Astafev Mikhail

From Yekaterinburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date Sept. 21, 2026 (latest changes Sept. 17, 2026).

105 place (476.08).

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 + 542.86 * 2.50 * 1 + 209.79 * 4.71 * 1 + 258.06 * 2.40 * 1 + 816.90 * 3.40 * 1) / (2.40 * 0.43 + 4.10 * 0.71 + 2.50 * 1 + 4.71 * 1 + 2.40 * 1 + 3.40 * 1) = 483.5886975335455

p2 = (816.90 * 3.40 * 1 + 716.42 * 4.10 * 0.71 + 542.86 * 2.50 * 1 + 209.79 * 4.71 * 1) / max_coefficients = 468.58079169370535

score = 483.5886975335455 * 0.5 + 468.58079169370535 * 0.5 = 476.0847446136254

Rating changes

Show

all results
Date Place Points Reason
2026-09-07 106 -> 105 476.08
2026-09-06 156 -> 106 364.30 -> 476.08

Sunset Wolf Cup 2026: 0% -> 100%
2026-09-02 157 -> 156 363.74 -> 364.30

Riichi Maslenitsa (shrovetide): 57% -> 43%
2026-08-31 157 363.21 -> 363.74
2026-08-30 154 -> 157 363.21
2026-08-16 151 -> 154 363.21
2026-08-15 142 -> 151 381.89 -> 363.21

13 bloody tiles: 86% -> 71%
2026-08-13 143 -> 142 381.89
2026-08-04 144 -> 143 378.25 -> 381.89

Riichi over Volga: 14% -> 0%
2026-08-02 143 -> 144 378.25

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
4 543 2026-04-19 17/36 100% 2.50 CRR Akademgorodok Riichi Mahjong Tournament 2026 Novosibirsk
5 716 2025-06-15 20/68 71% 4.10 RR 13 bloody tiles Perm
6 355 2025-03-02 21/32 43% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
7 203 2024-08-04 64/80 0% 3.65 RR Riichi over Volga Samara
8 213 2024-07-14 38/48 0% 2.80 RR Guardian of the Winds Yekaterinburg
9 103 2024-05-12 97/108 0% 4.60 RR X Russian Championship Perm
10 333 2024-05-05 11/16 0% 1.60 CRR Akademgorodok: Riichi Mahjong Tournament 2024 Novosibirsk
11 630 2024-02-25 11/28 0% 2.30 CRR Chasing Kan Yekaterinburg
12 593 2023-11-05 12/28 0% 2.30 CRR Finding Dora Yekaterinburg
13 252 2023-09-03 81/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
14 368 2023-08-27 13/20 0% 2.10 CRR 13 tiles until tempai Yekaterinburg
15 678 2023-06-11 29/88 0% 3.75 RR Money can not buy tenpai Perm