Ermolaev Andrei
From Sarov, Russia
EMA: 15990413
Common russian riichi rating (CRR)
Rating date March 28, 2023 (latest changes March 28, 2023).
40 place (451.89).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4.05 * 1 + 3.50 * 0.86 + 2.80 * 1) = 14.04985
p1 = (163.64 * 3.30 * 0.57 + 666.67 * 4.20 * 1 + 869.57 * 2.80 * 1 + 0 + 0) / (3.30 * 0.57 + 4.20 * 1 + 2.80 * 1 + 1 + 1) = 509.23511935930156
p2 = (666.67 * 4.20 * 1 + 869.57 * 2.80 * 1 + 163.64 * 3.30 * 0.57) / max_coefficients = 394.54798449805526
score = 509.23511935930156 * 0.5 + 394.54798449805526 * 0.5 = 451.8915519286784
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-03-20 | 40 | 445.11 -> 451.89 | |
2023-03-06 | 43 -> 40 | 440.59 -> 445.11 |
Kirov Tournament: 71% -> 57% |
2023-02-25 | 41 -> 43 | 440.59 | |
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% |
2022-12-03 | 98 -> 86 | 255.85 -> 272.54 | |
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 | 57% | 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 |