Astafev Mikhail

From Yekaterinburg, Russia

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Internal rating (RR)

Rating date July 5, 2026 (latest changes July 3, 2026).

138 place (330.43).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997

p1 = (212.77 * 2.80 * 0.14 + 202.53 * 3.65 * 0.14 + 354.84 * 2.40 * 0.57 + 716.42 * 4.10 * 0.86 + 209.79 * 4.71 * 1) / (2.80 * 0.14 + 3.65 * 0.14 + 2.40 * 0.57 + 4.10 * 0.86 + 4.71 * 1) = 397.7360840720061

p2 = (716.42 * 4.10 * 0.86 + 209.79 * 4.71 * 1 + 354.84 * 2.40 * 0.57 + 202.53 * 3.65 * 0.14) / max_coefficients = 263.1245059910326

score = 397.7360840720061 * 0.5 + 263.1245059910326 * 0.5 = 330.43029503151934

Rating changes

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all results
Date Place Points Reason
2026-07-03 139 -> 138 330.43
2026-07-02 136 -> 139 333.66 -> 330.43

Riichi Maslenitsa (shrovetide): 71% -> 57%
2026-07-01 139 -> 136 333.66
2026-06-16 142 -> 139 333.66
2026-06-15 132 -> 142 349.93 -> 333.66

13 bloody tiles: 100% -> 86%
2026-06-14 103 -> 132 367.30 -> 349.93

XII Russian Championship: 0% -> 100%
2026-06-09 105 -> 103 367.30
2026-06-04 108 -> 105 362.00 -> 367.30

Riichi over Volga: 29% -> 14%
2026-06-02 109 -> 108 362.00
2026-05-26 110 -> 109 362.00

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 210 2026-06-14 114/144 100% 4.71 RR XII Russian Championship Samara
2 716 2025-06-15 20/68 86% 4.10 RR 13 bloody tiles Perm
3 355 2025-03-02 21/32 57% 2.40 RR Riichi Maslenitsa (shrovetide) Yekaterinburg
4 203 2024-08-04 64/80 14% 3.65 RR Riichi over Volga Samara
5 213 2024-07-14 38/48 14% 2.80 RR Guardian of the Winds Yekaterinburg
6 103 2024-05-12 97/108 0% 4.60 RR X Russian Championship Perm
7 252 2023-09-03 81/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
8 678 2023-06-11 29/88 0% 3.75 RR Money can not buy tenpai Perm