | 78.5% | #7 | 2,228 | 1 | 13 | 2010 | 4–10 | 28.6% | #272 | 1,541 | 0 | 0 |
| 2013 | 52–16 | 76.5% | #5 | 2,208 | 1 | 17 | — | — | — | — | — | — | — |
| 2014 | 7–3 | 70.0% | #137 | 2,138 | 1 | 18 | — | — | — | — | — | — | — |
| 2015 | 2–2 | 50.0% | #590 | 2,091 | 1 | 18 | — | — | — | — | — | — | — |
| 2016 | 29–12 | 70.7% | #38 | 2,151 | 1 | 19 | — | — | — | — | — | — | — |
| 2017 | 38–17 | 69.1% | #11 | 2,174 | 1 | 20 | — | — | — | — | — | — | — |
| 2018 | 48–13 | 78.7% | #5 | 2,189 | 1 | 22 | — | — | — | — | — | — | — |
| 2019 | 8–5 | 61.5% | #122 | 2,123 | 1 | 22 | — | — | — | — | — | — | — |
| 2022 | 0–1 | 0.0% | #761 | 2,093 | 1 | 22 | — | — | — | — | — | — | — |
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.
| Juan Martin del Potro | Daniel Koellerer | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Carpet | Yr | Hard | Clay | Grass | Carpet | ||||||||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | ||
| 2006 | 3 | 4 | 7 | 42.9% | 5 | 7 | 12 | 41.7% | — | — | — | — | 2 | 1 | 3 | 66.7% | 2003 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 2007 | 21 | 19 | 40 | 52.5% | 1 | 2 | 3 | 33.3% | 4 | 3 | 7 | 57.1% | — | — | — | — | 2004 | — | — | — | — | 2 | 1 | 3 | 66.7% | — | — | — | — | — | — | — | — |
| 2008 | 27 | 11 | 38 | 71.1% | 13 | 3 | 16 | 81.3% | 4 | 2 | 6 | 66.7% | — | — | — | — | 2005 | — | — | — | — | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — |
| 2009 | 40 | 11 | 51 | 78.4% | 10 | 4 | 14 | 71.4% | 1 | 1 | 2 | 50.0% | — | — | — | — | 2007 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — |
| 2010 | 3 | 3 | 6 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | 2008 | — | — | — | — | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — |
| 2011 | 32 | 13 | 45 | 71.1% | 9 | 2 | 11 | 81.8% | 5 | 2 | 7 | 71.4% | — | — | — | — | 2009 | 4 | 7 | 11 | 36.4% | 6 | 7 | 13 | 46.2% | 0 | 3 | 3 | 0.0% | — | — | — | — |
| 2012 | 40 | 12 | 52 | 76.9% | 14 | 3 | 17 | 82.4% | 8 | 2 | 10 | 80.0% | — | — | — | — | 2010 | 3 | 5 | 8 | 37.5% | 1 | 4 | 5 | 20.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 2013 | 43 | 12 | 55 | 78.2% | 2 | 2 | 4 | 50.0% | 7 | 2 | 9 | 77.8% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2014 | 7 | 3 | 10 | 70.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2015 | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2016 | 21 | 7 | 28 | 75.0% | 3 | 2 | 5 | 60.0% | 5 | 3 | 8 | 62.5% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2017 | 30 | 12 | 42 | 71.4% | 7 | 4 | 11 | 63.6% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2018 | 37 | 9 | 46 | 80.4% | 7 | 3 | 10 | 70.0% | 4 | 1 | 5 | 80.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2019 | 2 | 1 | 3 | 66.7% | 5 | 3 | 8 | 62.5% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2022 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 308 | 119 | 427 | 72.1% | 76 | 36 | 112 | 67.9% | 40 | 18 | 58 | 69.0% | 2 | 1 | 3 | 66.7% | 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 579/600 of Juan Martin del Potro'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.
| Juan Martin del Potro | 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% |
| 2006 | 22/22 | 2.2 | 2.6 | 72.3% | 64.5% | 50.1% | 58.2% | 45.1% | 60.5% | 39.7% | 2003 | 1/1 | 1.0 | 2.0 | 67.9% | 58.3% | 35.3% | 42.9% | 50.0% | 50.9% | 33.9% |
| 2007 | 49/50 | 6.4 | 2.7 | 62.8% | 71.8% | 53.5% | 58.3% | 47.0% | 64.6% | 38.9% | 2004 | 3/3 | 0.3 | 1.3 | 71.5% | 61.8% | 55.8% | 55.4% | 39.9% | 60.0% | 44.5% |
| 2008 | 59/60 | 5.0 | 2.5 | 61.7% | 74.7% | 53.8% | 62.3% | 48.2% | 66.5% | 41.6% | 2005 | 3/3 | 2.7 | 1.0 | 74.7% | 65.9% | 55.9% | 62.0% | 32.5% | 62.8% | 36.5% |
| 2009 | 66/67 | 8.3 | 2.6 | 62.0% | 74.4% | 53.5% | 63.3% | 40.9% | 66.4% | 39.7% | 2007 | 2/2 | 1.5 | 3.5 | 52.0% | 68.9% | 52.1% | 16.7% | 46.8% | 60.8% | 49.5% |
| 2010 | 6/6 | 15.2 | 4.7 | 58.4% | 69.0% | 44.1% | 58.8% | 33.1% | 59.1% | 36.7% | 2008 | 3/3 | 1.0 | 2.3 | 70.0% | 59.2% | 54.6% | 36.7% | 39.4% | 57.0% | 35.1% |
| 2011 | 61/63 | 7.8 | 2.0 | 62.2% | 77.3% | 57.3% | 63.5% | 48.4% | 69.6% | 39.8% | 2009 | 27/27 | 1.8 | 1.9 | 69.3% | 64.3% | 49.6% | 56.9% | 46.2% | 59.8% | 35.7% |
| 2012 | 73/79 | 7.7 | 2.1 | 64.8% | 75.8% | 55.0% | 66.4% | 43.6% | 68.2% | 39.6% | 2010 | 14/14 | 1.5 | 1.9 | 65.6% | 62.1% | 42.1% | 48.7% | 50.1% | 54.4% | 33.2% |
| 2013 | 67/68 | 7.1 | 2.1 | 65.2% | 75.7% | 54.9% | 65.6% | 43.4% | 68.3% | 38.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| 2014 | 10/10 | 11.1 | 1.6 | 65.1% | 77.3% | 58.5% | 69.5% | 43.7% | 71.0% | 35.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| 2015 | 4/4 | 9.3 | 2.0 | 63.9% | 82.0% | 54.5% | 50.0% | 38.9% | 72.2% | 31.6% | — | —/— | — | — | — | — | — | — | — | — | — |
| 2016 | 35/41 | 6.4 | 2.5 | 64.0% | 77.5% | 53.8% | 58.7% | 38.0% | 69.0% | 37.4% | — | —/— | — | — | — | — | — | — | — | — | — |
| 2017 | 54/55 | 8.5 | 2.3 | 64.4% | 76.5% | 51.2% | 60.1% | 43.8% | 67.5% | 36.7% | — | —/— | — | — | — | — | — | — | — | — | — |
| 2018 | 60/61 | 9.3 | 1.8 | 65.6% | 77.2% | 53.6% | 59.0% | 43.8% | 69.1% | 40.3% | — | —/— | — | — | — | — | — | — | — | — | — |
| 2019 | 12/13 | 10.8 | 2.7 | 64.9% | 77.0% | 53.1% | 55.7% | 43.2% | 68.3% | 37.5% | — | —/— | — | — | — | — | — | — | — | — | — |
| 2022 | 1/1 | 1.0 | 0.0 | 69.6% | 51.3% | 41.2% | 58.3% | 100.0% | 48.2% | 26.2% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | 579/600 | 7.5 | 2.3 | 64.0% | 75.2% | 53.9% | 62.0% | 44.2% | 67.4% | 39.1% | 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.
| Juan Martin del Potro | 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 |
| 2005 | 1489 | 99.0 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2003 | 1475 | 97.7 | -1.06 | -0.96 | 0.692 | 42.2% | — | — | — | 0.0% | -3.50 | — | — | — | +0.03 |
| 2006 | 1634 | 132.7 | -1.67 | +1.31 | 1.004 | 50.3% | -26 | -17 | — | 49.0% | +0.31 | 4–3 (57%) | 0–3 (0%) | 100.8 | +0.10 | 2004 | 1521 | 101.4 | -2.70 | +2.78 | 1.113 | 51.9% | — | +33 | — | 55.6% | +0.34 | 2–1 (67%) | — | — | +0.12 |
| 2007 | 1785 | 150.1 | +1.44 | +2.80 | 1.100 | 51.8% | -8 | -190 | -144 | 56.0% | +0.53 | 6–7 (46%) | 5–9 (36%) | 96.2 | -1.92 | 2005 | 1509 | 104.8 | -1.67 | -1.99 | 0.982 | 49.7% | — | +25 | — | 37.5% | -0.87 | 1–1 | 1–1 | — | -0.08 |
| 2008 | 1991 | 156.7 | +3.27 | +4.69 | 1.241 | 53.6% | +2 | -152 | -289 | 71.4% | +1.45 | 6–0 (100%) | 11–6 (65%) | 112.1 | +1.21 | 2006 | 1514 | 102.9 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2009 | 2199 | 173.8 | +3.99 | +4.56 | 1.179 | 52.7% | +3 | -179 | — | 68.8% | +1.14 | 17–5 (77%) | 18–9 (67%) | 110.6 | -1.53 | 2007 | 1541 | 111.9 | +1.61 | +0.92 | 1.265 | 55.0% | — | — | — | 60.0% | +0.80 | 0–1 | — | — | -0.18 |
| 2010 | 2119 | 124.9 | -1.86 | -0.24 | 0.896 | 48.0% | +1 | — | — | 50.0% | -0.23 | 1–1 | 0–2 | — | +0.07 | 2008 | 1526 | 112.0 | -1.73 | -1.29 | 0.817 | 45.5% | — | -17 | — | 33.3% | -1.67 | — | 2–1 (67%) | — | +0.19 |
| 2011 | 2045 | 166.0 | +6.05 | +3.34 | 1.311 | 54.3% | -5 | +81 | -168 | 69.7% | +1.32 | 6–1 (86%) | 12–12 (50%) | 101.9 | -1.26 | 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%) | 104.0 | +0.63 |
| 2012 | 2229 | 175.3 | +5.34 | +3.94 | 1.245 | 53.5% | -5 | -35 | -186 | 71.7% | +1.24 | 10–4 (71%) | 27–16 (63%) | 107.9 | -2.48 | 2010 | 1542 | 108.7 | -5.84 | -2.45 | 0.729 | 44.1% | +60 | +21 | — | 33.3% | -1.33 | 2–1 (67%) | 2–1 (67%) | 102.2 | +0.57 |
| 2013 | 2208 | 176.9 | +5.15 | +3.49 | 1.227 | 53.2% | +57 | -66 | -69 | 70.1% | +1.06 | 17–11 (61%) | 21–12 (64%) | 104.1 | +1.25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2014 | 2138 | 142.5 | +3.50 | 0.00 | 1.229 | 53.4% | +41 | — | — | 68.0% | +0.92 | 2–1 (67%) | 2–1 (67%) | 99.3 | +0.16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2015 | 2092 | 120.9 | +1.85 | -1.89 | 1.138 | 51.8% | +46 | — | — | 44.4% | +0.56 | 1–0 | 1–3 (25%) | — | -0.04 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2016 | 2152 | 166.2 | +4.85 | +2.07 | 1.205 | 53.1% | +35 | -45 | -62 | 66.3% | +0.94 | 5–1 (83%) | 13–7 (65%) | 105.6 | -3.63 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2017 | 2175 | 172.9 | +4.16 | +2.23 | 1.129 | 51.7% | +30 | -70 | — | 64.0% | +0.62 | 11–5 (69%) | 18–7 (72%) | 106.7 | -3.90 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2018 | 2190 | 171.3 | +5.25 | +4.79 | 1.302 | 54.1% | +18 | -57 | -120 | 74.8% | +1.40 | 7–4 (64%) | 21–10 (68%) | 103.3 | -0.93 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2019 | 2124 | 141.2 | +2.38 | +1.53 | 1.181 | 52.7% | +53 | -26 | — | 65.7% | +1.17 | 1–3 (25%) | 0–3 (0%) | — | +0.25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2022 | 2094 | 102.5 | -3.25 | -4.28 | 0.506 | 38.8% | — | — | — | 0.0% | -4.00 | — | — | — | +0.01 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 2272 | 173.0 | +4.08 | +3.38 | 1.200 | 53.0% | +14 | -67 | -144 | 67.4% | +1.05 | 94–46 (67%) | 149–100 (60%) | 110.5 | -2.14 | 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 |
|---|---|---|---|---|---|
| Roger Federer | 7 | 18 | 25 | Mar 18, 2018 | H2H |
| Novak Djokovic | 3 | 16 | 19 | May 18, 2019 | H2H |
| Rafael Nadal | 6 | 11 | 17 | Sep 8, 2018 | H2H |
| John Isner | 8 | 4 | 12 | Sep 6, 2018 | H2H |
| David Ferrer | 7 | 5 | 12 | Mar 13, 2018 | 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 |