Ivshin Sergei

From Kirov, Russia

EMA: 15990412

Player page

Common russian riichi rating (CRR)

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

247 place (234.73).

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

p1 = (578.95 * 1.50 * 0.43 + 604.65 * 3 * 1 + 0 + 0 + 0) / (1.50 * 0.43 + 3 * 1 + 1 + 1 + 1) = 329.09723163076364

p2 = (604.65 * 3 * 1 + 578.95 * 1.50 * 0.43) / max_coefficients = 140.37142411348066

score = 329.09723163076364 * 0.5 + 140.37142411348066 * 0.5 = 234.73432787212215

Rating changes

Show

all results
Date Place Points Reason
2026-07-18 244 -> 247 234.73
2026-07-17 245 -> 244 234.73
2026-07-12 243 -> 245 234.73
2026-07-11 241 -> 243 234.73
2026-07-04 234 -> 241 242.62 -> 234.73

Dirty Riichi: 57% -> 43%
2026-07-02 235 -> 234 242.62
2026-06-16 240 -> 235 242.62
2026-06-15 239 -> 240 239.93 -> 242.62
2026-06-14 223 -> 239 246.23 -> 239.93
2026-06-13 226 -> 223 246.23

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 43% 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