Ermolaev Alexey
From Kirov, Russia
EMA: 15990340
Common russian riichi rating (CRR)
Rating date Nov. 6, 2023 (latest changes Nov. 6, 2023).
42 place (473.01).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.80 * 1) = 14.149820000000002
p1 = (506.67 * 4.20 * 0.86 + 356.32 * 3.75 * 1 + 66.67 * 1.20 * 1 + 616.82 * 4 * 1 + 333.33 * 1.20 * 0.57 + 478.26 * 2.80 * 1) / (4.20 * 0.86 + 3.75 * 1 + 1.20 * 1 + 4 * 1 + 1.20 * 0.57 + 2.80 * 1) = 453.6871316765926
p2 = (616.82 * 4 * 1 + 506.67 * 4.20 * 0.86 + 478.26 * 2.80 * 1 + 356.32 * 3.75 * 1) / max_coefficients = 492.34124533032923
score = 453.6871316765926 * 0.5 + 492.34124533032923 * 0.5 = 473.0141885034609
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-11-06 | 49 -> 42 | 416.34 -> 473.01 |
IX Russian Riichi Championship: 100% -> 86% Kirov Tournament: 14% -> 0% |
| 2021-02-01 | 53 -> 49 | 553.91 -> 416.34 | |
| 2020-02-01 | 53 | 553.91 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 617 |
|
42/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 2 | 67 |
|
15/16 | 100% | 1.20 | CRR | Riichi or die | Kirov | |
| 3 | 356 |
|
57/88 | 100% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 4 | 478 |
|
13/24 | 100% | 2.80 | CRR | Meeting in the billiard room | Moscow | |
| 5 | 507 |
|
38/76 | 86% | 4.20 | RR | IX Russian Riichi Championship | Perm | |
| 6 | 333 |
|
11/16 | 57% | 1.20 | CRR | Vyatka rooster | Kirov | |
| 7 | 909 |
|
6/56 | 0% | 3.30 | RR | Kirov Tournament | Kirov | |
| 8 | 205 |
|
32/40 | 0% | 2.90 | EMA | Big open chiitoitsu in a small tenpai | Kirov | |
| 9 | 279 |
|
81/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship | Moscow | |
| 10 | 556 |
|
29/64 | 0% | 3.85 | EMA | Aki Shanten 2019 | Perm | |
| 11 | 889 |
|
4/28 | 0% | 2.60 | RR | And yet the sinner collects tanyao | Kirov | |
| 12 | 114 |
|
32/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2019 | Moscow | |
| 13 | 843 |
|
14/84 | 0% | 4.20 | EMA | Haru Shanten 2019 | Perm | |
| 14 | 130 |
|
21/24 | 0% | 2.50 | RR | Toi-Toi-man Tournament | Kirov | |
| 15 | 648 |
|
33/92 | 0% | 3.80 | EMA | VII Russian Riichi Championship "Aki Shanten" | Perm | |
| 16 | 304 |
|
17/24 | 0% | 1.40 | RR | Seven ryanmens | Kirov | |
| 17 | 155 |
|
61/72 | 0% | 3.85 | EMA | Haru Shanten 2018 | Perm | |
| 18 | 733 |
|
5/16 | 0% | 1.20 | RR | Yakuman in discard | Kirov | |
| 19 | 28 |
|
70/72 | 0% | 3.25 | EMA | Perm Riichi 2017 Aki Shanten | Perm | |
| 20 | 667 |
|
6/16 | 0% | 1.20 | RR | Crouching Peacock, Hidden Dragon 2017 | Kirov | |
| 21 | 933 |
|
🥈 | 2/16 | 0% | 1.00 | RR | Third riichi mahjong tournament, Kirov 2017 | Kirov |
| 22 | 545 |
|
6/12 | 0% | 0.90 | CRR | Second riichi mahjong tournament, Kirov 2017 | Kirov |