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.
Select a legend item to show or hide that series. Focus the chart and use the left and right arrow keys to inspect ranking snapshots.
| Season | Date | Week | Age | Rank | Points |
|---|---|---|---|---|---|
| 2003 | Oct 27 | 44 | 25.6 | #276 | 79 |
| 2003 | Oct 20 | 43 | 25.6 | #301 | 67 |
| 2003 | Oct 13 | 42 | 25.6 | #300 | 67 |
| 2003 | Oct 6 | 41 | 25.6 | #312 | 60 |
| 2003 | Sep 29 | 40 | 25.5 | #297 | 67 |
| 2003 | Sep 22 | 39 | 25.5 | #285 | 72 |
| 2003 | Sep 15 | 38 | 25.5 | #286 | 72 |
| 2003 | Sep 8 | 37 | 25.5 | #296 | 69 |
| 2003 | Sep 1 | 36 | 25.5 | #295 | 71 |
| 2003 | Aug 25 | 35 | 25.4 | #295 | 71 |
| 2003 | Aug 18 | 34 | 25.4 | #292 | 71 |
| 2003 | Aug 11 | 33 | 25.4 | #293 | 71 |
| 2003 | Aug 4 | 32 | 25.4 | #295 | 71 |
| 2003 | Jul 28 | 31 | 25.4 | #295 | 73 |
| 2003 | Jul 21 | 30 | 25.4 | #295 | 68 |
| 2003 | Jul 14 | 29 | 25.3 | #313 | 63 |
| 2003 | Jul 7 | 28 | 25.3 | #309 | 63 |
| 2003 | Jun 30 | 27 | 25.3 | #325 | 58 |
| 2003 | Jun 23 | 26 | 25.3 | #325 | 58 |
| 2003 | Jun 16 | 25 | 25.3 | #324 | 58 |
| 2003 | Jun 9 | 24 | 25.2 | #326 | 58 |
| 2003 | Jun 2 | 23 | 25.2 | #304 | 67 |
| 2003 | May 26 | 22 | 25.2 | #304 | 67 |
| 2003 | May 19 | 21 | 25.2 | #289 | 70 |
| 2003 | May 12 | 20 | 25.2 | #290 | 70 |
| 2003 | May 5 | 19 | 25.1 | #287 | 71 |
| 2003 | Apr 28 | 18 | 25.1 | #294 | 68 |
| 2003 | Apr 21 | 17 | 25.1 | #306 | 66 |
| 2003 | Apr 14 | 16 | 25.1 | #305 | 66 |
| 2003 | Apr 7 | 15 | 25.1 | #307 | 66 |
| 2003 | Mar 31 | 14 | 25.0 | #307 | 66 |
| 2003 | Mar 24 | 13 | 25.0 | #301 | 66 |
| 2003 | Mar 17 | 12 | 25.0 | #301 | 66 |
| 2003 | Mar 10 | 11 | 25.0 | #300 | 66 |
| 2003 | Mar 3 | 10 | 25.0 | #300 | 66 |
| 2003 | Feb 24 | 9 | 25.0 | #304 | 64 |
| 2003 | Feb 17 | 8 | 24.9 | #296 | 65 |
| 2003 | Feb 10 | 7 | 24.9 | #299 | 65 |
| 2003 | Feb 3 | 6 | 24.9 | #299 | 65 |
| 2003 | Jan 27 | 5 | 24.9 | #311 | 61 |
| 2003 | Jan 20 | 4 | 24.9 | #316 | 61 |
| 2003 | Jan 13 | 3 | 24.8 | #316 | 61 |
| 2003 | Jan 6 | 2 | 24.8 | #316 | 61 |
| 2003 | Jan 1 | 1 | 24.8 | #316 | 61 |
| 2002 | Dec 30 | 1 | 24.8 | #316 | 61 |
| 2002 | Dec 23 | 52 | 24.8 | #316 | 61 |
| 2002 | Dec 16 | 51 | 24.8 | #316 | 61 |
| 2002 | Dec 9 | 50 | 24.7 | #315 | 61 |
| 2002 | Dec 2 | 49 | 24.7 | #313 | 61 |
| 2002 | Nov 25 | 48 | 24.7 | #312 | 62 |
| 2002 | Nov 18 | 47 | 24.7 | #310 | 64 |
| 2002 | Nov 11 | 46 | 24.7 | #309 | 64 |
| 2002 | Nov 4 | 45 | 24.6 | #320 | 61 |
| 2002 | Oct 28 | 44 | 24.6 | #317 | 61 |
| 2002 | Oct 21 | 43 | 24.6 | #331 | 55 |
| 2002 | Oct 14 | 42 | 24.6 | #331 | 55 |
| 2002 | Oct 7 | 41 | 24.6 | #331 | 55 |
| 2002 | Sep 30 | 40 | 24.5 | #362 | 46 |
| 2002 | Sep 23 | 39 | 24.5 | #379 | 42 |
| 2002 | Sep 16 | 38 | 24.5 | #376 | 42 |
| 2002 | Sep 9 | 37 | 24.5 | #380 | 42 |
| 2002 | Sep 2 | 36 | 24.5 | #392 | 40 |
| 2002 | Aug 26 | 35 | 24.5 | #392 | 40 |
| 2002 | Aug 19 | 34 | 24.4 | #391 | 40 |
| 2002 | Aug 12 | 33 | 24.4 | #391 | 40 |
| 2002 | Aug 5 | 32 | 24.4 | #391 | 40 |
| 2002 | Jul 29 | 31 | 24.4 | #408 | 37 |
| 2002 | Jul 22 | 30 | 24.4 | #404 | 37 |
| 2002 | Jul 15 | 29 | 24.3 | #400 | 37 |
| 2002 | Jul 8 | 28 | 24.3 | #392 | 38 |
| 2002 | Jul 1 | 27 | 24.3 | #402 | 37 |
| 2002 | Jun 24 | 26 | 24.3 | #402 | 37 |
| 2002 | Jun 17 | 25 | 24.3 | #407 | 37 |
| 2002 | Jun 10 | 24 | 24.2 | #407 | 37 |
| 2002 | Jun 3 | 23 | 24.2 | #465 | 28 |
| 2002 | May 27 | 22 | 24.2 | #465 | 28 |
| 2002 | May 20 | 21 | 24.2 | #508 | 24 |
| 2002 | May 13 | 20 | 24.2 | #508 | 24 |
| 2002 | May 6 | 19 | 24.1 | #489 | 26 |
| 2002 | Apr 29 | 18 | 24.1 | #488 | 25 |
| 2002 | Apr 22 | 17 | 24.1 | #506 | 24 |
| 2002 | Apr 15 | 16 | 24.1 | #512 | 24 |
| 2002 | Apr 8 | 15 | 24.1 | #514 | 24 |
| 2002 | Apr 1 | 14 | 24.0 | #513 | 24 |
| 2002 | Mar 25 | 13 | 24.0 | #512 | 24 |
| 2002 | Mar 18 | 12 | 24.0 | #512 | 24 |
| 2002 | Mar 11 | 11 | 24.0 | #518 | 23 |
| 2002 | Mar 4 | 10 | 24.0 | #518 | 23 |
| 2002 | Feb 25 | 9 | 24.0 | #516 | 23 |
| 2002 | Feb 18 | 8 | 23.9 | #541 | 21 |
| 2002 | Feb 11 | 7 | 23.9 | #545 | 20 |
| 2002 | Feb 4 | 6 | 23.9 | #540 | 20 |
| 2002 | Jan 28 | 5 | 23.9 | #541 | 20 |
| 2002 | Jan 21 | 4 | 23.9 | #541 | 20 |
| 2002 | Jan 14 | 3 | 23.8 | #541 | 20 |
| 2002 | Jan 7 | 2 | 23.8 | #541 | 20 |
| 2002 | Jan 1 | 1 | 23.8 | #541 | 20 |
| 2001 | Dec 31 | 1 | 23.8 | #541 | 20 |
| 2001 | Dec 24 | 52 | 23.8 | #541 | 20 |
| 2001 | Dec 17 | 51 | 23.8 | #541 | 20 |
| 2001 | Dec 10 | 50 | 23.7 | #545 | 19 |
| 2001 | Dec 3 | 49 | 23.7 | #548 | 19 |
| 2001 | Nov 26 | 48 | 23.7 | #509 | 23 |
| 2001 | Nov 19 | 47 | 23.7 | #529 | 22 |
| 2001 | Nov 12 | 46 | 23.7 | #531 | 22 |
| 2001 | Mar 26 | 13 | 23.0 | #583 | 16 |
| 2001 | Mar 19 | 12 | 23.0 | #583 | 16 |
| 2001 | Mar 12 | 11 | 23.0 | #581 | 16 |
| 2001 | Mar 5 | 10 | 23.0 | #581 | 16 |
| 2001 | Feb 26 | 9 | 23.0 | #586 | 16 |
| 2001 | Feb 19 | 8 | 22.9 | #590 | 16 |
| 2001 | Feb 12 | 7 | 22.9 | #594 | 16 |
| 2001 | Feb 5 | 6 | 22.9 | #596 | 16 |
| 2001 | Jan 29 | 5 | 22.9 | #592 | 16 |
| 2001 | Jan 22 | 4 | 22.9 | #591 | 16 |
| 2001 | Jan 15 | 3 | 22.8 | #591 | 16 |
| 2001 | Jan 8 | 2 | 22.8 | #593 | 16 |
| 2001 | Jan 1 | 1 | 22.8 | #594 | 16 |
| 2000 | Dec 25 | 52 | 22.8 | #594 | 16 |
| 2000 | Dec 18 | 51 | 22.8 | #594 | 16 |
| 2000 | Dec 11 | 50 | 22.7 | #593 | 16 |
| 2000 | Dec 4 | 49 | 22.7 | #593 | 16 |
| 2000 | Nov 6 | 45 | 22.7 | #714 | 10 |
| 2000 | Oct 30 | 44 | 22.6 | #712 | 10 |
| 2000 | Oct 23 | 43 | 22.6 | #709 | 10 |
| 2000 | Oct 16 | 42 | 22.6 | #700 | 10 |
| 2000 | Oct 9 | 41 | 22.6 | #700 | 10 |
| 2000 | Oct 2 | 40 | 22.6 | #589 | 15 |
| 2000 | Sep 25 | 39 | 22.5 | #580 | 15 |
| 2000 | Sep 18 | 38 | 22.5 | #553 | 17 |
| 2000 | Sep 11 | 37 | 22.5 | #538 | 18 |
| 2000 | Sep 4 | 36 | 22.5 | #552 | 17 |
| 2000 | Aug 28 | 35 | 22.5 | #552 | 17 |
| 2000 | Aug 21 | 34 | 22.4 | #549 | 17 |
| 2000 | Aug 14 | 33 | 22.4 | #539 | 17 |
| 2000 | Aug 7 | 32 | 22.4 | #537 | 17 |
| 2000 | Jul 31 | 31 | 22.4 | #534 | 17 |
| 2000 | Jul 24 | 30 | 22.4 | #531 | 17 |
| 2000 | Jul 17 | 29 | 22.3 | #528 | 17 |
| 2000 | Jul 10 | 28 | 22.3 | #530 | 17 |
| 2000 | Jul 3 | 27 | 22.3 | #551 | 16 |
| 2000 | Jun 26 | 26 | 22.3 | #551 | 16 |
| 2000 | Jun 19 | 25 | 22.3 | #543 | 16 |
| 2000 | Jun 12 | 24 | 22.2 | #538 | 16 |
| 2000 | Jun 5 | 23 | 22.2 | #519 | 18 |
| 2000 | May 29 | 22 | 22.2 | #519 | 18 |
| 2000 | May 22 | 21 | 22.2 | #513 | 18 |
| 2000 | May 15 | 20 | 22.2 | #506 | 19 |
| 2000 | May 8 | 19 | 22.2 | #523 | 18 |
| 2000 | May 1 | 18 | 22.1 | #507 | 19 |
| 2000 | Apr 24 | 17 | 22.1 | #511 | 18 |
| 2000 | Apr 17 | 16 | 22.1 | #519 | 18 |
| 2000 | Apr 10 | 15 | 22.1 | #481 | 21 |
| 2000 | Apr 3 | 14 | 22.1 | #481 | 21 |
| 2000 | Mar 27 | 13 | 22.0 | #483 | 21 |
| 2000 | Mar 20 | 12 | 22.0 | #483 | 21 |
| 2000 | Mar 13 | 11 | 22.0 | #481 | 21 |
| 2000 | Mar 6 | 10 | 22.0 | #481 | 21 |
| 2000 | Feb 28 | 9 | 22.0 | #482 | 21 |
| 2000 | Feb 21 | 8 | 21.9 | #478 | 21 |
| 2000 | Feb 14 | 7 | 21.9 | #479 | 21 |
| 2000 | Feb 7 | 6 | 21.9 | #478 | 21 |
| 2000 | Jan 31 | 5 | 21.9 | #469 | 22 |
| 2000 | Jan 24 | 4 | 21.9 | #470 | 22 |
| 2000 | Jan 17 | 3 | 21.8 | #470 | 22 |
| 2000 | Jan 10 | 2 | 21.8 | #471 | 22 |
| 2000 | Jan 3 | 1 | 21.8 | #469 | 22 |
| 2000 | Jan 1 | 52 | 21.8 | #468 | 22 |
| 1999 | Dec 27 | 52 | 21.8 | #468 | 22 |
| 1999 | Dec 20 | 51 | 21.8 | #467 | 22 |
| 1999 | Dec 13 | 50 | 21.7 | #466 | 22 |
| 1999 | Dec 6 | 49 | 21.7 | #469 | 22 |
| 1999 | Nov 29 | 48 | 21.7 | #468 | 22 |
| 1999 | Nov 22 | 47 | 21.7 | #473 | 22 |
| 1999 | Nov 15 | 46 | 21.7 | #476 | 22 |
| 1999 | Nov 8 | 45 | 21.7 | #475 | 22 |
| 1999 | Nov 1 | 44 | 21.6 | #475 | 22 |
| 1999 | Oct 25 | 43 | 21.6 | #476 | 22 |
| 1999 | Oct 18 | 42 | 21.6 | #479 | 22 |
| 1999 | Oct 11 | 41 | 21.6 | #456 | 24 |
| 1999 | Oct 4 | 40 | 21.6 | #476 | 21 |
| 1999 | Sep 27 | 39 | 21.5 | #468 | 22 |
| 1999 | Sep 20 | 38 | 21.5 | #475 | 21 |
| 1999 | Sep 13 | 37 | 21.5 | #483 | 20 |
| 1999 | Sep 6 | 36 | 21.5 | #496 | 20 |
| 1999 | Aug 30 | 35 | 21.5 | #496 | 20 |
| 1999 | Aug 23 | 34 | 21.4 | #497 | 20 |
| 1999 | Aug 16 | 33 | 21.4 | #497 | 20 |
| 1999 | Aug 9 | 32 | 21.4 | #496 | 20 |
| 1999 | Aug 2 | 31 | 21.4 | #496 | 20 |
| 1999 | Jul 26 | 30 | 21.4 | #493 | 20 |
| 1999 | Jul 19 | 29 | 21.3 | #492 | 20 |
| 1999 | Jul 12 | 28 | 21.3 | #498 | 20 |
| 1999 | Jul 5 | 27 | 21.3 | #495 | 20 |
| 1999 | Jun 28 | 26 | 21.3 | #495 | 20 |
| 1999 | Jun 21 | 25 | 21.3 | #495 | 20 |
| 1999 | Jun 14 | 24 | 21.3 | #504 | 20 |
| 1999 | Jun 7 | 23 | 21.2 | #499 | 20 |
| 1999 | May 31 | 22 | 21.2 | #523 | 18 |
| 1999 | May 24 | 21 | 21.2 | #523 | 18 |