Ranking history updated: 2026-05-30 21:14 UTC

Seiko Okamoto WTA Ranking History

Seiko Okamoto's WTA ranking history, with year-by-year summaries plus every available weekly rank, age and points snapshot.

Latest Rank
920
Latest date
May 9, 2011
Career high
178
Career-high date
Jan 16, 2006
Career-high points
187
Points-high date
Nov 7, 2005
Best year-end
191
Weeks at #1
0

Coverage: 675 distinct observed ranking weeks, Oct 6, 1997–May 9, 2011. Available-week totals may undercount careers where historical snapshots are missing. Weeks at No. 1 counts available snapshots.

Rank and Points

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Ranking History

Season Date Week Age Rank Points
1999 May 17 20 21.2 #528 17
1999 May 10 19 21.2 #527 18
1999 May 3 18 21.1 #514 19
1999 Apr 26 17 21.1 #515 19
1999 Apr 19 16 21.1 #511 19
1999 Apr 12 15 21.1 #504 20
1999 Apr 5 14 21.1 #504 19
1999 Mar 29 13 21.0 #508 19
1999 Mar 22 12 21.0 #486 20
1999 Mar 15 11 21.0 #486 20
1999 Mar 8 10 21.0 #482 20
1999 Mar 1 9 21.0 #482 20
1999 Feb 22 8 20.9 #480 20
1999 Feb 15 7 20.9 #485 20
1999 Feb 8 6 20.9 #483 20
1999 Feb 1 5 20.9 #498 19
1999 Jan 25 4 20.9 #499 19
1999 Jan 18 3 20.8 #499 19
1999 Jan 11 2 20.8 #500 19
1999 Jan 4 1 20.8 #499 19
1998 Dec 28 53 20.8 #500 19
1998 Dec 21 52 20.8 #500 19
1998 Dec 14 51 20.8 #501 19
1998 Dec 7 50 20.7 #494 19
1998 Nov 30 49 20.7 #504 18
1998 Nov 23 48 20.7 #508 18
1998 Nov 16 47 20.7 #510 18
1998 Nov 9 46 20.7 #509 18
1998 Nov 2 45 20.6 #517 18
1998 Oct 26 44 20.6 #511 18
1998 Oct 19 43 20.6 #510 18
1998 Oct 12 42 20.6 #561 15
1998 Oct 5 41 20.6 #529 17
1998 Sep 28 40 20.5 #540 16
1998 Sep 21 39 20.5 #537 16
1998 Sep 14 38 20.5 #534 17
1998 Sep 7 37 20.5 #541 17
1998 Aug 31 36 20.5 #541 17
1998 Aug 24 35 20.4 #536 17
1998 Aug 17 34 20.4 #532 17
1998 Aug 10 33 20.4 #537 17
1998 Aug 3 32 20.4 #536 17
1998 Jul 27 31 20.4 #543 17
1998 Jul 20 30 20.4 #548 16
1998 Jul 13 29 20.3 #550 16
1998 Jul 6 28 20.3 #546 16
1998 Jun 29 27 20.3 #554 16
1998 Jun 22 26 20.3 #554 16
1998 Jun 15 25 20.3 #552 16
1998 Jun 8 24 20.2 #565 15
1998 Jun 1 23 20.2 #568 15
1998 May 25 22 20.2 #568 15
1998 May 18 21 20.2 #565 15
1998 May 11 20 20.2 #565 15
1998 May 4 19 20.1 #596 13
1998 Apr 27 18 20.1 #593 13
1998 Apr 20 17 20.1 #591 13
1998 Apr 13 16 20.1 #676 9
1998 Apr 6 15 20.1 #671 9
1998 Mar 30 14 20.0 #669 9
1998 Mar 23 13 20.0 #717 7
1998 Mar 16 12 20.0 #717 7
1998 Mar 9 11 20.0 #723 7
1998 Mar 2 10 20.0 #720 7
1998 Feb 23 9 19.9 #719 7
1998 Feb 16 8 19.9 #720 7
1998 Feb 9 7 19.9 #722 7
1998 Feb 2 6 19.9 #723 7
1998 Jan 26 5 19.9 #725 7
1998 Jan 19 4 19.9 #732 7
1998 Jan 12 3 19.8 #729 7
1998 Jan 5 2 19.8 #729 7
1997 Dec 29 1 19.8 #731 7
1997 Dec 22 52 19.8 #731 7
1997 Dec 15 51 19.8 #728 7
1997 Dec 8 50 19.7 #725 7
1997 Dec 1 49 19.7 #726 7
1997 Nov 24 48 19.7 #723 7
1997 Nov 17 47 19.7 #728 7
1997 Nov 10 46 19.7 #733 7
1997 Nov 3 45 19.6 #731 7
1997 Oct 27 44 19.6 #733 7
1997 Oct 20 43 19.6 #729 7
1997 Oct 13 42 19.6 #754 6
1997 Oct 6 41 19.6 #892 3
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