Ermolaev Andrei

Winner Yoroshiku League 2

From Sarov, Russia

EMA: 15990413

Player page

Common russian riichi rating (CRR)

Rating date Oct. 9, 2026 (latest changes Oct. 8, 2026).

247 place (247.42).

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 * 0.71 + 32.26 * 3 * 1 + 342.66 * 4.71 * 1 + 0) / (2.80 * 0.14 + 4.10 * 0.71 + 3 * 1 + 4.71 * 1 + 1) = 277.8120652061053

p2 = (342.66 * 4.71 * 1 + 492.54 * 4.10 * 0.71 + 478.26 * 2.80 * 0.14 + 32.26 * 3 * 1) / max_coefficients = 217.03504218040234

score = 277.8120652061053 * 0.5 + 217.03504218040234 * 0.5 = 247.4235536932538

Rating changes

Show

all results
Date Place Points Reason
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
2026-09-07 240 -> 239 256.85
2026-09-06 233 -> 240 256.85
2026-09-01 238 -> 233 256.85
2026-08-31 238 256.48 -> 256.85
2026-08-30 235 -> 238 256.48
2026-08-27 236 -> 235 256.48

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 71% 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