Astafev Mikhail

From Yekaterinburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date June 8, 2026 (latest changes June 8, 2026).

101 place (444.38).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.45 * 1 + 3.40 * 1) = 14.85

p1 = (212.77 * 2.80 * 0.14 + 202.53 * 3.65 * 0.14 + 354.84 * 2.40 * 0.71 + 716.42 * 4.10 * 1 + 542.86 * 2.50 * 1) / (2.80 * 0.14 + 3.65 * 0.14 + 2.40 * 0.71 + 4.10 * 1 + 2.50 * 1) = 551.4850815150457

p2 = (716.42 * 4.10 * 1 + 542.86 * 2.50 * 1 + 354.84 * 2.40 * 0.71 + 202.53 * 3.65 * 0.14) / max_coefficients = 337.2659932659933

score = 551.4850815150457 * 0.5 + 337.2659932659933 * 0.5 = 444.3755373905195

Rating changes

Show

all results
Date Place Points Reason
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%
2026-05-12 109 -> 106 419.62 -> 432.31

X Russian Championship: 14% -> 0%
2026-05-11 110 -> 109 419.62
2026-05-05 110 417.95 -> 419.62

Akademgorodok: Riichi Mahjong Tournament 2024: 14% -> 0%
2026-05-03 110 416.80 -> 417.95
2026-05-02 110 418.81 -> 416.80

Riichi Maslenitsa (shrovetide): 86% -> 71%

Tournaments

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