Ivshin Sergei

From Kirov, Russia

EMA: 15990412

Player page

Internal rating (RR)

Rating date April 25, 2021 (latest changes April 25, 2021).

62 place (323.57).

max_coefficients = (2.90 * 0.86 + 4.05 * 0.57 + 3.85 * 0.57 + 3.45 * 0.57) = 8.970979999999999

p1 = (710.84 * 4.20 * 0.14 + 259.26 * 2.60 * 0.43 + 666.67 * 2.90 * 0.86 + 0 + 0) / (4.20 * 0.14 + 2.60 * 0.43 + 2.90 * 0.86 + 1 + 1) = 382.6693956417043

p2 = (666.67 * 2.90 * 0.86 + 710.84 * 4.20 * 0.14 + 259.26 * 2.60 * 0.43) / max_coefficients = 264.47500718985

score = 382.6693956417043 * 0.5 + 264.47500718985 * 0.5 = 323.57220141577716

Rating changes

Show

Date Place Points Reason
2021-04-25 64 -> 62 323.57
2021-04-15 66 -> 64 315.56 -> 323.57
2021-04-03 67 -> 66 315.56
2021-04-02 68 -> 67 315.56
2021-03-26 68 311.25 -> 315.56
2021-03-24 70 -> 68 308.13 -> 311.25
2021-03-17 71 -> 70 308.13
2021-03-08 54 -> 71 365.82 -> 308.13

Big open chiitoitsu in a small tenpai: 100% -> 86%

And yet the sinner collects tanyao: 57% -> 43%

2021-03-05 55 -> 54 365.82
2021-03-04 52 -> 55 390.70 -> 365.82

Haru Shanten 2019: 29% -> 14%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 667 2020-03-08 14/40 86% 2.90 EMA Big open chiitoitsu in a small tenpai
2 259 2019-09-08 21/28 43% 2.60 RR And yet the sinner collects tanyao
3 711 2019-05-04 25/84 14% 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