H2H data updated: 2026-07-18 14:16 UTC
Stefan Koubek vs Mark Nielsen H2H: 1-0
Stefan Koubek holds a 1–0 lead over Mark Nielsen in their ATP head-to-head. Across 1 main-draw meeting, Stefan Koubek leads 1–0 on hard courts. Most recently, Stefan Koubek won the 2003 Auckland third round 6-3 6-2.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
AUT
Age 49
Left-Handed
175 cm / 5'9"
H2H
1
–
0
1 main draw meetings
NZL
Age 48
Right-Handed
185 cm / 6'1"
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Jan 9, 2003* | Auckland | ATP 250 | R32 | Hard | Stefan Koubek | 6-3 6-2 | Mark Nielsen | Match data |
* Estimated match date where the exact historical date is unavailable.
Career Comparison
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 | Finals | 500 | 250 | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stefan Koubek | #906 | #20 | 1,143 | 1,794 | 195 | 235 | 45.3% | 0 | 0 | 0 | 0 | 3 | 3 |
| Mark Nielsen | #1,519 | #172 | 211 | 1,524 | 2 | 8 | 20.0% | 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 | Stefan Koubek | Mark Nielsen | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 17 | 1994 | 0–1 | 0.0% | #1219 | 1,485 | 0 | 0 | — | — | — | — | — | — | — |
| 19 | 1996 | 1–2 | 33.3% | #311 | 1,481 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 1997 | 4–2 | 66.7% | #125 | 1,543 | 0 | 0 | 1998 | 1–1 | 50.0% | #339 | 1,520 | 0 | 0 |
| 21 | 1998 | 2–4 | 33.3% | #93 | 1,533 | 0 | 0 | — | — | — | — | — | — | — |
| 22 | 1999 | 29–25 | 53.7% | #46 | 1,681 | 0 | 1 | 2000 | 0–1 | 0.0% | #262 | 1,457 | 0 | 0 |
| 23 | 2000 | 26–27 | 49.1% | #54 | 1,627 | 0 | 2 | 2001 | 0–1 | 0.0% | #457 | 1,437 | 0 | 0 |
| 24 | 2001 | 20–22 | 47.6% | #63 | 1,698 | 0 | 2 | 2002 | 1–1 | 50.0% | #302 | 1,457 | 0 | 0 |
| 25 | 2002 | 18–31 | 36.7% | #54 | 1,578 | 0 | 2 | 2003 | 0–1 | 0.0% | #549 | 1,451 | 0 | 0 |
| 26 | 2003 | 19–24 | 44.2% | #53 | 1,647 | 0 | 3 | 2004 | 0–1 | 0.0% | #618 | 1,446 | 0 | 0 |
| 27 | 2004 | 22–24 | 47.8% | #60 | 1,754 | 0 | 3 | 2005 | 0–1 | 0.0% | #311 | 1,436 | 0 | 0 |
| 28 | 2005 | 6–15 | 28.6% | #182 | 1,568 | 0 | 3 | 2006 | 0–1 | 0.0% | #890 | 1,418 | 0 | 0 |
| 29 | 2006 | 14–9 | 60.9% | #80 | 1,693 | 0 | 3 | — | — | — | — | — | — | — |
| 30 | 2007 | 22–26 | 45.8% | #47 | 1,760 | 0 | 3 | — | — | — | — | — | — | — |
| 31 | 2008 | 3–6 | 33.3% | #192 | 1,703 | 0 | 3 | — | — | — | — | — | — | — |
| 32 | 2009 | 6–11 | 35.3% | #135 | 1,636 | 0 | 3 | — | — | — | — | — | — | — |
| 33 | 2010 | 3–5 | 37.5% | #131 | 1,632 | 0 | 3 | — | — | — | — | — | — | — |
| 34 | 2011 | 0–1 | 0.0% | #647 | 1,602 | 0 | 3 | — | — | — | — | — | — | — |