Ermolaev Andrei

Winner Yoroshiku League 2

From Sarov, Russia

EMA: 15990413

Player page

Common russian riichi rating (CRR)

Rating date Oct. 31, 2025 (latest changes Oct. 27, 2025).

115 place (399.10).

max_coefficients = (4.10 * 1 + 3.50 * 1 + 3.45 * 1 + 3.85 * 0.86) = 14.349835

p1 = (663.55 * 4.60 * 0.57 + 478.26 * 2.80 * 1 + 492.54 * 4.10 * 1 + 0 + 0) / (4.60 * 0.57 + 2.80 * 1 + 4.10 * 1 + 1 + 1) = 442.6132243391126

p2 = (492.54 * 4.10 * 1 + 663.55 * 4.60 * 0.57 + 478.26 * 2.80 * 1) / max_coefficients = 355.5887576407673

score = 442.6132243391126 * 0.5 + 355.5887576407673 * 0.5 = 399.10099098994

Rating changes

Show

all results
Date Place Points Reason
2025-10-13 116 -> 115 393.69 -> 399.10
2025-09-30 115 -> 116 393.69
2025-09-26 116 -> 115 393.69
2025-09-15 117 -> 116 393.69
2025-09-12 112 -> 117 414.39 -> 393.69

X Russian Championship: 71% -> 57%
2025-09-10 114 -> 112 414.39
2025-09-03 116 -> 114 414.39
2025-09-01 119 -> 116 409.46 -> 414.39
2025-08-31 113 -> 119 409.46
2025-08-22 114 -> 113 409.46

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
2 478 2024-12-01 13/24 100% 2.80 CRR Riichi never changing Moscow
3 664 2024-05-12 37/108 57% 4.60 RR X Russian Championship Perm
4 870 2022-12-18 4/24 0% 2.80 CRR Meeting in the billiard room Moscow
5 667 2022-11-06 26/76 0% 4.20 RR IX Russian Riichi Championship Perm
6 164 2021-11-06 47/56 0% 3.30 RR Kirov Tournament Kirov
7 128 2020-03-08 35/40 0% 2.90 EMA Big open chiitoitsu in a small tenpai Kirov
8 852 2019-09-08 5/28 0% 2.60 RR And yet the sinner collects tanyao Kirov
9 590 2019-05-04 35/84 0% 4.20 EMA Haru Shanten 2019 Perm
10 383 2019-01-13 30/48 0% 3.10 RR Agari team tournament 2019 Moscow