Ivshin Sergei

From Kirov, Russia

EMA: 15990412

Player page

Common russian riichi rating (CRR)

Rating date March 6, 2023 (latest changes March 6, 2023).

106 place (238.25).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 2.80 * 1) = 14.55

p1 = (600 * 3.30 * 0.57 + 343.28 * 3.50 * 1 + 200 * 1.20 * 1 + 0 + 0) / (3.30 * 0.57 + 3.50 * 1 + 1.20 * 1 + 1 + 1) = 299.67084497100967

p2 = (343.28 * 3.50 * 1 + 600 * 3.30 * 0.57 + 200 * 1.20 * 1) / max_coefficients = 176.82886597938142

score = 299.67084497100967 * 0.5 + 176.82886597938142 * 0.5 = 238.24985547519555

Rating changes

Show

all results
Date Place Points Reason
2023-03-06 102 -> 106 255.79 -> 238.25

Kirov Tournament: 71% -> 57%
2023-03-05 103 -> 102 255.79
2023-02-25 95 -> 103 255.79
2023-01-28 95 254.74 -> 255.79
2023-01-14 94 -> 95 254.74
2023-01-06 90 -> 94 271.40 -> 254.74

Kirov Tournament: 86% -> 71%
2023-01-03 91 -> 90 271.40
2022-12-19 91 270.37 -> 271.40
2022-12-18 89 -> 91 270.37
2022-12-03 62 -> 89 383.16 -> 270.37

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 200 2022-07-03 13/16 100% 1.20 CRR Vyatka rooster
2 343 2022-03-20 45/68 100% 3.50 RR Tenpai can't buy happiness
3 600 2021-11-06 23/56 57% 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