Astafev Mikhail

From Yekaterinburg, Russia

Player page

Internal rating (RR)

Rating date Aug. 8, 2025 (latest changes Aug. 4, 2025).

130 place (332.72).

max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2

p1 = (252.34 * 4 * 0.14 + 102.80 * 4.60 * 0.71 + 212.77 * 2.80 * 0.86 + 202.53 * 3.65 * 0.86 + 354.84 * 2.40 * 1 + 716.42 * 4.10 * 1) / (4 * 0.14 + 4.60 * 0.71 + 2.80 * 0.86 + 3.65 * 0.86 + 2.40 * 1 + 4.10 * 1) = 340.8832171122725

p2 = (716.42 * 4.10 * 1 + 354.84 * 2.40 * 1 + 202.53 * 3.65 * 0.86 + 212.77 * 2.80 * 0.86) / max_coefficients = 324.5480263157895

score = 340.8832171122725 * 0.5 + 324.5480263157895 * 0.5 = 332.71562171403104

Rating changes

Show

all results
Date Place Points Reason
2025-08-04 129 -> 130 332.37 -> 332.72

Riichi over Volga: 100% -> 86%
2025-08-03 127 -> 129 332.37
2025-07-30 126 -> 127 332.37
2025-07-14 125 -> 126 333.67 -> 332.37

Guardian of the Winds: 100% -> 86%
2025-07-13 122 -> 125 333.67
2025-07-12 125 -> 122 326.21 -> 333.67

X Russian Championship: 86% -> 71%
2025-07-03 125 325.06 -> 326.21

SPB Riichi Open 2023: 29% -> 14%
2025-06-15 163 -> 125 188.64 -> 325.06

13 bloody tiles: 0% -> 100%
2025-06-11 168 -> 163 197.37 -> 188.64

Money can not buy tenpai: 14% -> 0%
2025-05-12 170 -> 168 193.33 -> 197.37

X Russian Championship: 100% -> 86%

Tournaments

# Base rank Date Place Power Coefficient Type 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 86% 3.65 RR Riichi over Volga Samara
4 213 2024-07-14 38/48 86% 2.80 RR Guardian of the Winds Yekaterinburg
5 103 2024-05-12 97/108 71% 4.60 RR X Russian Championship Perm
6 252 2023-09-03 81/108 14% 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