Astafev Mikhail

From Yekaterinburg, Russia

Player page

Internal rating (RR)

Rating date Jan. 20, 2024 (latest changes Jan. 20, 2024).

68 place (307.49).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 4.05 * 0.43) = 12.485890000000001

p1 = (678.16 * 3.75 * 1 + 252.34 * 4 * 1 + 0 + 0 + 0) / (3.75 * 1 + 4 * 1 + 1 + 1 + 1) = 330.46046511627907

p2 = (678.16 * 3.75 * 1 + 252.34 * 4 * 1) / max_coefficients = 284.5171629735645

score = 330.46046511627907 * 0.5 + 284.5171629735645 * 0.5 = 307.4888140449218

Rating changes

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all results
Date Place Points Reason
2024-01-20 70 -> 68 307.49
2024-01-06 70 300.97 -> 307.49
2023-12-19 73 -> 70 300.97
2023-12-12 75 -> 73 295.22 -> 300.97
2023-12-09 75 295.22

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 252 2023-09-03 81/108 100% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
2 678 2023-06-11 29/88 100% 3.75 RR Money can not buy tenpai Perm