Ermolaev Alexey
From Kirov, Russia
EMA: 15990340
Common russian riichi rating (CRR)
Rating date Sept. 3, 2024 (latest changes Sept. 3, 2024).
27 place (640.89).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.65 * 1 + 4 * 0.86) = 15.5284
p1 = (478.26 * 2.80 * 0.29 + 506.67 * 4.20 * 0.29 + 356.32 * 3.75 * 0.71 + 66.67 * 1.20 * 0.86 + 616.82 * 4 * 0.86 + 897.20 * 4.60 * 1 + 747.37 * 3.85 * 1) / (2.80 * 0.29 + 4.20 * 0.29 + 3.75 * 0.71 + 1.20 * 0.86 + 4 * 0.86 + 4.60 * 1 + 3.85 * 1) = 633.0667208023452
p2 = (897.20 * 4.60 * 1 + 747.37 * 3.85 * 1 + 616.82 * 4 * 0.86 + 356.32 * 3.75 * 0.71) / max_coefficients = 648.722984982355
score = 633.0667208023452 * 0.5 + 648.722984982355 * 0.5 = 640.8948528923502
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2024-09-03 | 27 | 640.07 -> 640.89 |
SPB Riichi Open 2023: 100% -> 86% |
2024-09-01 | 40 -> 27 | 567.39 -> 640.07 |
SPB Riichi Open 2024: 0% -> 100% |
2024-08-26 | 40 | 564.22 -> 567.39 |
Riichi or die: 100% -> 86% |
2024-08-18 | 41 -> 40 | 562.65 -> 564.22 |
Meeting in the billiard room: 43% -> 29% |
2024-08-11 | 43 -> 41 | 561.89 -> 562.65 |
Money can not buy tenpai: 86% -> 71% |
2024-08-04 | 37 -> 43 | 572.79 -> 561.89 | |
2024-07-14 | 33 -> 37 | 572.79 | |
2024-07-06 | 32 -> 33 | 581.57 -> 572.79 |
IX Russian Riichi Championship: 43% -> 29% |
2024-07-03 | 33 -> 32 | 580.26 -> 581.57 |
Vyatka rooster: 14% -> 0% |
2024-06-18 | 33 | 579.05 -> 580.26 |
Meeting in the billiard room: 57% -> 43% |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 747 |
|
25/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 |
2 | 897 |
|
12/108 | 100% | 4.60 | RR | X Russian Championship |
3 | 617 |
|
42/108 | 86% | 4.00 | RR | SPB Riichi Open 2023 |
4 | 67 |
|
15/16 | 86% | 1.20 | CRR | Riichi or die |
5 | 356 |
|
57/88 | 71% | 3.75 | RR | Money can not buy tenpai |
6 | 478 |
|
13/24 | 29% | 2.80 | CRR | Meeting in the billiard room |
7 | 507 |
|
38/76 | 29% | 4.20 | RR | IX Russian Riichi Championship |
8 | 333 |
|
11/16 | 0% | 1.20 | CRR | Vyatka rooster |
9 | 909 |
|
6/56 | 0% | 3.30 | RR | Kirov Tournament |
10 | 205 |
|
32/40 | 0% | 2.90 | EMA | Big open chiitoitsu in a small tenpai |
11 | 279 |
|
81/112 | 0% | 4.05 | EMA | VIII Russian Riichi Championship |
12 | 556 |
|
29/64 | 0% | 3.85 | EMA | Aki Shanten 2019 |
13 | 889 |
|
4/28 | 0% | 2.60 | RR | And yet the sinner collects tanyao |
14 | 114 |
|
32/36 | 0% | 3.20 | RR | Moscow Open Riichi Marathon 2019 |
15 | 843 |
|
14/84 | 0% | 4.20 | EMA | Haru Shanten 2019 |
16 | 130 |
|
21/24 | 0% | 2.50 | RR | Toi-Toi-man Tournament |
17 | 648 |
|
33/92 | 0% | 3.80 | EMA | VII Russian Riichi Championship "Aki Shanten" |
18 | 304 |
|
17/24 | 0% | 1.40 | RR | Seven ryanmens |
19 | 155 |
|
61/72 | 0% | 3.85 | EMA | Haru Shanten 2018 |
20 | 733 |
|
5/16 | 0% | 1.20 | RR | Yakuman in discard |
21 | 28 |
|
70/72 | 0% | 3.25 | EMA | Perm Riichi 2017 Aki Shanten |
22 | 667 |
|
6/16 | 0% | 1.20 | RR | Crouching Peacock, Hidden Dragon 2017 |
23 | 933 |
|
2/16 | 0% | 1.00 | RR | Third riichi mahjong tournament, Kirov 2017 |
24 | 545 |
|
6/12 | 0% | 0.90 | CRR | Second riichi mahjong tournament, Kirov 2017 |