Astafev Mikhail

From Yekaterinburg, Russia

Player page

Internal rating (RR)

Rating date June 15, 2025 (latest changes June 15, 2025).

125 place (325.06).

max_coefficients = (4.10 * 1 + 4.60 * 0.86 + 3.85 * 1 + 3.75 * 1) = 15.64266

p1 = (252.34 * 4 * 0.29 + 102.80 * 4.60 * 0.86 + 212.77 * 2.80 * 1 + 202.53 * 3.65 * 1 + 354.84 * 2.40 * 1 + 716.42 * 4.10 * 1) / (4 * 0.29 + 4.60 * 0.86 + 2.80 * 1 + 3.65 * 1 + 2.40 * 1 + 4.10 * 1) = 322.56399337749076

p2 = (716.42 * 4.10 * 1 + 354.84 * 2.40 * 1 + 202.53 * 3.65 * 1 + 212.77 * 2.80 * 1) / max_coefficients = 327.55937928715446

score = 322.56399337749076 * 0.5 + 327.55937928715446 * 0.5 = 325.0616863323226

Rating changes

Show

all results
Date Place Points Reason
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%
2025-05-03 168 -> 170 193.94 -> 193.33

SPB Riichi Open 2023: 43% -> 29%
2025-04-27 167 -> 168 193.94
2025-04-11 162 -> 167 209.50 -> 193.94

Money can not buy tenpai: 29% -> 14%
2025-03-30 163 -> 162 209.50
2025-03-03 163 209.79 -> 209.50

SPB Riichi Open 2023: 57% -> 43%
2025-03-02 165 -> 163 191.20 -> 209.79

Riichi Maslenitsa (shrovetide): 0% -> 100%
2025-02-16 153 -> 165 191.20

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 64/80 100% 3.65 RR Riichi over Volga Samara
4 213 2024-07-14 38/48 100% 2.80 RR Guardian of the Winds Yekaterinburg
5 103 2024-05-12 97/108 86% 4.60 RR X Russian Championship Perm
6 252 2023-09-03 81/108 29% 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