Astafev Mikhail

From Yekaterinburg, Russia

Player page

Internal rating (RR)

Rating date Dec. 3, 2024 (latest changes Nov. 6, 2024).

123 place (234.75).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (678.16 * 3.75 * 0.57 + 252.34 * 4 * 0.71 + 102.80 * 4.60 * 1 + 212.77 * 2.80 * 1 + 202.53 * 3.65 * 1) / (3.75 * 0.57 + 4 * 0.71 + 4.60 * 1 + 2.80 * 1 + 3.65 * 1) = 248.09983831725333

p2 = (678.16 * 3.75 * 0.57 + 202.53 * 3.65 * 1 + 252.34 * 4 * 0.71 + 212.77 * 2.80 * 1) / max_coefficients = 221.39369085173502

score = 248.09983831725333 * 0.5 + 221.39369085173502 * 0.5 = 234.74676458449417

Rating changes

Show

Date Place Points Reason
2024-11-06 131 -> 123 234.75
2024-11-03 130 -> 131 239.37 -> 234.75

SPB Riichi Open 2023: 86% -> 71%

2024-10-13 121 -> 130 241.75 -> 239.37
2024-10-11 117 -> 121 260.17 -> 241.75

Money can not buy tenpai: 71% -> 57%

2024-09-06 118 -> 117 260.17
2024-09-03 118 259.91 -> 260.17

SPB Riichi Open 2023: 100% -> 86%

2024-09-01 107 -> 118 266.66 -> 259.91
2024-08-11 104 -> 107 283.07 -> 266.66

Money can not buy tenpai: 86% -> 71%

2024-08-04 101 -> 104 279.56 -> 283.07

Riichi over Volga: 0% -> 100%

2024-07-14 99 -> 101 255.72 -> 279.56

Guardian of the Winds: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 203 2024-08-04 64/80 100% 3.65 RR Riichi over Volga
2 213 2024-07-14 38/48 100% 2.80 RR Guardian of the Winds
3 103 2024-05-12 97/108 100% 4.60 RR X Russian Championship
4 252 2023-09-03 81/108 71% 4.00 RR SPB Riichi Open 2023
5 678 2023-06-11 29/88 57% 3.75 RR Money can not buy tenpai