Ermolaev Andrei
From Sarov, Russia
EMA: 15990413
Common russian riichi rating (CRR)
Rating date Feb. 19, 2023 (latest changes Feb. 19, 2023).
41 place (440.59).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 1 + 2.80 * 1) = 14.55
p1 = (869.57 * 2.80 * 1 + 163.64 * 3.30 * 0.71 + 666.67 * 4.20 * 1 + 0 + 0) / (2.80 * 1 + 3.30 * 0.71 + 4.20 * 1 + 1 + 1) = 494.88473821429426
p2 = (666.67 * 4.20 * 1 + 869.57 * 2.80 * 1 + 163.64 * 3.30 * 0.71) / max_coefficients = 386.2886597938145
score = 494.88473821429426 * 0.5 + 386.2886597938145 * 0.5 = 440.58669900405437
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-01-28 | 43 -> 41 | 438.52 -> 440.59 | |
2023-01-06 | 43 | 434.55 -> 438.52 |
Kirov Tournament: 86% -> 71% |
2022-12-19 | 45 -> 43 | 432.68 -> 434.55 | |
2022-12-18 | 86 -> 45 | 272.54 -> 432.68 |
Meeting in the billiard room: 0% -> 100% |
2022-11-28 | 87 -> 86 | 270.01 -> 272.54 | |
2022-11-06 | 98 -> 87 | 255.85 -> 270.01 |
IX Russian Riichi Championship: 0% -> 100% Kirov Tournament: 100% -> 86% |
2021-02-01 | 96 -> 98 | 432.94 -> 255.85 | |
2020-02-01 | 96 | 432.94 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 870 |
|
4/24 | 100% | 2.80 | CRR | Meeting in the billiard room |
2 | 667 |
|
26/76 | 100% | 4.20 | RR | IX Russian Riichi Championship |
3 | 164 |
|
47/56 | 71% | 3.30 | RR | Kirov Tournament |
4 | 128 |
|
35/40 | 0% | 2.90 | EMA | Big open chiitoitsu in a small tenpai |
5 | 852 |
|
5/28 | 0% | 2.60 | RR | And yet the sinner collects tanyao |
6 | 590 |
|
35/84 | 0% | 4.20 | EMA | Haru Shanten 2019 |
7 | 383 |
|
30/48 | 0% | 3.10 | RR | Agari team tournament 2019 |