Kosolapov Nikita
From Kirov, Russia
EMA: 15990426
Internal rating (RR)
Rating date Aug. 8, 2025 (latest changes Aug. 4, 2025).
119 place (352.51).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (607.48 * 4.60 * 0.71 + 37.97 * 3.65 * 0.86 + 641.79 * 4.10 * 1 + 162.79 * 3 * 1 + 0) / (4.60 * 0.71 + 3.65 * 0.86 + 4.10 * 1 + 3 * 1 + 1) = 360.6496950054757
p2 = (641.79 * 4.10 * 1 + 607.48 * 4.60 * 0.71 + 162.79 * 3 * 1 + 37.97 * 3.65 * 0.86) / max_coefficients = 344.3776315789474
score = 360.6496950054757 * 0.5 + 344.3776315789474 * 0.5 = 352.5136632922115
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2025-08-04 | 120 -> 119 | 345.88 -> 352.51 |
Riichi over Volga: 100% -> 86% |
2025-08-03 | 122 -> 120 | 338.05 -> 345.88 |
Two roosters and Chuckles: 0% -> 100% |
2025-07-13 | 119 -> 122 | 338.05 | |
2025-07-12 | 114 -> 119 | 353.70 -> 338.05 |
X Russian Championship: 86% -> 71% |
2025-07-03 | 117 -> 114 | 353.70 | |
2025-06-15 | 156 -> 117 | 202.98 -> 353.70 |
13 bloody tiles: 0% -> 100% |
2025-06-11 | 157 -> 156 | 229.75 -> 202.98 |
Money can not buy tenpai: 14% -> 0% |
2025-05-30 | 158 -> 157 | 229.75 | |
2025-05-12 | 152 -> 158 | 248.64 -> 229.75 |
X Russian Championship: 100% -> 86% |
2025-05-03 | 151 -> 152 | 248.64 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
---|---|---|---|---|---|---|---|---|---|
1 | 163 |
|
37/44 | 100% | 3.00 | RR | Two roosters and Chuckles | Kirov | |
2 | 642 |
|
25/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm | |
3 | 38 |
|
77/80 | 86% | 3.65 | RR | Riichi over Volga | Samara | |
4 | 607 |
|
43/108 | 71% | 4.60 | RR | X Russian Championship | Perm | |
5 | 483 |
|
46/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
6 | 836 |
|
10/56 | 0% | 3.30 | RR | Kirov Tournament | Kirov | |
7 | 821 |
|
8/40 | 0% | 2.90 | EMA | Big open chiitoitsu in a small tenpai | Kirov | |
8 | 153 |
|
95/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship | Moscow | |
9 | 825 |
|
12/64 | 0% | 3.85 | EMA | Aki Shanten 2019 | Perm | |
10 | 148 |
|
24/28 | 0% | 2.60 | RR | And yet the sinner collects tanyao | Kirov | |
11 | 200 |
|
29/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2019 | Moscow | |
12 | 410 |
|
50/84 | 0% | 4.20 | EMA | Haru Shanten 2019 | Perm | |
13 | 783 |
|
6/24 | 0% | 2.50 | RR | Toi-Toi-man Tournament | Kirov | |
14 | 737 |
|
6/20 | 0% | 2.10 | RR | Fuyu Shanten 2019 | Perm |