Kazantseva Polina
From Novosibirsk, Russia
EMA: 15020026
Common russian riichi rating (CRR)
Rating date Nov. 5, 2025 (latest changes Nov. 5, 2025).
233 place (181.90).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (500 * 2.20 * 1 + 245.61 * 3.90 * 1 + 0 + 0 + 0) / (2.20 * 1 + 3.90 * 1 + 1 + 1 + 1) = 226.14175824175823
p2 = (500 * 2.20 * 1 + 245.61 * 3.90 * 1) / max_coefficients = 137.6515050167224
score = 226.14175824175823 * 0.5 + 137.6515050167224 * 0.5 = 181.89663162924032
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-11-04 | 173 -> 233 | 154.01 -> 181.90 |
XI Russian Championship: 0% -> 100% |
| 2024-06-09 | 165 -> 173 | 154.01 | |
| 2024-05-25 | 160 -> 165 | 154.01 | |
| 2024-05-19 | 159 -> 160 | 154.01 | |
| 2024-05-12 | 145 -> 159 | 158.96 -> 154.01 | |
| 2024-05-06 | 140 -> 145 | 180.17 -> 158.96 |
IX Russian Riichi Championship: 57% -> 43% |
| 2024-05-05 | 138 -> 140 | 180.17 | |
| 2024-05-03 | 139 -> 138 | 180.17 | |
| 2024-04-27 | 140 -> 139 | 180.17 | |
| 2024-04-25 | 141 -> 140 | 180.17 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 246 |
|
44/58 | 100% | 3.90 | RR | XI Russian Championship | Moscow | |
| 2 | 500 |
|
13/25 | 100% | 2.20 | CRR | Akademgorodok Riichi Mahjong Tournament 2025 | Novosibirsk | |
| 3 | 453 |
|
42/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 4 | 712 |
|
33/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 5 | 642 |
|
25/68 | 0% | 3.50 | RR | Tenpai can't buy happiness | Perm | |
| 6 | 474 |
|
11/20 | 0% | 2.10 | EMA | Snow Dragon Tournament | Novosibirsk | |
| 7 | 519 |
|
14/28 | 0% | 2.30 | RR | The Green dragon tournament | Novosibirsk | |
| 8 | 491 |
|
29/56 | 0% | 3.00 | EMA | Snow Dragon | Novosibirsk | |
| 9 | 130 |
|
21/24 | 0% | 2.20 | RR | Siberian riichi | Novosibirsk | |
| 10 | 355 |
|
21/32 | 0% | 2.20 | RR | Russian riichi championship by JPML-B rules | Novosibirsk | |
| 11 | 87 |
|
22/24 | 0% | 2.20 | EMA | Siberia Cup 2017 | Novosibirsk | |
| 12 | 29 |
|
35/36 | 0% | 2.50 | RR | Quick discard 2017 | Novosibirsk | |
| 13 | 302 |
|
31/44 | 0% | 1.90 | RR | Eighth winter tournament | Novosibirsk | |
| 14 | 957 |
|
🥈 | 2/24 | 0% | 1.40 | RR | Furiten tournament 2014 | Novosibirsk |
| 15 | 194 |
|
26/32 | 0% | 2.00 | RR | Riichi tournament 2013 | Novosibirsk |