Astafev Mikhail

From Yekaterinburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date Aug. 11, 2026 (latest changes Aug. 8, 2026).

143 place (381.89).

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 + 542.86 * 2.50 * 1 + 209.79 * 4.71 * 1 + 258.06 * 2.40 * 1) / (2.40 * 0.57 + 4.10 * 0.86 + 2.50 * 1 + 4.71 * 1 + 2.40 * 1) = 411.7686422033919

p2 = (716.42 * 4.10 * 0.86 + 542.86 * 2.50 * 1 + 209.79 * 4.71 * 1 + 258.06 * 2.40 * 1) / max_coefficients = 352.00534733605974

score = 411.7686422033919 * 0.5 + 352.00534733605974 * 0.5 = 381.8869947697258

Rating changes

Show

all results
Date Place Points Reason
2026-08-04 144 -> 143 378.25 -> 381.89

Riichi over Volga: 14% -> 0%
2026-08-02 143 -> 144 378.25
2026-07-26 145 -> 143 378.25
2026-07-23 146 -> 145 378.25
2026-07-18 145 -> 146 378.25
2026-07-14 145 375.77 -> 378.25

Guardian of the Winds: 14% -> 0%
2026-07-12 138 -> 145 384.54 -> 375.77

Poplar fluff. Mahjong. July.: 0% -> 100%
2026-07-03 139 -> 138 384.54
2026-07-02 137 -> 139 387.54 -> 384.54

Riichi Maslenitsa (shrovetide): 71% -> 57%
2026-06-29 138 -> 137 387.54

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
3 543 2026-04-19 17/36 100% 2.50 CRR Akademgorodok Riichi Mahjong Tournament 2026 Novosibirsk
4 716 2025-06-15 20/68 86% 4.10 RR 13 bloody tiles Perm
5 355 2025-03-02 21/32 57% 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
9 333 2024-05-05 11/16 0% 1.60 CRR Akademgorodok: Riichi Mahjong Tournament 2024 Novosibirsk
10 630 2024-02-25 11/28 0% 2.30 CRR Chasing Kan Yekaterinburg
11 593 2023-11-05 12/28 0% 2.30 CRR Finding Dora Yekaterinburg
12 252 2023-09-03 81/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
13 368 2023-08-27 13/20 0% 2.10 CRR 13 tiles until tempai Yekaterinburg
14 678 2023-06-11 29/88 0% 3.75 RR Money can not buy tenpai Perm