Yakovlev Andrey
From Simferopol, Russia
EMA: 15990293
Common russian riichi rating (CRR)
Rating date May 3, 2026 (latest changes May 3, 2026).
89 place (464.77).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85
p1 = (733.33 * 1.80 * 0.43 + 1000 * 0.90 * 0.86 + 666.67 * 2 * 0.86 + 652.17 * 1.20 * 1 + 565.22 * 1.20 * 1 + 263.16 * 1.30 * 1 + 736.84 * 2.10 * 1) / (1.80 * 0.43 + 0.90 * 0.86 + 2 * 0.86 + 1.20 * 1 + 1.20 * 1 + 1.30 * 1 + 2.10 * 1) = 643.7280489164817
p2 = (736.84 * 2.10 * 1 + 666.67 * 2 * 0.86 + 652.17 * 1.20 * 1 + 1000 * 0.90 * 0.86) / max_coefficients = 285.80269360269364
score = 643.7280489164817 * 0.5 + 285.80269360269364 * 0.5 = 464.7653712595877
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-05-03 | 91 -> 89 | 463.81 -> 464.77 | |
| 2026-05-02 | 92 -> 91 | 463.81 | |
| 2026-05-01 | 94 -> 92 | 463.81 | |
| 2026-04-27 | 89 -> 94 | 471.72 -> 463.81 |
South Dragon Cup II: 100% -> 86% Happy Bamboo 2024: 57% -> 43% |
| 2026-04-26 | 90 -> 89 | 471.72 | |
| 2026-04-19 | 105 -> 90 | 432.59 -> 471.72 |
The Southern Dragon Cup 2026: 0% -> 100% |
| 2026-04-05 | 103 -> 105 | 432.59 | |
| 2026-03-30 | 104 -> 103 | 429.83 -> 432.59 |
Seihoku spring tournament 2024: 14% -> 0% |
| 2026-03-29 | 101 -> 104 | 437.25 -> 429.83 |
The Southern Coon Mini Cup: 100% -> 86% |
| 2026-03-21 | 89 -> 101 | 472.47 -> 437.25 |
The Southern Coon Mini Cup 2026: 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 737 |
|
6/20 | 100% | 2.10 | RR | The Southern Dragon Cup 2026 | Simferopol | |
| 2 | 263 |
|
15/20 | 100% | 1.30 | CRR | The Southern Coon Mini Cup 2026 | Simferopol | |
| 3 | 565 |
|
11/24 | 100% | 1.20 | CRR | Riichi on fire | Simferopol | |
| 4 | 652 |
|
9/24 | 100% | 1.20 | CRR | Pands in discards | Simferopol | |
| 5 | 667 |
|
6/16 | 86% | 2.00 | RR | South Dragon Cup II | Simferopol | |
| 6 | 1000 |
|
🥇 | 1/12 | 86% | 0.90 | CRR | The Southern Coon Mini Cup | Simferopol |
| 7 | 733 |
|
5/16 | 43% | 1.80 | CRR | Happy Bamboo 2024 | Simferopol | |
| 8 | 478 |
|
25/47 | 0% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 9 | 460 |
|
35/64 | 0% | 3.45 | EMA | Saint Petersburg Open 2019 | Saint Petersburg | |
| 10 | 639 |
|
31/84 | 0% | 4.20 | EMA | Haru Shanten 2019 | Perm | |
| 11 | 84 |
|
77/84 | 0% | 3.40 | EMA | VI Russian Riichi Championship 2017 | Saint Petersburg | |
| 12 | 859 |
|
11/72 | 0% | 3.25 | EMA | Saint Petersburg Riichi Open 2016 | Saint Petersburg | |
| 13 | 43 |
|
23/24 | 0% | 1.40 | EMA | Crimean Riichi Open 2015 | Simferopol | |
| 14 | 630 |
|
11/28 | 0% | 1.50 | EMA | Crimean Riichi Open 2013 | Simferopol |