Kosolapov Nikita

From Kirov, Russia

EMA: 15990426

Player page

Common russian riichi rating (CRR)

Rating date July 21, 2026 (latest changes July 18, 2026).

221 place (275.26).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997

p1 = (37.97 * 3.65 * 0.14 + 473.68 * 1.50 * 0.43 + 641.79 * 4.10 * 0.86 + 162.79 * 3 * 1 + 0) / (3.65 * 0.14 + 1.50 * 0.43 + 4.10 * 0.86 + 3 * 1 + 1) = 353.51689991294677

p2 = (641.79 * 4.10 * 0.86 + 162.79 * 3 * 1 + 473.68 * 1.50 * 0.43 + 37.97 * 3.65 * 0.14) / max_coefficients = 196.99552655015282

score = 353.51689991294677 * 0.5 + 196.99552655015282 * 0.5 = 275.2562132315498

Rating changes

Show

all results
Date Place Points Reason
2026-07-18 220 -> 221 275.26
2026-07-15 221 -> 220 275.26
2026-07-12 218 -> 221 275.26
2026-07-11 217 -> 218 275.26
2026-07-04 212 -> 217 279.96 -> 275.26

Dirty Riichi: 57% -> 43%
2026-07-02 213 -> 212 279.96
2026-06-15 196 -> 213 296.73 -> 279.96

13 bloody tiles: 100% -> 86%
2026-06-14 176 -> 196 306.40 -> 296.73
2026-06-13 178 -> 176 306.40
2026-06-04 188 -> 178 298.31 -> 306.40

Riichi over Volga: 29% -> 14%

Tournaments

# Base rank Date Place Power Coefficient Rating 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 86% 4.10 RR 13 bloody tiles Perm
3 474 2025-01-04 11/20 43% 1.50 CRR Dirty Riichi Kirov
4 38 2024-08-04 77/80 14% 3.65 RR Riichi over Volga Samara
5 607 2024-05-12 43/108 0% 4.60 RR X Russian Championship Perm
6 483 2023-06-11 46/88 0% 3.75 RR Money can not buy tenpai Perm
7 467 2022-08-20 9/16 0% 1.20 CRR I still can declare riichi Kirov
8 836 2021-11-06 10/56 0% 3.30 RR Kirov Tournament Kirov
9 821 2020-03-08 8/40 0% 2.90 EMA Big open chiitoitsu in a small tenpai Kirov
10 153 2019-12-15 95/112 0% 4.05 EMA VIII Russian Riichi Championship Moscow
11 825 2019-11-04 12/64 0% 3.85 EMA Aki Shanten 2019 Perm
12 148 2019-09-08 24/28 0% 2.60 RR And yet the sinner collects tanyao Kirov
13 200 2019-07-21 29/36 0% 3.20 RR Moscow Open Riichi Marathon 2019 Moscow
14 410 2019-05-04 50/84 0% 4.20 EMA Haru Shanten 2019 Perm
15 783 2019-03-09 6/24 0% 2.50 RR Toi-Toi-man Tournament Kirov
16 737 2019-02-10 6/20 0% 2.10 RR Fuyu Shanten 2019 Perm