Ermolaev Andrei

Winner Yoroshiku League 2

From Sarov, Russia

EMA: 15990413

Player page

Common russian riichi rating (CRR)

Rating date Oct. 30, 2026 (latest changes Oct. 29, 2026).

255 place (232.57).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41

p1 = (478.26 * 2.80 * 0.14 + 492.54 * 4.10 * 0.57 + 32.26 * 3 * 1 + 342.66 * 4.71 * 1 + 0) / (2.80 * 0.14 + 4.10 * 0.57 + 3 * 1 + 4.71 * 1 + 1) = 266.82767448480115

p2 = (342.66 * 4.71 * 1 + 492.54 * 4.10 * 0.57 + 478.26 * 2.80 * 0.14 + 32.26 * 3 * 1) / max_coefficients = 198.30889033095394

score = 266.82767448480115 * 0.5 + 198.30889033095394 * 0.5 = 232.56828240787755

Rating changes

Show

all results
Date Place Points Reason
2026-10-27 256 -> 255 232.57
2026-10-26 257 -> 256 232.57
2026-10-24 256 -> 257 232.57
2026-10-15 247 -> 256 247.42 -> 232.57

13 bloody tiles: 71% -> 57%
2026-10-13 249 -> 247 247.42
2026-10-10 247 -> 249 247.42
2026-10-02 248 -> 247 247.42
2026-10-01 239 -> 248 256.85 -> 247.42

Riichi never changing: 29% -> 14%
2026-09-26 238 -> 239 256.85
2026-09-15 239 -> 238 256.85

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 343 2026-06-14 95/144 100% 4.71 RR XII Russian Championship Samara
2 32 2025-11-30 31/32 100% 3.00 RR Final Cup 2025 Moscow
3 493 2025-06-15 35/68 57% 4.10 RR 13 bloody tiles Perm
4 478 2024-12-01 13/24 14% 2.80 CRR Riichi never changing Moscow
5 664 2024-05-12 37/108 0% 4.60 RR X Russian Championship Perm
6 870 2022-12-18 4/24 0% 2.80 CRR Meeting in the billiard room Moscow
7 667 2022-11-06 26/76 0% 4.20 RR IX Russian Riichi Championship Perm
8 164 2021-11-06 47/56 0% 3.30 RR Kirov Tournament Kirov
9 128 2020-03-08 35/40 0% 2.90 EMA Big open chiitoitsu in a small tenpai Kirov
10 852 2019-09-08 5/28 0% 2.60 RR And yet the sinner collects tanyao Kirov
11 590 2019-05-04 35/84 0% 4.20 EMA Haru Shanten 2019 Perm
12 383 2019-01-13 30/48 0% 3.10 RR Agari team tournament 2019 Moscow