Ermolaev Andrei
From Sarov, Russia
EMA: 15990413
Common russian riichi rating (CRR)
Rating date Sept. 6, 2023 (latest changes Sept. 6, 2023).
50 place (459.35).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915
p1 = (163.64 * 3.30 * 0.14 + 666.67 * 4.20 * 1 + 869.57 * 2.80 * 1 + 0 + 0) / (3.30 * 0.14 + 4.20 * 1 + 2.80 * 1 + 1 + 1) = 560.8309921164074
p2 = (666.67 * 4.20 * 1 + 869.57 * 2.80 * 1 + 163.64 * 3.30 * 0.14) / max_coefficients = 357.8778157794477
score = 560.8309921164074 * 0.5 + 357.8778157794477 * 0.5 = 459.35440394792755
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-09-06 | 51 -> 50 | 452.54 -> 459.35 |
Kirov Tournament: 29% -> 14% |
2023-09-03 | 38 -> 51 | 468.51 -> 452.54 | |
2023-08-26 | 37 -> 38 | 468.51 | |
2023-08-12 | 38 -> 37 | 460.47 -> 468.51 | |
2023-07-28 | 40 -> 38 | 460.47 | |
2023-07-06 | 42 -> 40 | 454.62 -> 460.47 |
Kirov Tournament: 43% -> 29% |
2023-07-03 | 43 -> 42 | 454.62 | |
2023-06-19 | 45 -> 43 | 454.62 | |
2023-06-12 | 46 -> 45 | 447.11 -> 454.62 | |
2023-06-11 | 40 -> 46 | 464.14 -> 447.11 |
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 | 14% | 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 |