Ermolaev Andrei

Winner Yoroshiku League 2

From Sarov, Russia

EMA: 15990413

Player page

Internal rating (RR)

Rating date July 8, 2025 (latest changes July 3, 2025).

113 place (358.06).

max_coefficients = (4.10 * 1 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1) = 15.64266

p1 = (663.55 * 4.60 * 0.86 + 492.54 * 4.10 * 1 + 0 + 0 + 0) / (4.60 * 0.86 + 4.10 * 1 + 1 + 1 + 1) = 419.7865369394693

p2 = (663.55 * 4.60 * 0.86 + 492.54 * 4.10 * 1) / max_coefficients = 296.34090365705066

score = 419.7865369394693 * 0.5 + 296.34090365705066 * 0.5 = 358.06372029825997

Rating changes

Show

all results
Date Place Points Reason
2025-07-03 115 -> 113 358.06
2025-06-15 109 -> 115 319.42 -> 358.06

13 bloody tiles: 0% -> 100%
2024-11-03 111 -> 109 319.42
2024-10-13 104 -> 111 321.68 -> 319.42
2024-10-11 106 -> 104 321.68
2024-09-06 101 -> 106 342.92 -> 321.68

IX Russian Riichi Championship: 29% -> 14%
2024-09-03 102 -> 101 338.52 -> 342.92
2024-09-01 87 -> 102 344.77 -> 338.52
2024-08-11 89 -> 87 343.44 -> 344.77
2024-08-04 82 -> 89 348.47 -> 343.44

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 493 2025-06-15 35/68 100% 4.10 RR 13 bloody tiles Perm
2 664 2024-05-12 37/108 86% 4.60 RR X Russian Championship Perm
3 667 2022-11-06 26/76 0% 4.20 RR IX Russian Riichi Championship Perm
4 164 2021-11-06 47/56 0% 3.30 RR Kirov Tournament Kirov
5 128 2020-03-08 35/40 0% 2.90 EMA Big open chiitoitsu in a small tenpai Kirov
6 852 2019-09-08 5/28 0% 2.60 RR And yet the sinner collects tanyao Kirov
7 590 2019-05-04 35/84 0% 4.20 EMA Haru Shanten 2019 Perm
8 383 2019-01-13 30/48 0% 3.10 RR Agari team tournament 2019 Moscow