Izak Van der Merwe
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Stephane Robert | 1 | 1 | 2 | Feb 3, 2011 | H2H |
| John Isner | 0 | 1 | 1 | Jul 14, 2012 | H2H |
| Jack Sock | 1 | 0 | 1 | Jul 13, 2012 | H2H |
| Gilles Muller | 1 | 0 | 1 | Jul 12, 2012 | H2H |
| Tobias Kamke | 0 | 1 | 1 | Feb 16, 2012 | H2H |
H2H data updated: 2026-09-05 00:00 UTC
Izak Van der Merwe vs Roko Karanusic
Compare the head-to-head record, career totals, season-by-season performance, and match log for Izak Van der Merwe vs Roko Karanusic.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
H2H
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0 main draw meetings
H2H Match Log
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Roko Karanusic | 6-3 6-3 | Izak Van der Merwe | Match data | Sep 1, 2009* | Q2 | 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.
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Izak Van der Merwe | #1,965 | #113 | 507 | 1,583 | 7 | 7 | 50.0% | 0 | 0 | 0 | 0 | 0 | 0 |
| Roko Karanusic | #1,573 | #88 | 974 | 1,658 | 12 | 38 | 24.0% | 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 | Izak Van der Merwe | Roko Karanusic | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 20 | — | — | — | — | — | — | — | 2003 | 0–2 | 0.0% | #163 | 1,521 | 0 | 0 |
| 21 | — | — | — | — | — | — | — | 2004 | 0–2 | 0.0% | #148 | 1,526 | 0 | 0 |
| 22 | — | — | — | — | — | — | — | 2005 | 1–6 | 14.3% | #161 | 1,517 | 0 | 0 |
| 23 | — | — | — | — | — | — | — | 2006 | 1–4 | 20.0% | #163 | 1,597 | 0 | 0 |
| 24 | 2008 | 0–1 | 0.0% | #304 | 1,516 | 0 | 0 | 2007 | 2–6 | 25.0% | #137 | 1,624 | 0 | 0 |
| 25 | 2009 | 1–1 | 50.0% | #272 | 1,517 | 0 | 0 | 2008 | 7–12 | 36.8% | #91 | 1,599 | 0 | 0 |
| 26 | 2010 | 1–1 | 50.0% | #174 | 1,522 | 0 | 0 | 2009 | 1–6 | 14.3% | #189 | 1,595 | 0 | 0 |
| 27 | 2011 | 3–1 | 75.0% | #113 | 1,503 | 0 | 0 | — | — | — | — | — | — | — |
| 28 | 2012 | 2–3 | 40.0% | #214 | 1,564 | 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 | Izak Van der Merwe | Roko Karanusic | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2003 | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2004 | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 22 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2005 | 1 | 5 | 6 | 16.7% | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 23 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2006 | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% |
| 24 | 2008 | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 2007 | 1 | 3 | 4 | 25.0% | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% |
| 25 | 2009 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | 2008 | 3 | 6 | 9 | 33.3% | 2 | 4 | 6 | 33.3% | 2 | 2 | 4 | 50.0% | — | — | — | — |
| 26 | 2010 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | 2009 | 1 | 5 | 6 | 16.7% | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 27 | 2011 | 3 | 1 | 4 | 75.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2012 | 0 | 2 | 2 | 0.0% | — | — | — | — | 2 | 1 | 3 | 66.7% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 5 | 5 | 10 | 50.0% | — | — | — | — | 2 | 2 | 4 | 50.0% | — | — | — | — | — | 6 | 22 | 28 | 21.4% | 2 | 8 | 10 | 20.0% | 4 | 6 | 10 | 40.0% | 0 | 2 | 2 | 0.0% |
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 14/14 of Izak Van der Merwe's and 49/50 of Roko Karanusic'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 | Izak Van der Merwe | Roko Karanusic | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | |
| 20 | — | —/— | — | — | — | — | — | — | — | — | — | 2003 | 2/2 | 2.5 | 4.0 | 54.2% | 73.3% | 49.2% | 68.8% | 11.7% | 62.0% | 31.9% |
| 21 | — | —/— | — | — | — | — | — | — | — | — | — | 2004 | 2/2 | 6.0 | 4.0 | 59.9% | 73.9% | 53.1% | 70.8% | 16.7% | 65.2% | 27.1% |
| 22 | — | —/— | — | — | — | — | — | — | — | — | — | 2005 | 7/7 | 3.0 | 1.6 | 62.9% | 63.9% | 45.3% | 57.4% | 37.8% | 56.8% | 29.7% |
| 23 | — | —/— | — | — | — | — | — | — | — | — | — | 2006 | 5/5 | 5.8 | 0.6 | 68.0% | 65.9% | 48.0% | 52.6% | 41.0% | 60.1% | 33.0% |
| 24 | 2008 | 1/1 | 7.0 | 2.0 | 59.0% | 65.2% | 37.5% | 30.0% | 28.6% | 53.8% | 37.3% | 2007 | 8/8 | 2.5 | 1.1 | 59.1% | 71.1% | 52.5% | 47.5% | 36.7% | 62.9% | 36.8% |
| 25 | 2009 | 2/2 | 12.0 | 4.5 | 58.1% | 79.5% | 54.5% | 35.0% | 61.1% | 69.3% | 34.3% | 2008 | 18/19 | 4.9 | 1.4 | 59.3% | 67.3% | 53.5% | 53.6% | 36.0% | 61.5% | 38.2% |
| 26 | 2010 | 2/2 | 8.0 | 2.5 | 54.3% | 77.4% | 58.6% | 33.3% | 16.7% | 68.0% | 34.6% | 2009 | 7/7 | 4.7 | 2.1 | 65.1% | 60.5% | 42.6% | 44.3% | 38.4% | 54.5% | 32.2% |
| 27 | 2011 | 4/4 | 6.3 | 7.5 | 52.9% | 74.8% | 50.5% | 75.6% | 34.0% | 63.2% | 37.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| 28 | 2012 | 5/5 | 5.2 | 3.2 | 56.1% | 74.2% | 54.5% | 59.0% | 19.1% | 65.6% | 30.0% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 14/14 | 7.0 | 4.4 | 55.4% | 74.9% | 52.7% | 54.6% | 29.7% | 65.0% | 34.0% | — | 49/50 | 4.2 | 1.6 | 61.3% | 66.8% | 49.8% | 53.1% | 35.4% | 60.1% | 34.7% |
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 | Izak Van der Merwe | Roko Karanusic | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2003 | 1522 | 103.0 | +1.37 | -2.36 | 0.840 | 46.0% | — | — | — | 0.0% | -2.00 | — | 0–1 | — | +0.04 |
| 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2004 | 1526 | 107.4 | -1.97 | +1.72 | 0.779 | 46.7% | — | — | — | 28.6% | -1.29 | 0–1 | 2–1 (67%) | — | -0.22 |
| 22 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2005 | 1518 | 101.1 | -2.86 | -3.14 | 0.687 | 43.9% | +5 | — | — | 22.2% | -2.11 | 0–1 | 1–0 | — | +0.60 |
| 23 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2006 | 1597 | 119.2 | +1.05 | -1.79 | 0.829 | 46.0% | — | — | — | 25.0% | -1.42 | — | 1–1 | — | -0.43 |
| 24 | 2008 | 1517 | 101.3 | -0.69 | -3.86 | 0.807 | 44.4% | — | — | — | 0.0% | -3.33 | — | — | — | +0.15 | 2007 | 1624 | 123.3 | -1.45 | +0.27 | 0.993 | 49.7% | -12 | — | — | 33.3% | -0.56 | 0–2 | 1–3 (25%) | — | +0.22 |
| 25 | 2009 | 1518 | 108.3 | -1.42 | +0.01 | 1.117 | 51.2% | — | — | — | 60.0% | 0.00 | 0–1 | 3–1 (75%) | — | +0.22 | 2008 | 1599 | 125.0 | -1.27 | +0.71 | 0.993 | 49.8% | +11 | -71 | +81 | 42.6% | -0.09 | 1–5 (17%) | 2–7 (22%) | 92.6 | +0.73 |
| 26 | 2010 | 1523 | 102.0 | +0.43 | -2.83 | 1.083 | 49.2% | — | — | — | 50.0% | -1.00 | — | 2–1 (67%) | — | +0.40 | 2009 | 1596 | 118.3 | -3.72 | -2.83 | 0.706 | 43.3% | +1 | — | — | 23.8% | -2.00 | 1–2 (33%) | 1–2 (33%) | — | -0.19 |
| 27 | 2011 | 1503 | 100.3 | -0.75 | -0.32 | 1.028 | 51.7% | +12 | — | — | 66.7% | +1.00 | 1–0 | 1–0 | — | +0.83 | 2010 | 1554 | 94.0 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2012 | 1564 | 106.2 | -1.25 | -1.30 | 0.872 | 47.6% | — | — | +163 | 36.4% | -0.82 | 1–0 | 1–2 (33%) | — | +0.40 | 2011 | 1530 | 102.9 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2013 | 1521 | 96.8 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2012 | 1512 | 96.1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1584 | 104.1 | -0.85 | -1.23 | 0.971 | 49.3% | +12 | — | +163 | 46.9% | -0.44 | 2–1 (67%) | 7–4 (64%) | 105.5 | +14.29 | — | 1658 | 118.4 | -1.56 | -0.76 | 0.868 | 47.4% | +3 | -71 | +81 | 31.3% | -1.02 | 2–11 (15%) | 8–15 (35%) | 88.5 | +1.53 |
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.
Roko Karanusic
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Denis Gremelmayr | 0 | 2 | 2 | Feb 12, 2009 | H2H |
| Maximo Gonzalez | 0 | 2 | 2 | Jul 19, 2008 | H2H |
| Ivan Ljubicic | 1 | 1 | 2 | Jul 18, 2008 | H2H |
| Luis Horna | 1 | 1 | 2 | Jun 25, 2008 | H2H |
| Benjamin Becker | 0 | 1 | 1 | Jun 24, 2009 | H2H |