Perov Nikita
Russian Champion 2016
From Moscow, Russia
EMA: 15990030
Common russian riichi rating (CRR)
Rating date Nov. 5, 2025 (latest changes Nov. 5, 2025).
136 place (348.95).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (384.62 * 2.90 * 0.14 + 213.48 * 3.75 * 0.86 + 824.56 * 3.90 * 1 + 0 + 0) / (2.90 * 0.14 + 3.75 * 0.86 + 3.90 * 1 + 1 + 1) = 426.2292157188907
p2 = (824.56 * 3.90 * 1 + 213.48 * 3.75 * 0.86 + 384.62 * 2.90 * 0.14) / max_coefficients = 271.66153846153844
score = 426.2292157188907 * 0.5 + 271.66153846153844 * 0.5 = 348.9453770902146
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-11-04 | 261 -> 136 | 93.35 -> 348.95 |
XI Russian Championship: 0% -> 100% |
| 2025-11-01 | 261 | 93.24 -> 93.35 | |
| 2025-10-25 | 262 -> 261 | 93.24 | |
| 2025-10-22 | 263 -> 262 | 93.24 | |
| 2025-10-13 | 261 -> 263 | 99.43 -> 93.24 |
Moscow Riichi 2024: 100% -> 86% |
| 2025-10-04 | 262 -> 261 | 99.43 | |
| 2025-09-26 | 259 -> 262 | 111.65 -> 99.43 |
Autumn Agari tournament: 29% -> 14% |
| 2025-09-12 | 261 -> 259 | 111.65 | |
| 2025-09-03 | 271 -> 261 | 111.65 | |
| 2025-09-01 | 271 | 110.66 -> 111.65 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 825 |
|
11/58 | 100% | 3.90 | RR | XI Russian Championship | Moscow | |
| 2 | 213 |
|
71/90 | 86% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
| 3 | 385 |
|
25/40 | 14% | 2.90 | CRR | Autumn Agari tournament | Moscow | |
| 4 | 306 |
|
78/112 | 0% | 4.05 | RR | Moscow Riichi 2022 | Moscow | |
| 5 | 213 |
|
38/48 | 0% | 3.10 | RR | Moscow Riichi Open 2018 | Moscow | |
| 6 | 852 |
|
5/28 | 0% | 3.50 | CRR | A-League | Moscow | |
| 7 | 963 |
|
🥈 | 2/28 | 0% | 1.70 | CRR | Team tournament Agari. Season event | Moscow |
| 8 | 429 |
|
37/64 | 0% | 3.45 | EMA | Moscow Riichi Open 2017 | Moscow | |
| 9 | 718 |
|
12/40 | 0% | 2.00 | RR | Moscow championship 2017 (JPML-A rules) | Moscow | |
| 10 | 1000 |
|
🥇 | 1/88 | 0% | 3.45 | EMA | V Russian Riichi Championship 2016 | Moscow |
| 11 | 1000 |
|
🥇 | 1/16 | 0% | 1.20 | RR | Riichi mahjong league tournament 2016 (JPML-A rules) | Moscow |
| 12 | 818 |
|
19/100 | 0% | 3.40 | RR | "Japanese House" riichi mahjong cup 2016 | Moscow | |
| 13 | 190 |
|
52/64 | 0% | 3.15 | EMA | Russian Open Riichi Championship 2014 | Moscow | |
| 14 | 825 |
|
12/64 | 0% | 3.15 | RR | "Japanese House" riichi mahjong cup 2014 | Moscow | |
| 15 | 773 |
|
18/76 | 0% | 2.50 | RR | Moscow Riichi 2014 | Moscow | |
| 16 | 845 |
|
12/72 | 0% | 3.25 | EMA | Russian Riichi Championship 2013 | Moscow | |
| 17 | 836 |
|
10/56 | 0% | 3.00 | RR | "Japanese House" riichi mahjong cup 2013 | Moscow | |
| 18 | 600 |
|
15/36 | 0% | 0.90 | EMA | Moscow Riichi 2011 | Moscow |