Kazantseva Polina
From Novosibirsk, Russia
EMA: 15020026
Common russian riichi rating (CRR)
Rating date Aug. 13, 2026 (latest changes Aug. 13, 2026).
189 place (304.41).
how we calculated rating score
max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997
p1 = (612.90 * 2.40 * 0.57 + 245.61 * 3.90 * 1 + 742.86 * 2.50 * 1 + 0 + 0) / (2.40 * 0.57 + 3.90 * 1 + 2.50 * 1 + 1 + 1) = 374.10759607669763
p2 = (742.86 * 2.50 * 1 + 245.61 * 3.90 * 1 + 612.90 * 2.40 * 0.57) / max_coefficients = 234.71903049355632
score = 374.10759607669763 * 0.5 + 234.71903049355632 * 0.5 = 304.41331328512695
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2026-08-13 | 183 -> 189 | 315.21 -> 304.41 |
Akademgorodok Riichi Mahjong Tournament 2025: 71% -> 57% |
| 2026-08-04 | 185 -> 183 | 315.21 | |
| 2026-08-02 | 184 -> 185 | 315.21 | |
| 2026-07-25 | 183 -> 184 | 315.21 | |
| 2026-07-14 | 184 -> 183 | 315.21 | |
| 2026-07-13 | 185 -> 184 | 315.21 | |
| 2026-07-12 | 182 -> 185 | 315.21 | |
| 2026-07-11 | 181 -> 182 | 315.21 | |
| 2026-07-01 | 186 -> 181 | 315.21 | |
| 2026-06-27 | 184 -> 186 | 315.21 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 743 |
|
10/36 | 100% | 2.50 | CRR | Akademgorodok Riichi Mahjong Tournament 2026 | Novosibirsk | |
| 2 | 246 |
|
44/58 | 100% | 3.90 | RR | XI Russian Championship | Moscow | |
| 3 | 613 |
|
13/32 | 57% | 2.40 | CRR | Akademgorodok Riichi Mahjong Tournament 2025 | Novosibirsk | |
| 4 | 453 |
|
42/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 5 | 712 |
|
33/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 6 | 636 |
|
25/67 | 0% | 3.45 | RR | Tenpai can't buy happiness | Perm | |
| 7 | 474 |
|
11/20 | 0% | 2.10 | EMA | Snow Dragon Tournament | Novosibirsk | |
| 8 | 519 |
|
14/28 | 0% | 2.30 | RR | The Green dragon tournament | Novosibirsk | |
| 9 | 491 |
|
29/56 | 0% | 3.00 | EMA | Snow Dragon | Novosibirsk | |
| 10 | 130 |
|
21/24 | 0% | 2.20 | RR | Siberian riichi | Novosibirsk | |
| 11 | 355 |
|
21/32 | 0% | 2.20 | RR | Russian riichi championship by JPML-B rules | Novosibirsk | |
| 12 | 87 |
|
22/24 | 0% | 2.20 | EMA | Siberia Cup 2017 | Novosibirsk | |
| 13 | 29 |
|
35/36 | 0% | 2.50 | RR | Quick discard 2017 | Novosibirsk | |
| 14 | 302 |
|
31/44 | 0% | 1.90 | RR | Eighth winter tournament | Novosibirsk | |
| 15 | 957 |
|
🥈 | 2/24 | 0% | 1.40 | RR | Furiten tournament 2014 | Novosibirsk |
| 16 | 194 |
|
26/32 | 0% | 2.00 | RR | Riichi tournament 2013 | Novosibirsk |