Yakovlev Andrey
From Simferopol, Russia
EMA: 15990293
Internal rating (RR)
Rating date Sept. 5, 2025 (latest changes Sept. 3, 2025).
170 place (218.24).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (478.26 * 2.10 * 0.57 + 666.67 * 2 * 1 + 0 + 0 + 0) / (2.10 * 0.57 + 2 * 1 + 1 + 1 + 1) = 307.61749307251364
p2 = (666.67 * 2 * 1 + 478.26 * 2.10 * 0.57) / max_coefficients = 128.86554054054054
score = 307.61749307251364 * 0.5 + 128.86554054054054 * 0.5 = 218.2415168065271
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-03 | 175 -> 170 | 218.24 | |
| 2025-09-01 | 176 -> 175 | 216.55 -> 218.24 | |
| 2025-08-31 | 173 -> 176 | 216.55 | |
| 2025-08-09 | 174 -> 173 | 216.55 | |
| 2025-08-04 | 174 | 215.93 -> 216.55 | |
| 2025-08-03 | 168 -> 174 | 215.93 | |
| 2025-07-30 | 166 -> 168 | 224.55 -> 215.93 |
Seihoku spring tournament 2024: 71% -> 57% |
| 2025-07-13 | 163 -> 166 | 224.55 | |
| 2025-07-12 | 163 | 223.30 -> 224.55 | |
| 2025-07-03 | 165 -> 163 | 223.30 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 667 |
|
6/16 | 100% | 2.00 | RR | South Dragon Cup II | Simferopol | |
| 2 | 478 |
|
25/47 | 57% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 3 | 460 |
|
35/64 | 0% | 3.45 | EMA | Saint Petersburg Open 2019 | Saint Petersburg | |
| 4 | 639 |
|
31/84 | 0% | 4.20 | EMA | Haru Shanten 2019 | Perm | |
| 5 | 84 |
|
77/84 | 0% | 3.40 | EMA | VI Russian Riichi Championship 2017 | Saint Petersburg | |
| 6 | 859 |
|
11/72 | 0% | 3.25 | EMA | Saint Petersburg Riichi Open 2016 | Saint Petersburg | |
| 7 | 43 |
|
23/24 | 0% | 1.40 | EMA | Crimean Riichi Open 2015 | Simferopol | |
| 8 | 630 |
|
11/28 | 0% | 1.50 | EMA | Crimean Riichi Open 2013 | Simferopol |