Ermolaev Andrei

Winner Yoroshiku League 2

From Sarov, Russia

EMA: 15990413

Player page

Internal rating (RR)

Rating date Nov. 20, 2025 (latest changes Nov. 14, 2025).

140 place (294.70).

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

p1 = (663.55 * 4.60 * 0.43 + 492.54 * 4.10 * 1 + 0 + 0 + 0) / (4.60 * 0.43 + 4.10 * 1 + 1 + 1 + 1) = 366.82003977265214

p2 = (492.54 * 4.10 * 1 + 663.55 * 4.60 * 0.43) / max_coefficients = 222.58394648829434

score = 366.82003977265214 * 0.5 + 222.58394648829434 * 0.5 = 294.7019931304732

Rating changes

Show

all results
Date Place Points Reason
2025-11-14 141 -> 140 294.70
2025-11-12 133 -> 141 319.30 -> 294.70

X Russian Championship: 57% -> 43%
2025-11-10 134 -> 133 319.30
2025-11-04 127 -> 134 325.02 -> 319.30
2025-11-01 128 -> 127 324.56 -> 325.02
2025-10-13 128 320.57 -> 324.56
2025-10-04 129 -> 128 320.57
2025-09-14 130 -> 129 320.57
2025-09-12 122 -> 130 344.07 -> 320.57

X Russian Championship: 71% -> 57%
2025-09-03 124 -> 122 344.07

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 43% 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