Ivshin Sergei

From Kirov, Russia

EMA: 15990412

Player page

Common russian riichi rating (CRR)

Rating date March 15, 2026 (latest changes March 15, 2026).

197 place (253.53).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (578.95 * 1.50 * 0.71 + 604.65 * 3 * 1 + 0 + 0 + 0) / (1.50 * 0.71 + 3 * 1 + 1 + 1 + 1) = 344.23774473410685

p2 = (604.65 * 3 * 1 + 578.95 * 1.50 * 0.71) / max_coefficients = 162.82675585284284

score = 344.23774473410685 * 0.5 + 162.82675585284284 * 0.5 = 253.53225029347485

Rating changes

Show

all results
Date Place Points Reason
2026-03-07 195 -> 197 253.53
2026-03-05 196 -> 195 253.53
2026-03-04 192 -> 196 261.13 -> 253.53

Dirty Riichi: 86% -> 71%
2026-03-01 193 -> 192 261.13
2026-02-23 186 -> 193 261.13
2026-02-16 187 -> 186 261.13
2026-02-13 189 -> 187 261.13
2026-02-08 188 -> 189 261.13
2026-02-04 189 -> 188 261.13
2026-01-26 190 -> 189 261.13

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 605 2025-08-03 18/44 100% 3.00 RR Two roosters and Chuckles Kirov
2 579 2025-01-04 9/20 71% 1.50 CRR Dirty Riichi Kirov
3 200 2022-07-03 13/16 0% 1.20 CRR Vyatka rooster Kirov
4 333 2022-03-20 45/67 0% 3.45 RR Tenpai can't buy happiness Perm
5 600 2021-11-06 23/56 0% 3.30 RR Kirov Tournament Kirov
6 667 2020-03-08 14/40 0% 2.90 EMA Big open chiitoitsu in a small tenpai Kirov
7 259 2019-09-08 21/28 0% 2.60 RR And yet the sinner collects tanyao Kirov
8 711 2019-05-04 25/84 0% 4.20 EMA Haru Shanten 2019 Perm
9 435 2019-03-09 14/24 0% 2.50 RR Toi-Toi-man Tournament Kirov
10 1000 2018-07-28 🥇 1/24 0% 1.40 RR Seven ryanmens Kirov