Ivshin Sergei

From Kirov, Russia

EMA: 15990412

Player page

Internal rating (RR)

Rating date Oct. 12, 2023 (latest changes Oct. 12, 2023).

128 place (108.21).

max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.57) = 14.26417

p1 = (600 * 3.30 * 0.14 + 343.28 * 3.50 * 0.43 + 0 + 0 + 0) / (3.30 * 0.14 + 3.50 * 0.43 + 1 + 1 + 1) = 160.4893325582752

p2 = (343.28 * 3.50 * 0.43 + 600 * 3.30 * 0.14) / max_coefficients = 55.93735913130593

score = 160.4893325582752 * 0.5 + 55.93735913130593 * 0.5 = 108.21334584479057

Rating changes

Show

all results
Date Place Points Reason
2023-10-12 128 107.12 -> 108.21
2023-09-20 129 -> 128 121.25 -> 107.12

Tenpai can't buy happiness: 57% -> 43%
2023-09-06 126 -> 129 147.54 -> 121.25

Kirov Tournament: 29% -> 14%
2023-09-03 105 -> 126 154.11 -> 147.54
2023-08-12 105 152.01 -> 154.11
2023-07-20 104 -> 105 161.65 -> 152.01

Tenpai can't buy happiness: 71% -> 57%
2023-07-06 101 -> 104 184.73 -> 161.65

Kirov Tournament: 43% -> 29%
2023-06-12 102 -> 101 182.28 -> 184.73
2023-06-11 85 -> 102 191.59 -> 182.28
2023-05-28 85 190.51 -> 191.59

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 343 2022-03-20 45/68 43% 3.50 RR Tenpai can't buy happiness
2 600 2021-11-06 23/56 14% 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