Ivshin Sergei

From Kirov, Russia

EMA: 15990412

Player page

Internal rating (RR)

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

85 place (221.16).

max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 3.45 * 0.71) = 14.214335

p1 = (600 * 3.30 * 0.57 + 343.28 * 3.50 * 1 + 0 + 0 + 0) / (3.30 * 0.57 + 3.50 * 1 + 1 + 1 + 1) = 278.1976764985773

p2 = (343.28 * 3.50 * 1 + 600 * 3.30 * 0.57) / max_coefficients = 164.12023495998932

score = 278.1976764985773 * 0.5 + 164.12023495998932 * 0.5 = 221.15895572928332

Rating changes

Show

all results
Date Place Points Reason
2023-03-06 84 -> 85 239.68 -> 221.16

Kirov Tournament: 71% -> 57%
2023-02-19 84 238.45 -> 239.68
2023-01-28 84 236.60 -> 238.45
2023-01-06 82 -> 84 253.90 -> 236.60

Kirov Tournament: 86% -> 71%
2022-12-19 82 252.96 -> 253.90
2022-11-28 82 250.71 -> 252.96
2022-11-06 61 -> 82 273.56 -> 250.71

Kirov Tournament: 100% -> 86%
2022-10-14 56 -> 61 383.16 -> 273.56
2021-02-01 93 -> 56 417.17 -> 383.16
2020-02-01 93 417.17

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 343 2022-03-20 45/68 100% 3.50 RR Tenpai can't buy happiness
2 600 2021-11-06 23/56 57% 3.30 RR Kirov Tournament
3 667 2020-03-08 14/40 0% 2.90 EMA Big open chiitoitsu in a small tenpai
4 259 2019-09-08 21/28 0% 2.60 RR And yet the sinner collects tanyao
5 711 2019-05-04 25/84 0% 4.20 EMA Haru Shanten 2019
6 435 2019-03-09 14/24 0% 2.50 RR Toi-Toi-man Tournament
7 1000 2018-07-28 1/24 0% 1.40 RR Seven ryanmens