Ermolaev Alexey

Winner Yoroshiku League 2

From Kirov, Russia

EMA: 15990340

Player page

Internal rating (RR)

Rating date Dec. 10, 2025 (latest changes Dec. 9, 2025).

23 place (686.31).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (897.20 * 4.60 * 0.43 + 747.37 * 3.85 * 0.71 + 193.55 * 3.10 * 1 + 971.43 * 3.50 * 1 + 671.64 * 4.10 * 1 + 627.91 * 3 * 1 + 709.68 * 3 * 1) / (4.60 * 0.43 + 3.85 * 0.71 + 3.10 * 1 + 3.50 * 1 + 4.10 * 1 + 3 * 1 + 3 * 1) = 681.1185804618373

p2 = (971.43 * 3.50 * 1 + 671.64 * 4.10 * 1 + 709.68 * 3 * 1 + 747.37 * 3.85 * 0.71) / max_coefficients = 691.5090301003346

score = 681.1185804618373 * 0.5 + 691.5090301003346 * 0.5 = 686.3138052810859

Rating changes

Show

all results
Date Place Points Reason
2025-11-30 22 -> 23 675.78 -> 686.31

Final Cup 2025: 0% -> 100%
2025-11-12 20 -> 22 695.45 -> 675.78

X Russian Championship: 57% -> 43%
2025-11-04 16 -> 20 711.52 -> 695.45
2025-11-01 17 -> 16 725.44 -> 711.52

SPB Riichi Open 2024: 86% -> 71%
2025-10-13 16 -> 17 713.80 -> 725.44
2025-10-04 17 -> 16 713.80
2025-09-12 14 -> 17 737.15 -> 713.80

X Russian Championship: 71% -> 57%
2025-09-10 13 -> 14 737.15
2025-09-03 15 -> 13 736.11 -> 737.15

SPB Riichi Open 2023: 14% -> 0%
2025-09-01 12 -> 15 740.08 -> 736.11

SPB Riichi Open 2024: 100% -> 86%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 710 2025-11-30 10/32 100% 3.00 RR Final Cup 2025 Moscow
2 628 2025-08-03 17/44 100% 3.00 RR Two roosters and Chuckles Kirov
3 672 2025-06-15 23/68 100% 4.10 RR 13 bloody tiles Perm
4 971 2025-05-03 🥉 3/71 100% 3.50 RR Riichi over The Volga 2025 Samara
5 194 2025-01-07 26/32 100% 3.10 RR Moscow Open Riichi Marathon Moscow
6 747 2024-09-01 25/96 71% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
7 897 2024-05-12 12/108 43% 4.60 RR X Russian Championship Perm
8 617 2023-09-03 42/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
9 356 2023-06-11 57/88 0% 3.75 RR Money can not buy tenpai Perm
10 507 2022-11-06 38/76 0% 4.20 RR IX Russian Riichi Championship Perm
11 909 2021-11-06 6/56 0% 3.30 RR Kirov Tournament Kirov
12 205 2020-03-08 32/40 0% 2.90 EMA Big open chiitoitsu in a small tenpai Kirov
13 279 2019-12-15 81/112 0% 4.05 EMA VIII Russian Riichi Championship Moscow
14 556 2019-11-04 29/64 0% 3.85 EMA Aki Shanten 2019 Perm
15 889 2019-09-08 4/28 0% 2.60 RR And yet the sinner collects tanyao Kirov
16 114 2019-07-21 32/36 0% 3.20 RR Moscow Open Riichi Marathon 2019 Moscow
17 843 2019-05-04 14/84 0% 4.20 EMA Haru Shanten 2019 Perm
18 130 2019-03-09 21/24 0% 2.50 RR Toi-Toi-man Tournament Kirov
19 648 2018-11-18 33/92 0% 3.80 EMA VII Russian Riichi Championship "Aki Shanten" Perm
20 304 2018-07-28 17/24 0% 1.40 RR Seven ryanmens Kirov
21 155 2018-05-01 61/72 0% 3.85 EMA Haru Shanten 2018 Perm
22 733 2018-01-05 5/16 0% 1.20 RR Yakuman in discard Kirov
23 28 2017-11-12 70/72 0% 3.25 EMA Perm Riichi 2017 Aki Shanten Perm
24 667 2017-10-07 6/16 0% 1.20 RR Crouching Peacock, Hidden Dragon 2017 Kirov
25 933 2017-07-08 🥈 2/16 0% 1.00 RR Third riichi mahjong tournament, Kirov 2017 Kirov