Ermolaev Andrei
From Sarov, Russia
EMA: 15990413
Common russian riichi rating (CRR)
Rating date Nov. 7, 2023 (latest changes Nov. 7, 2023).
57 place (428.01).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.80 * 1) = 14.149820000000002
p1 = (666.67 * 4.20 * 0.86 + 869.57 * 2.80 * 1 + 0 + 0 + 0) / (4.20 * 0.86 + 2.80 * 1 + 1 + 1 + 1) = 514.3353808902724
p2 = (869.57 * 2.80 * 1 + 666.67 * 4.20 * 0.86) / max_coefficients = 341.6764312196197
score = 514.3353808902724 * 0.5 + 341.6764312196197 * 0.5 = 428.0059060549461
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-11-06 | 95 -> 57 | 255.85 -> 428.01 |
IX Russian Riichi Championship: 100% -> 86% Kirov Tournament: 14% -> 0% |
| 2021-02-01 | 93 -> 95 | 432.94 -> 255.85 | |
| 2020-02-01 | 93 | 432.94 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 870 |
|
4/24 | 100% | 2.80 | CRR | Meeting in the billiard room | Moscow | |
| 2 | 667 |
|
26/76 | 86% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 3 | 164 |
|
47/56 | 0% | 3.30 | RR | Kirov Tournament | Kirov | |
| 4 | 128 |
|
35/40 | 0% | 2.90 | EMA | Big open chiitoitsu in a small tenpai | Kirov | |
| 5 | 852 |
|
5/28 | 0% | 2.60 | RR | And yet the sinner collects tanyao | Kirov | |
| 6 | 590 |
|
35/84 | 0% | 4.20 | EMA | Haru Shanten 2019 | Perm | |
| 7 | 383 |
|
30/48 | 0% | 3.10 | RR | Agari team tournament 2019 | Moscow |