Astafev Mikhail

From Yekaterinburg, Russia

Player page

Internal rating (RR)

Rating date March 23, 2026 (latest changes March 14, 2026).

115 place (368.92).

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

p1 = (102.80 * 4.60 * 0.14 + 212.77 * 2.80 * 0.29 + 202.53 * 3.65 * 0.43 + 354.84 * 2.40 * 0.86 + 716.42 * 4.10 * 1) / (4.60 * 0.14 + 2.80 * 0.29 + 3.65 * 0.43 + 2.40 * 0.86 + 4.10 * 1) = 459.9601469920131

p2 = (716.42 * 4.10 * 1 + 354.84 * 2.40 * 0.86 + 202.53 * 3.65 * 0.43 + 212.77 * 2.80 * 0.29) / max_coefficients = 277.8775919732442

score = 459.9601469920131 * 0.5 + 277.8775919732442 * 0.5 = 368.9188694826287

Rating changes

Show

all results
Date Place Points Reason
2026-03-14 117 -> 115 366.60 -> 368.92

Guardian of the Winds: 43% -> 29%
2026-03-12 122 -> 117 355.48 -> 366.60

X Russian Championship: 29% -> 14%
2026-03-10 123 -> 122 355.48
2026-03-02 122 -> 123 358.37 -> 355.48

Riichi Maslenitsa (shrovetide): 100% -> 86%
2026-03-01 123 -> 122 358.37
2026-02-23 117 -> 123 358.37
2026-02-16 119 -> 117 358.37
2026-02-13 118 -> 119 358.37
2026-02-09 119 -> 118 358.37
2026-02-08 115 -> 119 358.37

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 86% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
3 203 2024-08-04 64/80 43% 3.65 RR Riichi over Volga Samara
4 213 2024-07-14 38/48 29% 2.80 RR Guardian of the Winds Yekaterinburg
5 103 2024-05-12 97/108 14% 4.60 RR X Russian Championship Perm
6 252 2023-09-03 81/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
7 678 2023-06-11 29/88 0% 3.75 RR Money can not buy tenpai Perm