Grishhenko Sergei

From Korolyov, Russia

Player page

Common russian riichi rating (CRR)

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

100 place (469.38).

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

p1 = (473.68 * 1.50 * 0.71 + 66.67 * 2 * 0.86 + 268.66 * 4.10 * 0.86 + 333.33 * 2.45 * 0.86 + 894.74 * 2.25 * 1 + 256.76 * 3.40 * 1 + 901.96 * 2.30 * 1 + 259.26 * 2.45 * 1 + 559.44 * 4.71 * 1) / (1.50 * 0.71 + 2 * 0.86 + 4.10 * 0.86 + 2.45 * 0.86 + 2.25 * 1 + 3.40 * 1 + 2.30 * 1 + 2.45 * 1 + 4.71 * 1) = 446.4833703429506

p2 = (559.44 * 4.71 * 1 + 901.96 * 2.30 * 1 + 894.74 * 2.25 * 1 + 268.66 * 4.10 * 0.86) / max_coefficients = 492.27403684704944

score = 446.4833703429506 * 0.5 + 492.27403684704944 * 0.5 = 469.37870359500005

Rating changes

Show

all results
Date Place Points Reason
2026-07-18 101 -> 100 469.38
2026-07-17 101 469.50 -> 469.38

HaTiKo: 86% -> 71%
2026-07-14 102 -> 101 469.50
2026-07-13 102 468.68 -> 469.50

Agari Summer Tournament 2025: 100% -> 86%
2026-07-12 101 -> 102 468.68
2026-07-11 99 -> 101 468.68
2026-07-02 98 -> 99 468.68
2026-07-01 99 -> 98 468.68
2026-06-15 101 -> 99 462.53 -> 468.68

13 bloody tiles: 100% -> 86%
2026-06-14 123 -> 101 389.71 -> 462.53

XII Russian Championship: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 559 2026-06-14 64/144 100% 4.71 RR XII Russian Championship Samara
2 259 2026-05-17 21/28 100% 2.45 RR Hatiko under the sakura Korolyov
3 902 2026-03-14 6/52 100% 2.30 CRR "Furin" club tournament: for the anniversary Moscow
4 257 2026-02-23 56/75 100% 3.40 RR White Wolf Cup 2026 Saint Petersburg
5 895 2025-12-07 🥉 3/20 100% 2.25 RR Winter Hatiko Korolyov
6 158 2025-11-04 49/58 100% 3.90 RR XI Russian Championship Moscow
7 333 2025-07-13 21/31 86% 2.45 RR Agari Summer Tournament 2025 Moscow
8 269 2025-06-15 50/68 86% 4.10 RR 13 bloody tiles Perm
9 67 2025-06-08 15/16 86% 2.00 RR Random not fault Moscow
10 474 2025-05-17 11/20 71% 1.50 CRR HaTiKo Korolyov