Ranking history updated: 2026-08-31 10:31 UTC
Momoko Kobori WTA Ranking History
Momoko Kobori's WTA ranking history, with year-by-year summaries plus every available weekly rank, age and points snapshot.
Latest Rank
375
Latest date
Aug 31, 2026
Career high
226
Career-high date
Apr 22, 2019
Career-high points
257
Points-high date
Apr 22, 2019
Best year-end
253
Weeks at #1
0
Coverage: 476 distinct observed ranking weeks, Nov 30, 2015–Aug 31, 2026. 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 |
|---|---|---|---|---|---|
| 2015 | Nov 30 | 49 | 17.3 | #1,271 | 3 |
| 2015 | Dec 7 | 50 | 17.3 | #1,273 | 3 |
| 2015 | Dec 14 | 51 | 17.3 | #1,273 | 3 |
| 2015 | Dec 21 | 52 | 17.3 | #1,281 | 3 |
| 2015 | Dec 28 | 53 | 17.3 | #1,284 | 3 |
| 2016 | Jan 4 | 1 | 17.4 | #1,286 | 3 |
| 2016 | Jan 11 | 2 | 17.4 | #1,285 | 3 |
| 2016 | Jan 18 | 3 | 17.4 | #1,284 | 3 |
| 2016 | Feb 1 | 5 | 17.4 | #1,294 | 3 |
| 2016 | Feb 8 | 6 | 17.5 | #1,291 | 3 |
| 2016 | Feb 15 | 7 | 17.5 | #1,295 | 3 |
| 2016 | Feb 22 | 8 | 17.5 | #1,292 | 3 |
| 2016 | Feb 29 | 9 | 17.5 | #1,292 | 3 |
| 2016 | Mar 7 | 10 | 17.5 | #1,294 | 3 |
| 2016 | Mar 14 | 11 | 17.6 | #1,294 | 3 |
| 2016 | Mar 28 | 13 | 17.6 | #1,288 | 3 |
| 2016 | Apr 4 | 14 | 17.6 | #1,280 | 3 |
| 2016 | Apr 11 | 15 | 17.6 | #1,278 | 3 |
| 2016 | Apr 18 | 16 | 17.7 | #1,274 | 3 |
| 2016 | Apr 25 | 17 | 17.7 | #1,271 | 3 |
| 2016 | May 2 | 18 | 17.7 | #1,268 | 3 |
| 2016 | May 9 | 19 | 17.7 | #1,268 | 3 |
| 2016 | May 16 | 20 | 17.7 | #1,267 | 3 |
| 2016 | May 23 | 21 | 17.8 | #1,263 | 3 |
| 2016 | May 30 | 22 | 17.8 | #1,263 | 3 |
| 2016 | Jun 6 | 23 | 17.8 | #1,259 | 3 |
| 2016 | Jun 13 | 24 | 17.8 | #1,257 | 3 |
| 2016 | Jun 20 | 25 | 17.8 | #1,257 | 3 |
| 2016 | Jun 27 | 26 | 17.8 | #1,255 | 3 |
| 2016 | Jul 4 | 27 | 17.9 | #1,255 | 3 |
| 2016 | Jul 11 | 28 | 17.9 | #1,248 | 3 |
| 2016 | Jul 18 | 29 | 17.9 | #1,263 | 3 |
| 2016 | Jul 25 | 30 | 17.9 | #1,259 | 3 |
| 2016 | Aug 1 | 31 | 17.9 | #1,259 | 3 |
| 2016 | Aug 8 | 32 | 18.0 | #1,248 | 3 |
| 2016 | Aug 15 | 33 | 18.0 | #1,254 | 3 |
| 2016 | Aug 22 | 34 | 18.0 | #1,245 | 3 |
| 2016 | Aug 29 | 35 | 18.0 | #1,246 | 3 |
| 2016 | Sep 5 | 36 | 18.0 | #1,246 | 3 |
| 2016 | Sep 12 | 37 | 18.1 | #762 | 20 |
| 2016 | Sep 19 | 38 | 18.1 | #751 | 21 |
| 2016 | Sep 26 | 39 | 18.1 | #767 | 20 |
| 2016 | Oct 3 | 40 | 18.1 | #763 | 20 |
| 2016 | Oct 10 | 41 | 18.1 | #771 | 20 |
| 2016 | Oct 17 | 42 | 18.2 | #773 | 20 |
| 2016 | Oct 24 | 43 | 18.2 | #596 | 39 |
| 2016 | Oct 31 | 44 | 18.2 | #600 | 39 |
| 2016 | Nov 7 | 45 | 18.2 | #602 | 39 |
| 2016 | Nov 14 | 46 | 18.2 | #597 | 39 |
| 2016 | Nov 21 | 47 | 18.3 | #592 | 40 |
| 2016 | Nov 28 | 48 | 18.3 | #598 | 39 |
| 2016 | Dec 5 | 49 | 18.3 | #600 | 39 |
| 2016 | Dec 12 | 50 | 18.3 | #602 | 39 |
| 2016 | Dec 19 | 51 | 18.3 | #599 | 39 |
| 2016 | Dec 26 | 52 | 18.3 | #604 | 39 |
| 2017 | Jan 2 | 1 | 18.4 | #602 | 39 |
| 2017 | Jan 9 | 2 | 18.4 | #602 | 39 |
| 2017 | Jan 16 | 3 | 18.4 | #602 | 39 |
| 2017 | Jan 23 | 4 | 18.4 | #602 | 39 |
| 2017 | Jan 30 | 5 | 18.4 | #601 | 39 |
| 2017 | Feb 6 | 6 | 18.5 | #603 | 39 |
| 2017 | Feb 13 | 7 | 18.5 | #603 | 39 |
| 2017 | Feb 20 | 8 | 18.5 | #602 | 39 |
| 2017 | Feb 27 | 9 | 18.5 | #599 | 39 |
| 2017 | Mar 6 | 10 | 18.5 | #600 | 39 |
| 2017 | Mar 13 | 11 | 18.6 | #600 | 39 |
| 2017 | Mar 20 | 12 | 18.6 | #603 | 39 |
| 2017 | Mar 27 | 13 | 18.6 | #603 | 39 |
| 2017 | Apr 3 | 14 | 18.6 | #577 | 43 |
| 2017 | Apr 10 | 15 | 18.6 | #571 | 44 |
| 2017 | Apr 17 | 16 | 18.7 | #523 | 54 |
| 2017 | Apr 24 | 17 | 18.7 | #525 | 54 |
| 2017 | May 1 | 18 | 18.7 | #521 | 54 |
| 2017 | May 8 | 19 | 18.7 | #497 | 59 |
| 2017 | May 15 | 20 | 18.7 | #494 | 60 |
| 2017 | May 22 | 21 | 18.7 | #492 | 61 |
| 2017 | May 29 | 22 | 18.8 | #499 | 61 |
| 2017 | Jun 12 | 24 | 18.8 | #423 | 79 |
| 2017 | Jun 19 | 25 | 18.8 | #424 | 80 |
| 2017 | Jun 26 | 26 | 18.8 | #424 | 80 |
| 2017 | Jul 3 | 27 | 18.9 | #431 | 80 |
| 2017 | Jul 17 | 29 | 18.9 | #406 | 86 |
| 2017 | Jul 24 | 30 | 18.9 | #408 | 86 |
| 2017 | Jul 31 | 31 | 18.9 | #411 | 86 |
| 2017 | Aug 7 | 32 | 19.0 | #410 | 86 |
| 2017 | Aug 14 | 33 | 19.0 | #414 | 86 |
| 2017 | Aug 21 | 34 | 19.0 | #415 | 86 |
| 2017 | Aug 28 | 35 | 19.0 | #417 | 86 |
| 2017 | Sep 11 | 37 | 19.1 | #436 | 78 |
| 2017 | Sep 18 | 38 | 19.1 | #439 | 77 |
| 2017 | Sep 25 | 39 | 19.1 | #429 | 78 |
| 2017 | Oct 2 | 40 | 19.1 | #435 | 78 |
| 2017 | Oct 9 | 41 | 19.1 | #422 | 83 |
| 2017 | Oct 16 | 42 | 19.2 | #414 | 87 |
| 2017 | Oct 23 | 43 | 19.2 | #390 | 98 |
| 2017 | Oct 30 | 44 | 19.2 | #378 | 102 |
| 2017 | Nov 6 | 45 | 19.2 | #378 | 102 |
| 2017 | Nov 13 | 46 | 19.2 | #366 | 114 |
| 2017 | Nov 20 | 47 | 19.2 | #353 | 122 |
| 2018 | Jan 1 | 1 | 19.4 | #353 | 122 |
| 2018 | Jan 8 | 2 | 19.4 | #350 | 122 |
| 2018 | Jan 15 | 3 | 19.4 | #352 | 122 |
| 2018 | Jan 29 | 5 | 19.4 | #351 | 122 |
| 2018 | Feb 5 | 6 | 19.5 | #352 | 124 |
| 2018 | Feb 12 | 7 | 19.5 | #350 | 124 |
| 2018 | Feb 19 | 8 | 19.5 | #350 | 124 |
| 2018 | Feb 26 | 9 | 19.5 | #350 | 124 |
| 2018 | Mar 5 | 10 | 19.5 | #347 | 124 |
| 2018 | Mar 19 | 12 | 19.6 | #336 | 133 |
| 2018 | Apr 2 | 14 | 19.6 | #337 | 130 |
| 2018 | Apr 9 | 15 | 19.6 | #334 | 130 |
| 2018 | Apr 16 | 16 | 19.6 | #347 | 121 |
| 2018 | Apr 23 | 17 | 19.7 | #344 | 125 |
| 2018 | Apr 30 | 18 | 19.7 | #345 | 125 |
| 2018 | May 7 | 19 | 19.7 | #325 | 141 |
| 2018 | May 14 | 20 | 19.7 | #295 | 169 |
| 2018 | May 21 | 21 | 19.7 | #296 | 169 |
| 2018 | May 28 | 22 | 19.8 | #295 | 169 |
| 2018 | Jun 11 | 24 | 19.8 | #253 | 201 |
| 2018 | Jun 18 | 25 | 19.8 | #250 | 201 |
| 2018 | Jun 25 | 26 | 19.8 | #246 | 209 |
| 2018 | Jul 2 | 27 | 19.9 | #245 | 209 |
| 2018 | Jul 16 | 29 | 19.9 | #249 | 205 |
| 2018 | Jul 23 | 30 | 19.9 | #252 | 205 |
| 2018 | Jul 30 | 31 | 19.9 | #250 | 216 |
| 2018 | Aug 6 | 32 | 20.0 | #251 | 216 |
| 2018 | Aug 13 | 33 | 20.0 | #253 | 216 |
| 2018 | Aug 20 | 34 | 20.0 | #252 | 216 |
| 2018 | Aug 27 | 35 | 20.0 | #252 | 216 |
| 2018 | Sep 10 | 37 | 20.1 | #248 | 225 |
| 2018 | Sep 17 | 38 | 20.1 | #243 | 225 |
| 2018 | Sep 24 | 39 | 20.1 | #240 | 225 |
| 2018 | Oct 1 | 40 | 20.1 | #248 | 225 |
| 2018 | Oct 8 | 41 | 20.1 | #250 | 221 |
| 2018 | Oct 15 | 42 | 20.1 | #253 | 217 |
| 2018 | Oct 22 | 43 | 20.2 | #241 | 237 |
| 2018 | Oct 29 | 44 | 20.2 | #245 | 233 |
| 2018 | Nov 5 | 45 | 20.2 | #250 | 233 |
| 2018 | Nov 12 | 46 | 20.2 | #255 | 221 |
| 2018 | Nov 19 | 47 | 20.2 | #258 | 213 |
| 2018 | Nov 26 | 48 | 20.3 | #256 | 213 |
| 2018 | Dec 3 | 49 | 20.3 | #256 | 213 |
| 2018 | Dec 10 | 50 | 20.3 | #256 | 213 |
| 2018 | Dec 17 | 51 | 20.3 | #256 | 213 |
| 2018 | Dec 24 | 52 | 20.3 | #255 | 213 |
| 2018 | Dec 31 | 1 | 20.4 | #253 | 213 |
| 2019 | Jan 7 | 2 | 20.4 | #253 | 213 |
| 2019 | Jan 14 | 3 | 20.4 | #255 | 213 |
| 2019 | Jan 28 | 5 | 20.4 | #251 | 217 |
| 2019 | Feb 4 | 6 | 20.5 | #252 | 217 |
| 2019 | Feb 11 | 7 | 20.5 | #251 | 217 |
| 2019 | Feb 18 | 8 | 20.5 | #252 | 217 |
| 2019 | Feb 25 | 9 | 20.5 | #250 | 224 |
| 2019 | Mar 4 | 10 | 20.5 | #245 | 224 |
| 2019 | Mar 18 | 12 | 20.6 | #255 | 215 |
| 2019 | Apr 1 | 14 | 20.6 | #242 | 227 |
| 2019 | Apr 8 | 15 | 20.6 | #231 | 244 |
| 2019 | Apr 15 | 16 | 20.6 | #232 | 244 |
| 2019 | Apr 22 | 17 | 20.7 | #226 | 257 |
| 2019 | Apr 29 | 18 | 20.7 | #227 | 257 |
| 2019 | May 6 | 19 | 20.7 | #237 | 237 |
| 2019 | May 13 | 20 | 20.7 | #253 | 216 |
| 2019 | May 20 | 21 | 20.7 | #251 | 216 |
| 2019 | May 27 | 22 | 20.8 | #254 | 216 |
| 2019 | Jun 10 | 24 | 20.8 | #262 | 204 |
| 2019 | Jun 17 | 25 | 20.8 | #264 | 204 |
| 2019 | Jun 24 | 26 | 20.8 | #271 | 196 |
| 2019 | Jul 1 | 27 | 20.9 | #254 | 213 |
| 2019 | Jul 15 | 29 | 20.9 | #259 | 213 |
| 2019 | Jul 22 | 30 | 20.9 | #253 | 217 |
| 2019 | Jul 29 | 31 | 20.9 | #267 | 206 |
| 2019 | Aug 5 | 32 | 21.0 | #270 | 206 |
| 2019 | Aug 12 | 33 | 21.0 | #273 | 206 |
| 2019 | Aug 19 | 34 | 21.0 | #273 | 206 |
| 2019 | Aug 26 | 35 | 21.0 | #273 | 206 |
| 2019 | Sep 9 | 37 | 21.0 | #277 | 210 |
| 2019 | Sep 16 | 38 | 21.1 | #278 | 210 |
| 2019 | Sep 23 | 39 | 21.1 | #277 | 210 |
| 2019 | Sep 30 | 40 | 21.1 | #276 | 210 |
| 2019 | Oct 7 | 41 | 21.1 | #275 | 210 |
| 2019 | Oct 14 | 42 | 21.1 | #271 | 210 |
| 2019 | Oct 21 | 43 | 21.2 | #317 | 165 |
| 2019 | Nov 4 | 45 | 21.2 | #326 | 165 |
| 2019 | Nov 11 | 46 | 21.2 | #324 | 165 |
| 2019 | Nov 18 | 47 | 21.2 | #322 | 165 |
| 2019 | Nov 25 | 48 | 21.3 | #322 | 165 |
| 2019 | Dec 2 | 49 | 21.3 | #323 | 165 |
| 2019 | Dec 9 | 50 | 21.3 | #322 | 165 |
| 2019 | Dec 16 | 51 | 21.3 | #321 | 165 |
| 2019 | Dec 23 | 52 | 21.3 | #322 | 165 |
| 2019 | Dec 30 | 1 | 21.4 | #322 | 165 |
| 2020 | Jan 6 | 2 | 21.4 | #321 | 165 |
| 2020 | Jan 13 | 3 | 21.4 | #320 | 165 |
| 2020 | Jan 20 | 4 | 21.4 | #318 | 169 |
| 2020 | Jan 27 | 5 | 21.4 | #318 | 169 |
| 2020 | Feb 3 | 6 | 21.5 | #315 | 163 |
| 2020 | Feb 10 | 7 | 21.5 | #316 | 163 |
| 2020 | Feb 17 | 8 | 21.5 | #320 | 163 |
| 2020 | Feb 24 | 9 | 21.5 | #326 | 156 |
| 2020 | Mar 2 | 10 | 21.5 | #326 | 156 |