Ermolaev Andrei

Winner Yoroshiku League 2

From Sarov, Russia

EMA: 15990413

Player page

Common russian riichi rating (CRR)

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

148 place (336.22).

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

p1 = (663.55 * 4.60 * 0.43 + 478.26 * 2.80 * 0.86 + 492.54 * 4.10 * 1 + 32.26 * 3 * 1 + 0) / (4.60 * 0.43 + 2.80 * 0.86 + 4.10 * 1 + 3 * 1 + 1) = 366.61123334594885

p2 = (492.54 * 4.10 * 1 + 663.55 * 4.60 * 0.43 + 478.26 * 2.80 * 0.86 + 32.26 * 3 * 1) / max_coefficients = 305.83076923076925

score = 366.61123334594885 * 0.5 + 305.83076923076925 * 0.5 = 336.22100128835905

Rating changes

Show

all results
Date Place Points Reason
2025-12-07 142 -> 148 336.22
2025-12-06 140 -> 142 336.22
2025-12-04 141 -> 140 336.22
2025-12-01 138 -> 141 344.36 -> 336.22

Riichi never changing: 100% -> 86%
2025-11-30 125 -> 138 370.71 -> 344.36

Final Cup 2025: 0% -> 100%
2025-11-22 123 -> 125 370.71
2025-11-12 117 -> 123 391.96 -> 370.71

X Russian Championship: 57% -> 43%
2025-11-10 118 -> 117 391.96
2025-11-04 113 -> 118 399.72 -> 391.96
2025-11-01 115 -> 113 399.10 -> 399.72

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 32 2025-11-30 31/32 100% 3.00 RR Final Cup 2025 Moscow
2 493 2025-06-15 35/68 100% 4.10 RR 13 bloody tiles Perm
3 478 2024-12-01 13/24 86% 2.80 CRR Riichi never changing Moscow
4 664 2024-05-12 37/108 43% 4.60 RR X Russian Championship Perm
5 870 2022-12-18 4/24 0% 2.80 CRR Meeting in the billiard room Moscow
6 667 2022-11-06 26/76 0% 4.20 RR IX Russian Riichi Championship Perm
7 164 2021-11-06 47/56 0% 3.30 RR Kirov Tournament Kirov
8 128 2020-03-08 35/40 0% 2.90 EMA Big open chiitoitsu in a small tenpai Kirov
9 852 2019-09-08 5/28 0% 2.60 RR And yet the sinner collects tanyao Kirov
10 590 2019-05-04 35/84 0% 4.20 EMA Haru Shanten 2019 Perm
11 383 2019-01-13 30/48 0% 3.10 RR Agari team tournament 2019 Moscow