Ryabov Aleksandr

From Moscow, Russia

Player page

Common russian riichi rating (CRR)

Rating date Nov. 6, 2023 (latest changes Nov. 6, 2023).

30 place (528.41).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.80 * 1) = 14.149820000000002

p1 = (594.59 * 4.05 * 0.57 + 436.78 * 3.75 * 1 + 347.83 * 2.80 * 1 + 831.78 * 4 * 1 + 363.64 * 2.10 * 1) / (4.05 * 0.57 + 3.75 * 1 + 2.80 * 1 + 4 * 1 + 2.10 * 1) = 539.8608810244739

p2 = (831.78 * 4 * 1 + 436.78 * 3.75 * 1 + 594.59 * 4.05 * 0.57 + 347.83 * 2.80 * 1) / max_coefficients = 516.9627599503032

score = 539.8608810244739 * 0.5 + 516.9627599503032 * 0.5 = 528.4118204873885

Rating changes

Show

all results
Date Place Points Reason
2023-11-06 32 -> 30 517.89 -> 528.41
2023-11-05 31 -> 32 517.89
2023-10-22 33 -> 31 511.77 -> 517.89

Mushroom League: 0% -> 100%
2023-10-12 31 -> 33 523.15 -> 511.77

Moscow Riichi 2022: 71% -> 57%
2023-09-20 34 -> 31 523.15
2023-09-06 32 -> 34 523.15
2023-09-03 73 -> 32 348.05 -> 523.15

SPB Riichi Open 2023: 0% -> 100%
2023-08-19 75 -> 73 348.05
2023-08-12 72 -> 75 358.88 -> 348.05

Moscow Riichi 2022: 86% -> 71%
2023-07-28 73 -> 72 358.88

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 364 2023-10-22 15/23 100% 2.10 CRR Mushroom League
2 832 2023-09-03 19/108 100% 4.00 RR SPB Riichi Open 2023
3 437 2023-06-11 50/88 100% 3.75 RR Money can not buy tenpai
4 348 2022-12-18 16/24 100% 2.80 CRR Meeting in the billiard room
5 595 2022-06-12 46/112 57% 4.05 RR Moscow Riichi 2022