Ivshin Sergei

From Kirov, Russia

EMA: 15990412

Player page

Common russian riichi rating (CRR)

Rating date April 20, 2026 (latest changes April 19, 2026).

221 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
2026-04-19 209 -> 221 253.53
2026-04-16 210 -> 209 253.53
2026-04-13 212 -> 210 253.53
2026-04-11 204 -> 212 253.53
2026-04-09 205 -> 204 253.53
2026-04-05 202 -> 205 253.53
2026-04-04 203 -> 202 253.53
2026-03-26 204 -> 203 253.53
2026-03-23 206 -> 204 253.53
2026-03-21 203 -> 206 253.53

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