Astafev Mikhail

From Yekaterinburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date Jan. 8, 2026 (latest changes Jan. 7, 2026).

141 place (349.78).

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

p1 = (629.63 * 2.30 * 0.14 + 333.33 * 1.60 * 0.29 + 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 * 0.14 + 1.60 * 0.29 + 4.60 * 0.43 + 2.80 * 0.57 + 3.65 * 0.57 + 2.40 * 1 + 4.10 * 1) = 395.0990815027259

p2 = (716.42 * 4.10 * 1 + 354.84 * 2.40 * 1 + 202.53 * 3.65 * 0.57 + 212.77 * 2.80 * 0.57) / max_coefficients = 304.46354515050166

score = 395.0990815027259 * 0.5 + 304.46354515050166 * 0.5 = 349.78131332661377

Rating changes

Show

Date Place Points Reason
2026-01-05 141 349.25 -> 349.78

Akademgorodok: Riichi Mahjong Tournament 2024: 43% -> 29%

2026-01-03 139 -> 141 349.25
2026-01-01 142 -> 139 349.25
2025-12-27 137 -> 142 349.25
2025-12-25 133 -> 137 354.56 -> 349.25

Chasing Kan: 29% -> 14%

2025-12-13 134 -> 133 354.56
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

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 29% 1.60 CRR Akademgorodok: Riichi Mahjong Tournament 2024 Novosibirsk
7 630 2024-02-25 11/28 14% 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