Astafev Mikhail

From Yekaterinburg, Russia

Player page

Internal rating (RR)

Rating date Nov. 19, 2025 (latest changes Nov. 14, 2025).

116 place (347.43).

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

p1 = (102.80 * 4.60 * 0.43 + 212.77 * 2.80 * 0.57 + 202.53 * 3.65 * 0.71 + 354.84 * 2.40 * 1 + 716.42 * 4.10 * 1) / (4.60 * 0.43 + 2.80 * 0.57 + 3.65 * 0.71 + 2.40 * 1 + 4.10 * 1) = 383.32475593861346

p2 = (716.42 * 4.10 * 1 + 354.84 * 2.40 * 1 + 202.53 * 3.65 * 0.71 + 212.77 * 2.80 * 0.57) / max_coefficients = 311.52976588628763

score = 383.32475593861346 * 0.5 + 311.52976588628763 * 0.5 = 347.42726091245055

Rating changes

Show

all results
Date Place Points Reason
2025-11-14 117 -> 116 347.67 -> 347.43

Guardian of the Winds: 71% -> 57%
2025-11-12 122 -> 117 341.08 -> 347.67

X Russian Championship: 57% -> 43%
2025-11-04 118 -> 122 348.29 -> 341.08
2025-11-01 118 347.72 -> 348.29
2025-10-13 119 -> 118 342.69 -> 347.72
2025-10-04 120 -> 119 343.29 -> 342.69

Riichi over Volga: 86% -> 71%
2025-09-14 120 344.17 -> 343.29

Guardian of the Winds: 86% -> 71%
2025-09-12 124 -> 120 338.75 -> 344.17

X Russian Championship: 71% -> 57%
2025-09-03 128 -> 124 337.10 -> 338.75

SPB Riichi Open 2023: 14% -> 0%
2025-09-01 129 -> 128 332.72 -> 337.10

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 71% 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
6 252 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