Astafev Mikhail

From Yekaterinburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date Nov. 3, 2026 (latest changes Nov. 3, 2026).

107 place (459.59).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41

p1 = (354.84 * 2.40 * 0.29 + 716.42 * 4.10 * 0.57 + 542.86 * 2.50 * 1 + 209.79 * 4.71 * 1 + 258.06 * 2.40 * 1 + 816.90 * 3.40 * 1) / (2.40 * 0.29 + 4.10 * 0.57 + 2.50 * 1 + 4.71 * 1 + 2.40 * 1 + 3.40 * 1) = 477.8369689782409

p2 = (816.90 * 3.40 * 1 + 716.42 * 4.10 * 0.57 + 542.86 * 2.50 * 1 + 209.79 * 4.71 * 1) / max_coefficients = 441.3426346528228

score = 477.8369689782409 * 0.5 + 441.3426346528228 * 0.5 = 459.58980181553187

Rating changes

Show

all results
Date Place Points Reason
2026-11-03 108 -> 107 459.59
2026-11-02 109 -> 108 458.30 -> 459.59

Riichi Maslenitsa (shrovetide): 43% -> 29%
2026-11-01 108 -> 109 458.30
2026-10-31 107 -> 108 458.30
2026-10-27 108 -> 107 458.30
2026-10-24 107 -> 108 458.30
2026-10-15 101 -> 107 476.08 -> 458.30

13 bloody tiles: 71% -> 57%
2026-10-13 102 -> 101 476.08
2026-10-03 103 -> 102 476.08
2026-10-02 105 -> 103 476.08

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 57% 4.10 RR 13 bloody tiles Perm
6 355 2025-03-02 21/32 29% 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