Sviridova Valentina
From Moscow, Russia
EMA: 15990330
Common russian riichi rating (CRR)
Rating date Dec. 10, 2025 (latest changes Dec. 9, 2025).
224 place (195.60).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (392.16 * 3.05 * 0.29 + 470.59 * 3.05 * 0.43 + 280.70 * 3.90 * 1 + 0 + 0) / (3.05 * 0.29 + 3.05 * 0.43 + 3.90 * 1 + 1 + 1) = 253.95813515064157
p2 = (280.70 * 3.90 * 1 + 470.59 * 3.05 * 0.43 + 392.16 * 3.05 * 0.29) / max_coefficients = 137.23277591973246
score = 253.95813515064157 * 0.5 + 137.23277591973246 * 0.5 = 195.595455535187
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-12-09 | 213 -> 224 | 207.99 -> 195.60 |
Agari Summer Tournament 2024: 57% -> 43% |
| 2025-12-07 | 208 -> 213 | 207.99 | |
| 2025-12-06 | 205 -> 208 | 207.99 | |
| 2025-12-04 | 206 -> 205 | 207.99 | |
| 2025-11-22 | 204 -> 206 | 207.99 | |
| 2025-11-19 | 205 -> 204 | 207.99 | |
| 2025-11-12 | 208 -> 205 | 207.99 | |
| 2025-11-10 | 204 -> 208 | 216.80 -> 207.99 |
Agari Spring Tournament 2024: 43% -> 29% |
| 2025-11-05 | 205 -> 204 | 216.80 | |
| 2025-11-04 | 236 -> 205 | 156.75 -> 216.80 |
XI Russian Championship: 0% -> 100% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 281 |
|
42/58 | 100% | 3.90 | RR | XI Russian Championship | Moscow | |
| 2 | 471 |
|
28/52 | 43% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 3 | 392 |
|
32/52 | 29% | 3.05 | RR | Agari Spring Tournament 2024 | Moscow | |
| 4 | 126 |
|
98/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 5 | 189 |
|
91/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship | Moscow | |
| 6 | 154 |
|
34/40 | 0% | 2.90 | RR | Summer Cup 2019 | Saint Petersburg | |
| 7 | 746 |
|
17/64 | 0% | 3.45 | EMA | White Dragon Tournament | Moscow | |
| 8 | 106 |
|
43/48 | 0% | 3.10 | RR | Moscow Riichi Open 2018 | Moscow | |
| 9 | 522 |
|
12/24 | 0% | 2.73 | RR | Winner tournament. Agari season event | Moscow | |
| 10 | 70 |
|
67/72 | 0% | 3.55 | EMA | RCR Saint Petersburg South Cup 2018 | Saint Petersburg | |
| 11 | 519 |
|
14/28 | 0% | 3.50 | CRR | A-League | Moscow | |
| 12 | 526 |
|
10/20 | 0% | 1.50 | CRR | Agari tournament. First stage | Moscow | |
| 13 | 452 |
|
18/32 | 0% | 2.70 | RR | East Cup 2018 | Saint Petersburg | |
| 14 | 313 |
|
58/84 | 0% | 3.40 | EMA | VI Russian Riichi Championship 2017 | Saint Petersburg | |
| 15 | 175 |
|
53/64 | 0% | 3.45 | EMA | Moscow Riichi Open 2017 | Moscow | |
| 16 | 538 |
|
19/40 | 0% | 1.80 | RR | Saint Petersburg championship. Northern cup 2017 | Saint Petersburg | |
| 17 | 185 |
|
23/28 | 0% | 2.60 | RR | Moscow Riichi Half Marathon 2017 | Moscow | |
| 18 | 429 |
|
21/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2017 | Moscow | |
| 19 | 43 |
|
23/24 | 0% | 1.60 | RR | December tournament glhf; 2016 | Moscow |