Site data updated: 2026-05-28 18:14 UTC

Juan Martin del Potro #6 def. Daniel Koellerer #62

6-1 3-6 6-3 6-3

Match Information

Date	Sep 6, 2009*
Tournament	US Open
Category	Grand Slam
Surface	Hard
Round	R32
Winner	Juan Martin del Potro
Score	6-1 3-6 6-3 6-3
Loser	Daniel Koellerer
Duration	2h 37m

Stat	Juan Martin del Potro	Daniel Koellerer
Aces	20	0
Double faults	4	2
First serve %	62	70
First serve points won %	81	51
Second serve points won %	37	44
Break points saved %	50	44
Break points converted %	56	50
Service points won %	65	49
Return points won %	51	35
Total points won %	57	43

Pre-match Comparison

Field	Juan Martin del Potro	Daniel Koellerer
Country	ARG	AUT
Birth date	Sep 23, 1988	—
Age	20	—
Height	198	180
Handedness	Right-Handed	Right-Handed
Backhand style	Two-Handed Backhand	—
Ranking (entering)	6	62
Ranking points (entering)	5,325	862
Elo (entering)	2,187	1,642
Career W-L	416–172	19–34
Career earnings	$25,896,046	$757,918

Pre-match H2H

Juan Martin del Potro 1 – 0 Daniel Koellerer

Path

Juan Martin del Potro's path

Date	Round	Opponent	Score	W/L	H2H	Match data
Sep 3, 2009	R64	Jurgen Melzer	7-6(6) 6-3 6-3	W	H2H	Match data
Sep 2, 2009	R128	Juan Monaco	6-3 6-3 6-1	W	H2H	Match data

Juan Martin del Potro's next match

Date	Round	Opponent	Score	W/L	H2H	Match data
Sep 8, 2009	R16	Juan Carlos Ferrero	6-3 6-3 6-3	W	H2H	Match data

Daniel Koellerer's path

Date	Round	Opponent	Score	W/L	H2H	Match data
Sep 3, 2009	R64	Pablo Cuevas	3-6 6-2 6-1 6-4	W	H2H	Match data
Sep 2, 2009	R128	Rui Machado	6-2 6-4 2-6 6-2	W	H2H	Match data