Ryabov Aleksandr

From Moscow, Russia

Player page

Common russian riichi rating (CRR)

Rating date Feb. 27, 2024 (latest changes Feb. 27, 2024).

16 place (610.54).

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

p1 = (347.83 * 2.80 * 0.71 + 594.59 * 4.05 * 0.29 + 436.78 * 3.75 * 1 + 831.78 * 4 * 1 + 897.44 * 2.90 * 1 + 363.64 * 2.10 * 1) / (2.80 * 0.71 + 4.05 * 0.29 + 3.75 * 1 + 4 * 1 + 2.90 * 1 + 2.10 * 1) = 610.7263254673612

p2 = (831.78 * 4 * 1 + 897.44 * 2.90 * 1 + 436.78 * 3.75 * 1 + 363.64 * 2.10 * 1) / max_coefficients = 610.3438373164659

score = 610.7263254673612 * 0.5 + 610.3438373164659 * 0.5 = 610.5350813919135

Rating changes

Show

all results
Date Place Points Reason
2024-02-27 15 -> 16 610.54
2024-02-18 19 -> 15 609.92 -> 610.54

Meeting in the billiard room: 86% -> 71%
2024-02-12 15 -> 19 616.98 -> 609.92

Moscow Riichi 2022: 43% -> 29%
2024-01-06 19 -> 15 603.72 -> 616.98
2023-12-19 21 -> 19 603.72
2023-12-18 22 -> 21 600.76 -> 603.72

Meeting in the billiard room: 100% -> 86%
2023-12-12 18 -> 22 612.77 -> 600.76

Moscow Riichi 2022: 57% -> 43%
2023-11-28 20 -> 18 612.77
2023-11-26 30 -> 20 528.41 -> 612.77

Autumn Agari tournament: 0% -> 100%
2023-11-20 31 -> 30 528.41

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 71% 2.80 CRR Meeting in the billiard room
6 595 2022-06-12 46/112 29% 4.05 RR Moscow Riichi 2022