Astafev Mikhail

From Yekaterinburg, Russia

Player page

Internal rating (RR)

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

94 place (447.03).

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

p1 = (354.84 * 2.40 * 0.43 + 716.42 * 4.10 * 0.71 + 209.79 * 4.71 * 1 + 258.06 * 2.40 * 1 + 816.90 * 3.40 * 1) / (2.40 * 0.43 + 4.10 * 0.71 + 4.71 * 1 + 2.40 * 1 + 3.40 * 1) = 473.34707930383547

p2 = (816.90 * 3.40 * 1 + 716.42 * 4.10 * 0.71 + 209.79 * 4.71 * 1 + 258.06 * 2.40 * 1) / max_coefficients = 420.70343932511355

score = 473.34707930383547 * 0.5 + 420.70343932511355 * 0.5 = 447.0252593144745

Rating changes

Show

all results
Date Place Points Reason
2026-10-03 95 -> 94 447.03
2026-09-13 96 -> 95 447.03
2026-09-06 148 -> 96 300.74 -> 447.03

Sunset Wolf Cup 2026: 0% -> 100%
2026-09-03 149 -> 148 300.74
2026-09-02 149 304.93 -> 300.74

Riichi Maslenitsa (shrovetide): 57% -> 43%
2026-09-01 154 -> 149 304.93
2026-08-31 153 -> 154 304.49 -> 304.93
2026-08-26 154 -> 153 304.49
2026-08-15 142 -> 154 325.49 -> 304.49

13 bloody tiles: 86% -> 71%
2026-08-04 138 -> 142 336.49 -> 325.49

Riichi over Volga: 14% -> 0%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 817 2026-09-06 14/72 100% 3.40 RR Sunset Wolf Cup 2026 Saint Petersburg
2 258 2026-07-12 24/32 100% 2.40 RR Poplar fluff. Mahjong. July. Yekaterinburg
3 210 2026-06-14 114/144 100% 4.71 RR XII Russian Championship Samara
4 716 2025-06-15 20/68 71% 4.10 RR 13 bloody tiles Perm
5 355 2025-03-02 21/32 43% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
6 203 2024-08-04 64/80 0% 3.65 RR Riichi over Volga Samara
7 213 2024-07-14 38/48 0% 2.80 RR Guardian of the Winds Yekaterinburg
8 103 2024-05-12 97/108 0% 4.60 RR X Russian Championship Perm
9 252 2023-09-03 81/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
10 678 2023-06-11 29/88 0% 3.75 RR Money can not buy tenpai Perm