Ivshin Sergei

From Kirov, Russia

EMA: 15990412

Player page

Common russian riichi rating (CRR)

Rating date Jan. 5, 2024 (latest changes Jan. 5, 2024).

175 place (65.07).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.90 * 1) = 14.249820000000001

p1 = (200 * 1.20 * 0.43 + 343.28 * 3.50 * 0.29 + 0 + 0 + 0) / (1.20 * 0.43 + 3.50 * 0.29 + 1 + 1 + 1) = 98.82660983946464

p2 = (343.28 * 3.50 * 0.29 + 200 * 1.20 * 0.43) / max_coefficients = 31.30776388754384

score = 98.82660983946464 * 0.5 + 31.30776388754384 * 0.5 = 65.06718686350423

Rating changes

Show

all results
Date Place Points Reason
2024-01-03 174 -> 175 68.12 -> 65.07

Vyatka rooster: 57% -> 43%
2023-12-19 185 -> 174 68.12
2023-12-18 186 -> 185 68.12
2023-11-28 195 -> 186 68.12
2023-11-26 187 -> 195 68.24 -> 68.12
2023-11-20 186 -> 187 85.92 -> 68.24

Tenpai can't buy happiness: 43% -> 29%
2023-11-06 174 -> 186 132.08 -> 85.92

Kirov Tournament: 14% -> 0%
2023-11-05 168 -> 174 132.08
2023-11-03 168 133.23 -> 132.08

Vyatka rooster: 71% -> 57%
2023-10-22 166 -> 168 133.23

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 200 2022-07-03 13/16 43% 1.20 CRR Vyatka rooster
2 343 2022-03-20 45/68 29% 3.50 RR Tenpai can't buy happiness
3 600 2021-11-06 23/56 0% 3.30 RR Kirov Tournament
4 667 2020-03-08 14/40 0% 2.90 EMA Big open chiitoitsu in a small tenpai
5 259 2019-09-08 21/28 0% 2.60 RR And yet the sinner collects tanyao
6 711 2019-05-04 25/84 0% 4.20 EMA Haru Shanten 2019
7 435 2019-03-09 14/24 0% 2.50 RR Toi-Toi-man Tournament
8 1000 2018-07-28 1/24 0% 1.40 RR Seven ryanmens