Kosolapov Nikita

From Kirov, Russia

EMA: 15990426

Player page

Internal rating (RR)

Rating date Aug. 29, 2025 (latest changes Aug. 9, 2025).

118 place (352.51).

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

Show

all results
Date Place Points Reason
2025-08-09 119 -> 118 352.51
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%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 163 2025-08-03 37/44 100% 3.00 RR Two roosters and Chuckles Kirov
2 642 2025-06-15 25/68 100% 4.10 RR 13 bloody tiles Perm
3 38 2024-08-04 77/80 86% 3.65 RR Riichi over Volga Samara
4 607 2024-05-12 43/108 71% 4.60 RR X Russian Championship Perm
5 483 2023-06-11 46/88 0% 3.75 RR Money can not buy tenpai Perm
6 836 2021-11-06 10/56 0% 3.30 RR Kirov Tournament Kirov
7 821 2020-03-08 8/40 0% 2.90 EMA Big open chiitoitsu in a small tenpai Kirov
8 153 2019-12-15 95/112 0% 4.05 EMA VIII Russian Riichi Championship Moscow
9 825 2019-11-04 12/64 0% 3.85 EMA Aki Shanten 2019 Perm
10 148 2019-09-08 24/28 0% 2.60 RR And yet the sinner collects tanyao Kirov
11 200 2019-07-21 29/36 0% 3.20 RR Moscow Open Riichi Marathon 2019 Moscow
12 410 2019-05-04 50/84 0% 4.20 EMA Haru Shanten 2019 Perm
13 783 2019-03-09 6/24 0% 2.50 RR Toi-Toi-man Tournament Kirov
14 737 2019-02-10 6/20 0% 2.10 RR Fuyu Shanten 2019 Perm