Astafev Mikhail

From Yekaterinburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date Dec. 10, 2025 (latest changes Dec. 9, 2025).

134 place (354.56).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (629.63 * 2.30 * 0.29 + 333.33 * 1.60 * 0.43 + 102.80 * 4.60 * 0.43 + 212.77 * 2.80 * 0.57 + 202.53 * 3.65 * 0.57 + 354.84 * 2.40 * 1 + 716.42 * 4.10 * 1) / (2.30 * 0.29 + 1.60 * 0.43 + 4.60 * 0.43 + 2.80 * 0.57 + 3.65 * 0.57 + 2.40 * 1 + 4.10 * 1) = 399.7597029917126

p2 = (716.42 * 4.10 * 1 + 354.84 * 2.40 * 1 + 202.53 * 3.65 * 0.57 + 629.63 * 2.30 * 0.29) / max_coefficients = 309.36856187290965

score = 399.7597029917126 * 0.5 + 309.36856187290965 * 0.5 = 354.5641324323111

Rating changes

Show

all results
Date Place Points Reason
2025-12-07 129 -> 134 354.56
2025-12-06 128 -> 129 354.56
2025-12-04 131 -> 128 354.43 -> 354.56

Riichi over Volga: 71% -> 57%
2025-11-22 129 -> 131 354.43
2025-11-19 130 -> 129 354.43
2025-11-14 131 -> 130 352.33 -> 354.43

Guardian of the Winds: 71% -> 57%
2025-11-12 137 -> 131 346.13 -> 352.33

X Russian Championship: 57% -> 43%
2025-11-10 139 -> 137 346.13
2025-11-05 139 345.82 -> 346.13

Akademgorodok: Riichi Mahjong Tournament 2024: 57% -> 43%

Finding Dora: 14% -> 0%
2025-11-04 131 -> 139 355.32 -> 345.82

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 716 2025-06-15 20/68 100% 4.10 RR 13 bloody tiles Perm
2 355 2025-03-02 21/32 100% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
3 203 2024-08-04 64/80 57% 3.65 RR Riichi over Volga Samara
4 213 2024-07-14 38/48 57% 2.80 RR Guardian of the Winds Yekaterinburg
5 103 2024-05-12 97/108 43% 4.60 RR X Russian Championship Perm
6 333 2024-05-05 11/16 43% 1.60 CRR Akademgorodok: Riichi Mahjong Tournament 2024 Novosibirsk
7 630 2024-02-25 11/28 29% 2.30 CRR Chasing Kan Yekaterinburg
8 593 2023-11-05 12/28 0% 2.30 CRR Finding Dora Yekaterinburg
9 252 2023-09-03 81/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
10 368 2023-08-27 13/20 0% 2.10 CRR 13 tiles until tempai Yekaterinburg
11 678 2023-06-11 29/88 0% 3.75 RR Money can not buy tenpai Perm