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

Jan Siemerink #132 def. M. Koevermans #51

4-6 6-2 6-4 3-6 6-1

Match Information

Date	Jan 20, 1991*
Tournament	Australian Open
Category	Grand Slam
Surface	Hard
Round	R32
Winner	Jan Siemerink
Score	4-6 6-2 6-4 3-6 6-1
Loser	M. Koevermans
Duration	3h 45m

Stat	Jan Siemerink	M. Koevermans
Aces	12	2
Double faults	1	5
First serve %	58	61
First serve points won %	78	63
Second serve points won %	50	48
Break points saved %	33	43
Break points converted %	57	67
Service points won %	66	57
Return points won %	43	34
Total points won %	54	46

Pre-match Comparison

Field	Jan Siemerink	M. Koevermans
Country	NED	NED
Birth date	Apr 14, 1970	Feb 3, 1968
Age	20	22
Height	183	185
Handedness	Left-Handed	Right-Handed
Backhand style	—	—
Ranking (entering)	132	51
Ranking points (entering)	258	588
Elo (entering)	1,596	1,764
Career W-L	261–260	64–80
Career earnings	$4,347,693	$842,859

Pre-match H2H

Jan Siemerink 0 – 0 M. Koevermans

Path

Jan Siemerink's path

Date	Round	Opponent	Score	W/L	H2H	Match data
Jan 18, 1991	R64	C. Steeb	6-2 5-7 4-6 6-4 6-2	W	H2H	Match data
Jan 16, 1991	R128	J. Altur	6-3 6-3 6-3	W	H2H	Match data

Jan Siemerink's next match

Date	Round	Opponent	Score	W/L	H2H	Match data
Jan 23, 1991	R16	Goran Prpic	6-7(3) 7-6(3) 0-6 6-7(7)	L	H2H	Match data

M. Koevermans's path

Date	Round	Opponent	Score	W/L	H2H	Match data
Jan 18, 1991	R64	Jason Stoltenberg	6-3 6-3 6-3	W	H2H	Match data
Jan 16, 1991	R128	D. Pate	6-4 6-2 3-6 2-6 6-0	W	H2H	Match data