Ryabov Aleksandr

From Moscow, Russia

Player page

Common russian riichi rating (CRR)

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

19 place (609.92).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 2.90 * 1) = 13.650060000000002

p1 = (347.83 * 2.80 * 0.86 + 363.64 * 2.10 * 1 + 594.59 * 4.05 * 0.29 + 436.78 * 3.75 * 1 + 831.78 * 4 * 1 + 897.44 * 2.90 * 1) / (2.80 * 0.86 + 2.10 * 1 + 4.05 * 0.29 + 3.75 * 1 + 4 * 1 + 2.90 * 1) = 604.2798276687294

p2 = (831.78 * 4 * 1 + 897.44 * 2.90 * 1 + 436.78 * 3.75 * 1 + 347.83 * 2.80 * 0.86) / max_coefficients = 615.5526056295722

score = 604.2798276687294 * 0.5 + 615.5526056295722 * 0.5 = 609.9162166491508

Rating changes

Show

all results
Date Place Points Reason
2024-02-12 15 -> 19 616.98 -> 609.92

Moscow Riichi 2022: 43% -> 29%
2024-01-06 18 -> 15 603.72 -> 616.98
2023-12-19 20 -> 18 603.72
2023-12-18 21 -> 20 600.76 -> 603.72

Meeting in the billiard room: 100% -> 86%
2023-12-12 17 -> 21 612.77 -> 600.76

Moscow Riichi 2022: 57% -> 43%
2023-11-28 19 -> 17 612.77
2023-11-26 29 -> 19 528.41 -> 612.77

Autumn Agari tournament: 0% -> 100%
2023-11-20 30 -> 29 528.41
2023-11-06 32 -> 30 517.89 -> 528.41
2023-11-05 31 -> 32 517.89

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 897 2023-11-26 5/40 100% 2.90 CRR Autumn Agari tournament
2 364 2023-10-22 15/23 100% 2.10 CRR Mushroom League
3 832 2023-09-03 19/108 100% 4.00 RR SPB Riichi Open 2023
4 437 2023-06-11 50/88 100% 3.75 RR Money can not buy tenpai
5 348 2022-12-18 16/24 86% 2.80 CRR Meeting in the billiard room
6 595 2022-06-12 46/112 29% 4.05 RR Moscow Riichi 2022