Astafev Mikhail

From Yekaterinburg, Russia

Player page

Internal rating (RR)

Rating date June 12, 2024 (latest changes June 12, 2024).

99 place (255.72).

max_coefficients = (4.60 * 1 + 4 * 1 + 3.75 * 0.86 + 3.05 * 1) = 14.864125000000001

p1 = (678.16 * 3.75 * 0.86 + 252.34 * 4 * 1 + 102.80 * 4.60 * 1 + 0 + 0) / (3.75 * 0.86 + 4 * 1 + 4.60 * 1 + 1 + 1) = 265.0866413906056

p2 = (678.16 * 3.75 * 0.86 + 252.34 * 4 * 1 + 102.80 * 4.60 * 1) / max_coefficients = 246.3609529656135

score = 265.0866413906056 * 0.5 + 246.3609529656135 * 0.5 = 255.72379717810958

Rating changes

Show

Date Place Points Reason
2024-06-11 102 -> 99 270.95 -> 255.72

Money can not buy tenpai: 100% -> 86%

2024-06-09 92 -> 102 270.95
2024-05-12 68 -> 92 302.92 -> 270.95

X Russian Championship: 0% -> 100%

2024-05-06 69 -> 68 299.79 -> 302.92
2024-04-12 71 -> 69 299.79
2024-03-30 66 -> 71 299.79
2024-03-20 73 -> 66 299.79
2024-03-10 61 -> 73 322.32 -> 299.79
2024-03-06 65 -> 61 314.40 -> 322.32
2024-02-12 68 -> 65 307.49 -> 314.40

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 103 2024-05-12 97/108 100% 4.60 RR X Russian Championship
2 252 2023-09-03 81/108 100% 4.00 RR SPB Riichi Open 2023
3 678 2023-06-11 29/88 86% 3.75 RR Money can not buy tenpai