Astafev Mikhail

From Yekaterinburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date June 29, 2026 (latest changes June 29, 2026).

137 place (387.54).

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

p1 = (212.77 * 2.80 * 0.14 + 202.53 * 3.65 * 0.14 + 354.84 * 2.40 * 0.71 + 716.42 * 4.10 * 0.86 + 542.86 * 2.50 * 1 + 209.79 * 4.71 * 1) / (2.80 * 0.14 + 3.65 * 0.14 + 2.40 * 0.71 + 4.10 * 0.86 + 2.50 * 1 + 4.71 * 1) = 423.79062786416455

p2 = (716.42 * 4.10 * 0.86 + 542.86 * 2.50 * 1 + 209.79 * 4.71 * 1 + 354.84 * 2.40 * 0.71) / max_coefficients = 351.29647857887227

score = 423.79062786416455 * 0.5 + 351.29647857887227 * 0.5 = 387.54355322151844

Rating changes

Show

all results
Date Place Points Reason
2026-06-29 138 -> 137 387.54
2026-06-27 139 -> 138 387.54
2026-06-15 130 -> 139 400.31 -> 387.54

13 bloody tiles: 100% -> 86%
2026-06-14 98 -> 130 444.38 -> 400.31

XII Russian Championship: 0% -> 100%
2026-06-13 101 -> 98 444.38
2026-06-04 103 -> 101 438.61 -> 444.38

Riichi over Volga: 29% -> 14%
2026-06-02 104 -> 103 438.61
2026-05-19 105 -> 104 438.61
2026-05-17 104 -> 105 438.61
2026-05-14 106 -> 104 432.31 -> 438.61

Guardian of the Winds: 29% -> 14%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 210 2026-06-14 114/144 100% 4.71 RR XII Russian Championship Samara
2 543 2026-04-19 17/36 100% 2.50 CRR Akademgorodok Riichi Mahjong Tournament 2026 Novosibirsk
3 716 2025-06-15 20/68 86% 4.10 RR 13 bloody tiles Perm
4 355 2025-03-02 21/32 71% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
5 203 2024-08-04 64/80 14% 3.65 RR Riichi over Volga Samara
6 213 2024-07-14 38/48 14% 2.80 RR Guardian of the Winds Yekaterinburg
7 103 2024-05-12 97/108 0% 4.60 RR X Russian Championship Perm
8 333 2024-05-05 11/16 0% 1.60 CRR Akademgorodok: Riichi Mahjong Tournament 2024 Novosibirsk
9 630 2024-02-25 11/28 0% 2.30 CRR Chasing Kan Yekaterinburg
10 593 2023-11-05 12/28 0% 2.30 CRR Finding Dora Yekaterinburg
11 252 2023-09-03 81/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
12 368 2023-08-27 13/20 0% 2.10 CRR 13 tiles until tempai Yekaterinburg
13 678 2023-06-11 29/88 0% 3.75 RR Money can not buy tenpai Perm