Astafev Mikhail

From Yekaterinburg, Russia

Player page

Internal rating (RR)

Rating date Aug. 14, 2026 (latest changes Aug. 13, 2026).

142 place (325.49).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997

p1 = (354.84 * 2.40 * 0.57 + 716.42 * 4.10 * 0.86 + 209.79 * 4.71 * 1 + 258.06 * 2.40 * 1 + 0) / (2.40 * 0.57 + 4.10 * 0.86 + 4.71 * 1 + 2.40 * 1 + 1) = 354.86519533345086

p2 = (716.42 * 4.10 * 0.86 + 209.79 * 4.71 * 1 + 258.06 * 2.40 * 1 + 354.84 * 2.40 * 0.57) / max_coefficients = 296.10937639454204

score = 354.86519533345086 * 0.5 + 296.10937639454204 * 0.5 = 325.4872858639965

Rating changes

Show

all results
Date Place Points Reason
2026-08-04 138 -> 142 336.49 -> 325.49

Riichi over Volga: 14% -> 0%
2026-08-02 137 -> 138 336.49
2026-07-26 138 -> 137 336.49
2026-07-18 135 -> 138 336.49
2026-07-14 138 -> 135 333.95 -> 336.49

Guardian of the Winds: 14% -> 0%
2026-07-12 138 330.43 -> 333.95

Poplar fluff. Mahjong. July.: 0% -> 100%
2026-07-03 139 -> 138 330.43
2026-07-02 136 -> 139 333.66 -> 330.43

Riichi Maslenitsa (shrovetide): 71% -> 57%
2026-07-01 139 -> 136 333.66
2026-06-16 142 -> 139 333.66

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 258 2026-07-12 24/32 100% 2.40 RR Poplar fluff. Mahjong. July. Yekaterinburg
2 210 2026-06-14 114/144 100% 4.71 RR XII Russian Championship Samara
3 716 2025-06-15 20/68 86% 4.10 RR 13 bloody tiles Perm
4 355 2025-03-02 21/32 57% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
5 203 2024-08-04 64/80 0% 3.65 RR Riichi over Volga Samara
6 213 2024-07-14 38/48 0% 2.80 RR Guardian of the Winds Yekaterinburg
7 103 2024-05-12 97/108 0% 4.60 RR X Russian Championship Perm
8 252 2023-09-03 81/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
9 678 2023-06-11 29/88 0% 3.75 RR Money can not buy tenpai Perm