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 |
|---|---|---|---|---|---|
| 1998 | Jul 27 | 31 | — | #1,332 | 1 |
| 1998 | Aug 3 | 32 | — | #1,332 | 1 |
| 1998 | Aug 10 | 33 | — | #1,325 | 1 |
| 1998 | Aug 17 | 34 | — | #1,330 | 1 |
| 1998 | Aug 24 | 35 | — | #1,329 | 1 |
| 1998 | Aug 31 | 36 | — | #1,338 | 1 |
| 1998 | Sep 7 | 37 | — | #1,338 | 1 |
| 1998 | Sep 14 | 38 | — | #1,309 | 1 |
| 1998 | Sep 21 | 39 | — | #1,301 | 1 |
| 1998 | Sep 28 | 40 | — | #1,304 | 1 |
| 1998 | Oct 5 | 41 | — | #1,295 | 1 |
| 1998 | Oct 12 | 42 | — | #1,320 | 1 |
| 1998 | Oct 19 | 43 | — | #1,320 | 1 |
| 1998 | Oct 26 | 44 | — | #1,322 | 1 |
| 1998 | Nov 2 | 45 | — | #1,324 | 1 |
| 1998 | Nov 9 | 46 | — | #1,325 | 1 |
| 1998 | Nov 16 | 47 | — | #1,348 | 1 |
| 1998 | Nov 23 | 48 | — | #1,342 | 1 |
| 1998 | Nov 30 | 49 | — | #1,273 | 2 |
| 1998 | Dec 7 | 50 | — | #1,266 | 2 |
| 1998 | Dec 14 | 51 | — | #1,256 | 2 |
| 1998 | Dec 21 | 52 | — | #1,256 | 2 |
| 1998 | Dec 28 | 53 | — | #1,256 | 2 |
| 1999 | Jan 4 | 1 | — | #1,256 | 2 |
| 1999 | Jan 11 | 2 | — | #1,244 | 2 |
| 1999 | Jan 18 | 3 | — | #1,244 | 2 |
| 1999 | Jan 25 | 4 | — | #1,244 | 2 |
| 1999 | Feb 1 | 5 | — | #1,242 | 2 |
| 1999 | Feb 15 | 7 | — | #1,242 | 2 |
| 1999 | Feb 22 | 8 | — | #1,240 | 2 |
| 1999 | Mar 1 | 9 | — | #1,238 | 2 |
| 1999 | Mar 8 | 10 | — | #1,233 | 2 |
| 1999 | Mar 15 | 11 | — | #1,233 | 2 |
| 1999 | Mar 22 | 12 | — | #1,233 | 2 |
| 1999 | Mar 29 | 13 | — | #1,233 | 2 |
| 1999 | Apr 5 | 14 | — | #1,233 | 2 |
| 1999 | Apr 12 | 15 | — | #1,230 | 2 |
| 1999 | Apr 19 | 16 | — | #1,225 | 2 |
| 1999 | Apr 26 | 17 | — | #1,222 | 2 |
| 1999 | May 3 | 18 | — | #1,218 | 2 |
| 1999 | May 10 | 19 | — | #1,224 | 2 |
| 1999 | May 17 | 20 | — | #1,223 | 2 |
| 1999 | May 24 | 21 | — | #1,227 | 2 |
| 1999 | May 31 | 22 | — | #1,227 | 2 |
| 1999 | Jun 7 | 23 | — | #1,229 | 2 |
| 1999 | Jun 14 | 24 | — | #1,220 | 2 |
| 1999 | Jun 21 | 25 | — | #1,227 | 2 |
| 1999 | Jun 28 | 26 | — | #1,227 | 2 |
| 1999 | Jul 5 | 27 | — | #1,142 | 4 |
| 1999 | Jul 12 | 28 | — | #1,149 | 4 |
| 1999 | Jul 19 | 29 | — | #1,152 | 4 |
| 1999 | Jul 26 | 30 | — | #1,199 | 3 |
| 1999 | Aug 2 | 31 | — | #1,201 | 3 |
| 1999 | Aug 9 | 32 | — | #1,198 | 3 |
| 1999 | Aug 16 | 33 | — | #1,198 | 3 |
| 1999 | Aug 23 | 34 | — | #1,187 | 3 |
| 1999 | Aug 30 | 35 | — | #1,192 | 3 |
| 1999 | Sep 6 | 36 | — | #1,192 | 3 |
| 1999 | Sep 13 | 37 | — | #1,189 | 3 |
| 1999 | Sep 20 | 38 | — | #1,190 | 3 |
| 1999 | Sep 27 | 39 | — | #1,194 | 3 |
| 1999 | Oct 4 | 40 | — | #1,195 | 3 |
| 1999 | Oct 11 | 41 | — | #1,189 | 3 |
| 1999 | Oct 18 | 42 | — | #1,204 | 3 |
| 1999 | Oct 25 | 43 | — | #1,198 | 3 |
| 1999 | Nov 1 | 44 | — | #1,150 | 4 |
| 1999 | Nov 8 | 45 | — | #1,151 | 4 |
| 1999 | Nov 15 | 46 | — | #1,152 | 4 |
| 1999 | Nov 22 | 47 | — | #1,156 | 4 |
| 1999 | Nov 29 | 48 | — | #1,198 | 3 |
| 1999 | Dec 6 | 49 | — | #1,192 | 3 |
| 1999 | Dec 13 | 50 | — | #1,190 | 3 |
| 1999 | Dec 20 | 51 | — | #1,190 | 3 |
| 1999 | Dec 27 | 52 | — | #1,190 | 3 |
| 2000 | Jan 10 | 2 | — | #1,200 | 2 |
| 2000 | Jan 17 | 3 | — | #1,200 | 2 |
| 2000 | Jan 24 | 4 | — | #1,200 | 2 |
| 2000 | Jan 31 | 5 | — | #1,207 | 2 |
| 2000 | Feb 7 | 6 | — | #1,206 | 2 |
| 2000 | Feb 14 | 7 | — | #1,204 | 2 |
| 2000 | Feb 21 | 8 | — | #1,205 | 2 |
| 2000 | Feb 28 | 9 | — | #1,205 | 2 |
| 2000 | Mar 6 | 10 | — | #1,205 | 2 |
| 2000 | Mar 13 | 11 | — | #1,208 | 2 |
| 2000 | Mar 20 | 12 | — | #1,213 | 2 |
| 2000 | Mar 27 | 13 | — | #1,213 | 2 |
| 2000 | Apr 3 | 14 | — | #1,213 | 2 |
| 2000 | Apr 10 | 15 | — | #1,154 | 3 |
| 2000 | Apr 17 | 16 | — | #1,155 | 3 |
| 2000 | Apr 24 | 17 | — | #1,152 | 3 |
| 2000 | May 1 | 18 | — | #1,148 | 3 |
| 2000 | May 8 | 19 | — | #1,159 | 3 |
| 2000 | May 15 | 20 | — | #1,162 | 3 |
| 2000 | May 22 | 21 | — | #1,162 | 3 |
| 2000 | May 29 | 22 | — | #1,176 | 3 |
| 2000 | Jun 5 | 23 | — | #1,176 | 3 |
| 2000 | Jun 12 | 24 | — | #1,161 | 3 |
| 2000 | Jun 19 | 25 | — | #1,152 | 3 |
| 2000 | Jun 26 | 26 | — | #1,160 | 3 |
| 2000 | Jul 3 | 27 | — | #1,160 | 3 |
| 2000 | Jul 10 | 28 | — | #1,216 | 2 |
| 2000 | Jul 17 | 29 | — | #1,221 | 2 |
| 2000 | Jul 24 | 30 | — | #1,219 | 2 |
| 2000 | Jul 31 | 31 | — | #1,215 | 2 |
| 2000 | Aug 7 | 32 | — | #1,219 | 2 |
| 2000 | Aug 14 | 33 | — | #1,224 | 2 |
| 2000 | Aug 21 | 34 | — | #1,225 | 2 |
| 2000 | Aug 28 | 35 | — | #1,218 | 2 |
| 2000 | Sep 4 | 36 | — | #1,218 | 2 |
| 2000 | Sep 11 | 37 | — | #1,209 | 2 |
| 2000 | Sep 18 | 38 | — | #1,230 | 2 |
| 2000 | Sep 25 | 39 | — | #1,230 | 2 |
| 2000 | Oct 2 | 40 | — | #1,066 | 4 |
| 2000 | Oct 9 | 41 | — | #1,075 | 4 |
| 2000 | Oct 16 | 42 | — | #1,066 | 4 |
| 2000 | Oct 23 | 43 | — | #1,062 | 4 |
| 2000 | Oct 30 | 44 | — | #1,143 | 3 |
| 2000 | Nov 6 | 45 | — | #1,066 | 4 |
| 2000 | Nov 13 | 46 | — | #1,067 | 4 |
| 2000 | Nov 20 | 47 | — | #1,066 | 4 |
| 2000 | Nov 27 | 48 | — | #1,066 | 4 |
| 2000 | Dec 4 | 49 | — | #1,058 | 4 |
| 2000 | Dec 11 | 50 | — | #1,051 | 4 |
| 2000 | Dec 18 | 51 | — | #1,051 | 4 |
| 2000 | Dec 25 | 52 | — | #1,051 | 4 |
| 2001 | Jan 1 | 1 | — | #1,051 | 4 |
| 2001 | Jan 8 | 2 | — | #1,049 | 4 |
| 2001 | Jan 15 | 3 | — | #1,049 | 4 |
| 2001 | Jan 22 | 4 | — | #1,049 | 4 |
| 2001 | Jan 29 | 5 | — | #1,047 | 4 |
| 2001 | Feb 5 | 6 | — | #1,050 | 4 |
| 2001 | Feb 12 | 7 | — | #1,046 | 4 |
| 2001 | Feb 19 | 8 | — | #1,043 | 4 |
| 2001 | Feb 26 | 9 | — | #1,047 | 4 |
| 2001 | Mar 5 | 10 | — | #1,047 | 4 |
| 2001 | Mar 12 | 11 | — | #1,050 | 4 |
| 2001 | Mar 19 | 12 | — | #1,048 | 4 |
| 2001 | Mar 26 | 13 | — | #1,048 | 4 |
| 2001 | Apr 2 | 14 | — | #1,006 | 5 |
| 2001 | Apr 9 | 15 | — | #953 | 6 |
| 2001 | Apr 16 | 16 | — | #949 | 6 |
| 2001 | Apr 23 | 17 | — | #948 | 6 |
| 2001 | Apr 30 | 18 | — | #950 | 6 |
| 2001 | May 7 | 19 | — | #947 | 6 |
| 2001 | May 14 | 20 | — | #944 | 6 |
| 2001 | May 21 | 21 | — | #952 | 6 |
| 2001 | May 28 | 22 | — | #962 | 6 |
| 2001 | Jun 4 | 23 | — | #962 | 6 |
| 2001 | Jun 11 | 24 | — | #973 | 6 |
| 2001 | Jun 18 | 25 | — | #975 | 6 |
| 2001 | Jun 25 | 26 | — | #975 | 6 |
| 2001 | Jul 2 | 27 | — | #975 | 6 |
| 2001 | Jul 9 | 28 | — | #969 | 6 |
| 2001 | Jul 16 | 29 | — | #965 | 6 |
| 2001 | Jul 23 | 30 | — | #959 | 6 |
| 2001 | Jul 30 | 31 | — | #962 | 6 |
| 2001 | Aug 6 | 32 | — | #953 | 6 |
| 2001 | Aug 13 | 33 | — | #953 | 6 |
| 2001 | Aug 20 | 34 | — | #958 | 6 |
| 2001 | Aug 27 | 35 | — | #959 | 6 |
| 2001 | Sep 3 | 36 | — | #959 | 6 |
| 2001 | Sep 10 | 37 | — | #971 | 6 |
| 2001 | Sep 17 | 38 | — | #982 | 6 |
| 2001 | Sep 24 | 39 | — | #944 | 7 |
| 2001 | Oct 1 | 40 | — | #980 | 6 |
| 2001 | Oct 8 | 41 | — | #977 | 6 |
| 2001 | Oct 15 | 42 | — | #980 | 6 |
| 2001 | Oct 22 | 43 | — | #948 | 7 |
| 2001 | Oct 29 | 44 | — | #964 | 7 |
| 2001 | Nov 5 | 45 | — | #1,012 | 6 |
| 2001 | Nov 12 | 46 | — | #1,015 | 6 |
| 2001 | Nov 19 | 47 | — | #1,015 | 6 |
| 2001 | Nov 26 | 48 | — | #1,025 | 6 |
| 2001 | Dec 3 | 49 | — | #1,028 | 6 |
| 2001 | Dec 10 | 50 | — | #1,026 | 6 |
| 2001 | Dec 17 | 51 | — | #1,024 | 6 |
| 2001 | Dec 24 | 52 | — | #1,024 | 6 |
| 2001 | Dec 31 | 1 | — | #1,024 | 6 |
| 2002 | Jan 7 | 2 | — | #1,025 | 6 |
| 2002 | Jan 14 | 3 | — | #1,025 | 6 |
| 2002 | Jan 21 | 4 | — | #1,025 | 6 |
| 2002 | Jan 28 | 5 | — | #1,024 | 6 |
| 2002 | Feb 4 | 6 | — | #1,024 | 6 |
| 2002 | Feb 11 | 7 | — | #1,023 | 6 |
| 2002 | Feb 18 | 8 | — | #1,025 | 6 |
| 2002 | Feb 25 | 9 | — | #1,012 | 6 |
| 2002 | Mar 4 | 10 | — | #1,012 | 6 |
| 2002 | Mar 11 | 11 | — | #1,015 | 6 |
| 2002 | Mar 18 | 12 | — | #1,012 | 6 |
| 2002 | Mar 25 | 13 | — | #1,012 | 6 |
| 2002 | Apr 1 | 14 | — | #1,077 | 5 |
| 2002 | Apr 8 | 15 | — | #1,203 | 3 |
| 2002 | Apr 15 | 16 | — | #1,203 | 3 |
| 2002 | Apr 22 | 17 | — | #1,207 | 3 |
| 2002 | May 6 | 19 | — | #1,211 | 3 |
| 2002 | May 13 | 20 | — | #1,209 | 3 |
| 2002 | May 20 | 21 | — | #1,203 | 3 |
| 2002 | May 27 | 22 | — | #1,214 | 3 |
| 2002 | Jun 3 | 23 | — | #1,214 | 3 |
| 2002 | Jun 10 | 24 | — | #1,211 | 3 |