Astafev Mikhail

From Yekaterinburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date Oct. 11, 2025 (latest changes Oct. 9, 2025).

129 place (358.89).

max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8

p1 = (333.33 * 1.60 * 0.57 + 592.59 * 2.30 * 0.14 + 716.42 * 4.10 * 1 + 212.77 * 2.80 * 0.71 + 202.53 * 3.65 * 0.71 + 354.84 * 2.40 * 1 + 102.80 * 4.60 * 0.57 + 629.63 * 2.30 * 0.43) / (1.60 * 0.57 + 2.30 * 0.14 + 4.10 * 1 + 2.80 * 0.71 + 3.65 * 0.71 + 2.40 * 1 + 4.60 * 0.57 + 2.30 * 0.43) = 384.162476866446

p2 = (716.42 * 4.10 * 1 + 354.84 * 2.40 * 1 + 629.63 * 2.30 * 0.43 + 202.53 * 3.65 * 0.71) / max_coefficients = 333.62432432432433

score = 384.162476866446 * 0.5 + 333.62432432432433 * 0.5 = 358.8934005953852

Rating changes

Show

all results
Date Place Points Reason
2025-10-09 128 -> 129 358.89
2025-10-04 131 -> 128 359.59 -> 358.89

Riichi over Volga: 86% -> 71%
2025-09-14 132 -> 131 357.63 -> 359.59

Guardian of the Winds: 86% -> 71%
2025-09-12 137 -> 132 352.54 -> 357.63

X Russian Championship: 71% -> 57%
2025-09-05 137 354.41 -> 352.54

Akademgorodok: Riichi Mahjong Tournament 2024: 71% -> 57%

Finding Dora: 29% -> 14%
2025-09-03 138 -> 137 352.64 -> 354.41

SPB Riichi Open 2023: 14% -> 0%
2025-09-01 140 -> 138 348.16 -> 352.64
2025-08-31 138 -> 140 348.16
2025-08-26 126 -> 138 375.61 -> 348.16
2025-08-25 122 -> 126 384.56 -> 375.61

Chasing Kan: 57% -> 43%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 716 2025-06-15 20/68 100% 4.10 RR 13 bloody tiles Perm
2 355 2025-03-02 21/32 100% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
3 203 2024-08-04 64/80 71% 3.65 RR Riichi over Volga Samara
4 213 2024-07-14 38/48 71% 2.80 RR Guardian of the Winds Yekaterinburg
5 103 2024-05-12 97/108 57% 4.60 RR X Russian Championship Perm
6 333 2024-05-05 11/16 57% 1.60 CRR Akademgorodok: Riichi Mahjong Tournament 2024 Novosibirsk
7 630 2024-02-25 11/28 43% 2.30 CRR Chasing Kan Yekaterinburg
8 593 2023-11-05 12/28 14% 2.30 CRR Finding Dora Yekaterinburg
9 252 2023-09-03 81/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
10 368 2023-08-27 13/20 0% 2.10 CRR 13 tiles until tempai Yekaterinburg
11 678 2023-06-11 29/88 0% 3.75 RR Money can not buy tenpai Perm