Ivshin Sergei

From Kirov, Russia

EMA: 15990412

Player page

Common russian riichi rating (CRR)

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

131 place (183.20).

max_coefficients = (4.20 * 1 + 3.75 * 1 + 4.05 * 0.86 + 2.80 * 1) = 14.221255

p1 = (600 * 3.30 * 0.29 + 343.28 * 3.50 * 0.71 + 200 * 1.20 * 0.86 + 0 + 0) / (3.30 * 0.29 + 3.50 * 0.71 + 1.20 * 0.86 + 1 + 1) = 251.81955008050835

p2 = (343.28 * 3.50 * 0.71 + 600 * 3.30 * 0.29 + 200 * 1.20 * 0.86) / max_coefficients = 114.59044929579001

score = 251.81955008050835 * 0.5 + 114.59044929579001 * 0.5 = 183.20499968814917

Rating changes

Show

all results
Date Place Points Reason
2023-07-06 127 -> 131 204.98 -> 183.20

Kirov Tournament: 43% -> 29%
2023-07-05 128 -> 127 204.98
2023-07-03 129 -> 128 205.27 -> 204.98

Vyatka rooster: 100% -> 86%
2023-06-19 130 -> 129 205.27
2023-06-12 130 202.60 -> 205.27
2023-06-11 117 -> 130 208.66 -> 202.60
2023-05-20 115 -> 117 214.50 -> 208.66

Tenpai can't buy happiness: 86% -> 71%
2023-05-06 111 -> 115 233.94 -> 214.50

Kirov Tournament: 57% -> 43%
2023-05-05 112 -> 111 233.94
2023-05-01 110 -> 112 233.94

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 200 2022-07-03 13/16 86% 1.20 CRR Vyatka rooster
2 343 2022-03-20 45/68 71% 3.50 RR Tenpai can't buy happiness
3 600 2021-11-06 23/56 29% 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