Ivshin Sergei
From Kirov, Russia
EMA: 15990412
Common russian riichi rating (CRR)
Rating date June 12, 2023 (latest changes June 12, 2023).
130 place (205.27).
how we calculated rating score
max_coefficients = (4.20 * 1 + 3.75 * 1 + 4.05 * 0.86 + 2.80 * 1) = 14.221255
p1 = (600 * 3.30 * 0.43 + 343.28 * 3.50 * 0.71 + 200 * 1.20 * 1 + 0 + 0) / (3.30 * 0.43 + 3.50 * 0.71 + 1.20 * 1 + 1 + 1) = 273.6494701613481
p2 = (343.28 * 3.50 * 0.71 + 600 * 3.30 * 0.43 + 200 * 1.20 * 1) / max_coefficients = 136.89790387697852
score = 273.6494701613481 * 0.5 + 136.89790387697852 * 0.5 = 205.27368701916333
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
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 | |
2023-04-22 | 106 -> 110 | 233.94 | |
2023-03-20 | 106 | 238.25 -> 233.94 |
Tenpai can't buy happiness: 100% -> 86% |
2023-03-06 | 102 -> 106 | 255.79 -> 238.25 |
Kirov Tournament: 71% -> 57% |
2023-03-05 | 103 -> 102 | 255.79 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 200 |
|
13/16 | 100% | 1.20 | CRR | Vyatka rooster |
2 | 343 |
|
45/68 | 71% | 3.50 | RR | Tenpai can't buy happiness |
3 | 600 |
|
23/56 | 43% | 3.30 | RR | Kirov Tournament |
4 | 667 |
|
14/40 | 0% | 2.90 | EMA | Big open chiitoitsu in a small tenpai |
5 | 259 |
|
21/28 | 0% | 2.60 | RR | And yet the sinner collects tanyao |
6 | 711 |
|
25/84 | 0% | 4.20 | EMA | Haru Shanten 2019 |
7 | 435 |
|
14/24 | 0% | 2.50 | RR | Toi-Toi-man Tournament |
8 | 1000 |
|
1/24 | 0% | 1.40 | RR | Seven ryanmens |