Ranking history updated: 2026-03-17 04:30 UTC
Toshiharu Kato ATP Ranking History
Toshiharu Kato's ATP ranking history, with year-by-year summaries plus every available weekly rank, age and points snapshot.
Latest Rank
1,538
Latest date
Jun 28, 2010
Career high
823
Career-high date
Oct 11, 2004
Career-high points
11
Points-high date
Oct 11, 2004
Best year-end
848
Weeks at #1
0
Coverage: 620 distinct observed ranking weeks, Jul 27, 1998–Jun 28, 2010. 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 |
|---|---|---|---|---|---|
| 2006 | Apr 17 | 16 | — | #1,107 | 6 |
| 2006 | Apr 24 | 17 | — | #1,105 | 6 |
| 2006 | May 1 | 18 | — | #1,107 | 6 |
| 2006 | May 8 | 19 | — | #1,106 | 6 |
| 2006 | May 15 | 20 | — | #1,107 | 6 |
| 2006 | May 22 | 21 | — | #1,104 | 6 |
| 2006 | May 29 | 22 | — | #1,114 | 6 |
| 2006 | Jun 5 | 23 | — | #1,114 | 6 |
| 2006 | Jun 12 | 24 | — | #1,044 | 7 |
| 2006 | Jun 19 | 25 | — | #1,038 | 7 |
| 2006 | Jun 26 | 26 | — | #1,018 | 8 |
| 2006 | Jul 3 | 27 | — | #1,018 | 8 |
| 2006 | Jul 10 | 28 | — | #1,058 | 7 |
| 2006 | Jul 17 | 29 | — | #1,065 | 7 |
| 2006 | Jul 24 | 30 | — | #1,061 | 7 |
| 2006 | Jul 31 | 31 | — | #1,062 | 7 |
| 2006 | Aug 7 | 32 | — | #1,059 | 7 |
| 2006 | Aug 14 | 33 | — | #1,063 | 7 |
| 2006 | Aug 21 | 34 | — | #1,055 | 7 |
| 2006 | Aug 28 | 35 | — | #1,050 | 7 |
| 2006 | Sep 4 | 36 | — | #1,050 | 7 |
| 2006 | Sep 11 | 37 | — | #1,095 | 6 |
| 2006 | Sep 18 | 38 | — | #1,085 | 6 |
| 2006 | Sep 25 | 39 | — | #1,087 | 6 |
| 2006 | Oct 2 | 40 | — | #1,058 | 7 |
| 2006 | Oct 9 | 41 | — | #1,090 | 6 |
| 2006 | Oct 16 | 42 | — | #1,088 | 6 |
| 2006 | Oct 23 | 43 | — | #1,092 | 6 |
| 2006 | Oct 30 | 44 | — | #1,097 | 6 |
| 2006 | Nov 6 | 45 | — | #1,104 | 6 |
| 2006 | Nov 13 | 46 | — | #1,102 | 6 |
| 2006 | Nov 20 | 47 | — | #1,093 | 6 |
| 2006 | Nov 27 | 48 | — | #1,086 | 6 |
| 2006 | Dec 4 | 49 | — | #1,088 | 6 |
| 2006 | Dec 11 | 50 | — | #1,088 | 6 |
| 2006 | Dec 18 | 51 | — | #1,088 | 6 |
| 2006 | Dec 25 | 52 | — | #1,088 | 6 |
| 2007 | Jan 1 | 1 | — | #1,088 | 6 |
| 2007 | Jan 8 | 2 | — | #1,089 | 6 |
| 2007 | Jan 15 | 3 | — | #1,089 | 6 |
| 2007 | Jan 22 | 4 | — | #1,089 | 6 |
| 2007 | Jan 29 | 5 | — | #1,091 | 6 |
| 2007 | Feb 5 | 6 | — | #1,088 | 6 |
| 2007 | Feb 12 | 7 | — | #1,085 | 6 |
| 2007 | Feb 19 | 8 | — | #1,084 | 6 |
| 2007 | Feb 26 | 9 | — | #1,085 | 6 |
| 2007 | Mar 5 | 10 | — | #1,074 | 6 |
| 2007 | Mar 12 | 11 | — | #1,074 | 6 |
| 2007 | Mar 19 | 12 | — | #1,061 | 6 |
| 2007 | Mar 26 | 13 | — | #1,061 | 6 |
| 2007 | Apr 2 | 14 | — | #1,059 | 6 |
| 2007 | Apr 9 | 15 | — | #1,060 | 6 |
| 2007 | Apr 16 | 16 | — | #1,027 | 7 |
| 2007 | Apr 23 | 17 | — | #1,027 | 7 |
| 2007 | Apr 30 | 18 | — | #1,023 | 7 |
| 2007 | May 7 | 19 | — | #1,056 | 6 |
| 2007 | May 14 | 20 | — | #1,056 | 6 |
| 2007 | May 21 | 21 | — | #1,060 | 6 |
| 2007 | May 28 | 22 | — | #1,067 | 6 |
| 2007 | Jun 4 | 23 | — | #1,067 | 6 |
| 2007 | Jun 11 | 24 | — | #1,284 | 3 |
| 2007 | Jun 18 | 25 | — | #1,286 | 3 |
| 2007 | Jun 25 | 26 | — | #1,290 | 3 |
| 2007 | Jul 2 | 27 | — | #1,290 | 3 |
| 2007 | Jul 9 | 28 | — | #1,209 | 4 |
| 2007 | Jul 16 | 29 | — | #1,210 | 4 |
| 2007 | Jul 23 | 30 | — | #1,215 | 4 |
| 2007 | Jul 30 | 31 | — | #1,217 | 4 |
| 2007 | Aug 6 | 32 | — | #1,222 | 4 |
| 2007 | Aug 13 | 33 | — | #1,213 | 4 |
| 2007 | Aug 20 | 34 | — | #1,212 | 4 |
| 2007 | Aug 27 | 35 | — | #1,209 | 4 |
| 2007 | Sep 3 | 36 | — | #1,209 | 4 |
| 2007 | Sep 10 | 37 | — | #1,204 | 4 |
| 2007 | Sep 17 | 38 | — | #1,209 | 4 |
| 2007 | Sep 24 | 39 | — | #1,155 | 5 |
| 2007 | Oct 1 | 40 | — | #1,155 | 5 |
| 2007 | Oct 8 | 41 | — | #1,154 | 5 |
| 2007 | Oct 15 | 42 | — | #1,160 | 5 |
| 2007 | Oct 22 | 43 | — | #1,153 | 5 |
| 2007 | Oct 29 | 44 | — | #1,151 | 5 |
| 2007 | Nov 5 | 45 | — | #1,153 | 5 |
| 2007 | Nov 12 | 46 | — | #1,161 | 5 |
| 2007 | Nov 19 | 47 | — | #1,161 | 5 |
| 2007 | Nov 26 | 48 | — | #1,168 | 5 |
| 2007 | Dec 3 | 49 | — | #1,170 | 5 |
| 2007 | Dec 10 | 50 | — | #1,174 | 5 |
| 2007 | Dec 17 | 51 | — | #1,174 | 5 |
| 2007 | Dec 24 | 52 | — | #1,176 | 5 |
| 2007 | Dec 31 | 1 | — | #1,176 | 5 |
| 2008 | Jan 7 | 2 | — | #1,177 | 5 |
| 2008 | Jan 14 | 3 | — | #1,178 | 5 |
| 2008 | Jan 21 | 4 | — | #1,178 | 5 |
| 2008 | Jan 28 | 5 | — | #1,180 | 5 |
| 2008 | Feb 4 | 6 | — | #1,185 | 5 |
| 2008 | Feb 11 | 7 | — | #1,184 | 5 |
| 2008 | Feb 18 | 8 | — | #1,185 | 5 |
| 2008 | Feb 25 | 9 | — | #1,186 | 5 |
| 2008 | Mar 3 | 10 | — | #1,189 | 5 |
| 2008 | Mar 10 | 11 | — | #1,197 | 5 |
| 2008 | Mar 17 | 12 | — | #1,197 | 5 |
| 2008 | Mar 24 | 13 | — | #1,185 | 5 |
| 2008 | Mar 31 | 14 | — | #1,185 | 5 |
| 2008 | Apr 7 | 15 | — | #1,179 | 5 |
| 2008 | Apr 14 | 16 | — | #1,237 | 4 |
| 2008 | Apr 21 | 17 | — | #1,235 | 4 |
| 2008 | Apr 28 | 18 | — | #1,229 | 4 |
| 2008 | May 5 | 19 | — | #1,225 | 4 |
| 2008 | May 12 | 20 | — | #1,226 | 4 |
| 2008 | May 19 | 21 | — | #1,221 | 4 |
| 2008 | May 26 | 22 | — | #1,220 | 4 |
| 2008 | Jun 2 | 23 | — | #1,220 | 4 |
| 2008 | Jun 9 | 24 | — | #1,227 | 4 |
| 2008 | Jun 16 | 25 | — | #1,231 | 4 |
| 2008 | Jun 23 | 26 | — | #1,318 | 3 |
| 2008 | Jun 30 | 27 | — | #1,318 | 3 |
| 2008 | Jul 7 | 28 | — | #1,466 | 2 |
| 2008 | Jul 14 | 29 | — | #1,475 | 2 |
| 2008 | Jul 21 | 30 | — | #1,484 | 2 |
| 2008 | Jul 28 | 31 | — | #1,489 | 2 |
| 2008 | Aug 4 | 32 | — | #1,489 | 2 |
| 2008 | Aug 11 | 33 | — | #1,486 | 2 |
| 2008 | Aug 18 | 34 | — | #1,489 | 2 |
| 2008 | Aug 25 | 35 | — | #1,500 | 2 |
| 2008 | Sep 1 | 36 | — | #1,500 | 2 |
| 2008 | Sep 8 | 37 | — | #1,500 | 2 |
| 2008 | Sep 15 | 38 | — | #1,492 | 2 |
| 2008 | Sep 22 | 39 | — | #1,880 | 1 |
| 2008 | Sep 29 | 40 | — | #1,885 | 1 |
| 2008 | Oct 6 | 41 | — | #1,899 | 1 |
| 2008 | Oct 13 | 42 | — | #1,909 | 1 |
| 2008 | Oct 20 | 43 | — | #1,920 | 1 |
| 2008 | Oct 27 | 44 | — | #1,886 | 1 |
| 2008 | Nov 3 | 45 | — | #1,835 | 1 |
| 2008 | Nov 10 | 46 | — | #1,828 | 1 |
| 2008 | Nov 17 | 47 | — | #1,823 | 1 |
| 2008 | Nov 24 | 48 | — | #1,823 | 1 |
| 2008 | Dec 1 | 49 | — | #1,824 | 1 |
| 2008 | Dec 8 | 50 | — | #1,828 | 1 |
| 2008 | Dec 15 | 51 | — | #1,822 | 1 |
| 2008 | Dec 22 | 52 | — | #1,823 | 1 |
| 2008 | Dec 29 | 1 | — | #1,823 | 1 |
| 2009 | Jan 5 | 2 | — | #1,818 | 2 |
| 2009 | Jan 12 | 3 | — | #1,818 | 2 |
| 2009 | Jan 19 | 4 | — | #1,818 | 2 |
| 2009 | Jan 26 | 5 | — | #1,818 | 2 |
| 2009 | Feb 2 | 6 | — | #1,811 | 2 |
| 2009 | Feb 9 | 7 | — | #1,807 | 2 |
| 2009 | Feb 16 | 8 | — | #1,802 | 2 |
| 2009 | Feb 23 | 9 | — | #1,799 | 2 |
| 2009 | Mar 2 | 10 | — | #1,797 | 2 |
| 2009 | Mar 9 | 11 | — | #1,796 | 2 |
| 2009 | Mar 16 | 12 | — | #1,796 | 2 |
| 2009 | Mar 23 | 13 | — | #1,787 | 2 |
| 2009 | Mar 30 | 14 | — | #1,787 | 2 |
| 2009 | Apr 6 | 15 | — | #1,779 | 2 |
| 2009 | Apr 13 | 16 | — | #1,715 | 2 |
| 2009 | Apr 20 | 17 | — | #1,712 | 2 |
| 2009 | Apr 27 | 18 | — | #1,708 | 2 |
| 2009 | May 4 | 19 | — | #1,710 | 2 |
| 2009 | May 11 | 20 | — | #1,713 | 2 |
| 2009 | May 18 | 21 | — | #1,701 | 2 |
| 2009 | May 25 | 22 | — | #1,694 | 2 |
| 2009 | Jun 1 | 23 | — | #1,694 | 2 |
| 2009 | Jun 8 | 24 | — | #1,610 | 2 |
| 2009 | Jun 15 | 25 | — | #1,605 | 2 |
| 2009 | Jun 22 | 26 | — | #1,591 | 2 |
| 2009 | Jun 29 | 27 | — | #1,591 | 2 |
| 2009 | Jul 6 | 28 | — | #1,454 | 3 |
| 2009 | Jul 13 | 29 | — | #1,441 | 3 |
| 2009 | Jul 20 | 30 | — | #1,430 | 3 |
| 2009 | Jul 27 | 31 | — | #1,426 | 3 |
| 2009 | Aug 3 | 32 | — | #1,423 | 3 |
| 2009 | Aug 10 | 33 | — | #1,408 | 3 |
| 2009 | Aug 17 | 34 | — | #1,405 | 3 |
| 2009 | Aug 24 | 35 | — | #1,392 | 3 |
| 2009 | Aug 31 | 36 | — | #1,400 | 3 |
| 2009 | Sep 7 | 37 | — | #1,400 | 3 |
| 2009 | Sep 14 | 38 | — | #1,340 | 3 |
| 2009 | Sep 21 | 39 | — | #1,323 | 3 |
| 2009 | Sep 28 | 40 | — | #1,587 | 1 |
| 2009 | Oct 5 | 41 | — | #1,581 | 1 |
| 2009 | Oct 12 | 42 | — | #1,564 | 1 |
| 2009 | Oct 19 | 43 | — | #1,555 | 1 |
| 2009 | Oct 26 | 44 | — | #1,542 | 1 |
| 2009 | Nov 2 | 45 | — | #1,619 | 1 |
| 2009 | Nov 9 | 46 | — | #1,616 | 1 |
| 2009 | Nov 16 | 47 | — | #1,609 | 1 |
| 2009 | Nov 23 | 48 | — | #1,605 | 1 |
| 2009 | Nov 30 | 49 | — | #1,606 | 1 |
| 2009 | Dec 7 | 50 | — | #1,600 | 1 |
| 2009 | Dec 14 | 51 | — | #1,600 | 1 |
| 2009 | Dec 21 | 52 | — | #1,603 | 1 |
| 2009 | Dec 28 | 53 | — | #1,597 | 1 |
| 2010 | Jan 4 | 1 | — | #1,596 | 1 |
| 2010 | Jan 11 | 2 | — | #1,598 | 1 |
| 2010 | Jan 18 | 3 | — | #1,597 | 1 |
| 2010 | Jan 25 | 4 | — | #1,597 | 1 |
| 2010 | Feb 1 | 5 | — | #1,593 | 1 |
| 2010 | Feb 8 | 6 | — | #1,591 | 1 |