Ryabov Aleksandr

Winner Kawa-league

From Moscow, Russia

Player page

Internal rating (RR)

Rating date Oct. 14, 2026 (latest changes Oct. 13, 2026).

29 place (660.92).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41

p1 = (161.29 * 3.10 * 0.29 + 967.74 * 3 * 1 + 366.67 * 3 * 1 + 660 * 3.10 * 1 + 811.19 * 4.71 * 1) / (3.10 * 0.29 + 3 * 1 + 3 * 1 + 3.10 * 1 + 4.71 * 1) = 681.3421912713064

p2 = (811.19 * 4.71 * 1 + 967.74 * 3 * 1 + 660 * 3.10 * 1 + 366.67 * 3 * 1) / max_coefficients = 640.4886437378326

score = 681.3421912713064 * 0.5 + 640.4886437378326 * 0.5 = 660.9154175045695

Rating changes

Show

all results
Date Place Points Reason
2026-10-13 30 -> 29 663.95 -> 660.92

Moscow Riichi 2024: 14% -> 0%
2026-09-07 31 -> 30 656.52 -> 663.95

Moscow Open Riichi Marathon: 43% -> 29%
2026-09-06 30 -> 31 656.52
2026-09-03 31 -> 30 656.52
2026-09-02 30 -> 31 656.52
2026-09-01 33 -> 30 648.86 -> 656.52

SPB Riichi Open 2024: 14% -> 0%
2026-08-31 35 -> 33 647.83 -> 648.86
2026-08-16 32 -> 35 647.83
2026-08-15 32 645.49 -> 647.83
2026-08-13 30 -> 32 648.63 -> 645.49

Moscow Riichi 2024: 29% -> 14%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 811 2026-06-14 28/144 100% 4.71 RR XII Russian Championship Samara
2 660 2026-04-05 18/51 100% 3.10 RR Moscow Riichi 2026 Moscow
3 367 2026-01-07 20/31 100% 3.00 RR Moscow Open Riichi Marathon 2026 Moscow
4 968 2025-11-30 🥈 2/32 100% 3.00 RR Final Cup 2025 Moscow
5 161 2025-01-07 27/32 29% 3.10 RR Moscow Open Riichi Marathon Moscow
6 854 2024-10-13 14/90 0% 3.75 RR Moscow Riichi 2024 Moscow
7 221 2024-09-01 75/96 0% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
8 925 2024-05-12 9/108 0% 4.60 RR X Russian Championship Perm
9 353 2024-03-10 34/52 0% 3.05 RR Agari Spring Tournament 2024 Moscow
10 832 2023-09-03 19/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
11 437 2023-06-11 50/88 0% 3.75 RR Money can not buy tenpai Perm
12 595 2022-06-12 46/112 0% 4.05 RR Moscow Riichi 2022 Moscow