Ivshin Sergei

From Kirov, Russia

EMA: 15990412

Player page

Internal rating (RR)

Rating date June 18, 2021 (latest changes June 16, 2021).

67 place (247.71).

max_coefficients = (2.90 * 0.71 + 4.05 * 0.43 + 3.85 * 0.43 + 2.70 * 0.57) = 7.00019

p1 = (259.26 * 2.60 * 0.29 + 666.67 * 2.90 * 0.71 + 0 + 0 + 0) / (2.60 * 0.29 + 2.90 * 0.71 + 1 + 1 + 1) = 270.63665555037676

p2 = (666.67 * 2.90 * 0.71 + 259.26 * 2.60 * 0.29) / max_coefficients = 224.78818432071128

score = 270.63665555037676 * 0.5 + 224.78818432071128 * 0.5 = 247.712419935544

Rating changes

Show

Date Place Points Reason
2021-06-15 74 -> 67 239.14 -> 247.71
2021-06-02 75 -> 74 239.14
2021-05-26 76 -> 75 234.11 -> 239.14
2021-05-24 77 -> 76 230.28 -> 234.11
2021-05-08 72 -> 77 259.26 -> 230.28

And yet the sinner collects tanyao: 43% -> 29%

Big open chiitoitsu in a small tenpai: 86% -> 71%

2021-05-05 73 -> 72 259.26
2021-05-04 62 -> 73 323.57 -> 259.26

Haru Shanten 2019: 14% -> 0%

2021-04-25 64 -> 62 323.57
2021-04-15 66 -> 64 315.56 -> 323.57
2021-04-03 67 -> 66 315.56

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 667 2020-03-08 14/40 71% 2.90 EMA Big open chiitoitsu in a small tenpai
2 259 2019-09-08 21/28 29% 2.60 RR And yet the sinner collects tanyao
3 711 2019-05-04 25/84 0% 4.20 EMA Haru Shanten 2019
4 435 2019-03-09 14/24 0% 2.50 RR Toi-Toi-man Tournament
5 1000 2018-07-28 1/24 0% 1.40 RR Seven ryanmens