Ryabov Aleksandr

Winner Kawa-league

From Moscow, Russia

Player page

Internal rating (RR)

Rating date Jan. 6, 2026 (latest changes Jan. 1, 2026).

48 place (551.90).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (352.94 * 3.05 * 0.29 + 925.23 * 4.60 * 0.43 + 221.05 * 3.85 * 0.57 + 853.93 * 3.75 * 0.71 + 161.29 * 3.10 * 1 + 967.74 * 3 * 1) / (3.05 * 0.29 + 4.60 * 0.43 + 3.85 * 0.57 + 3.75 * 0.71 + 3.10 * 1 + 3 * 1) = 601.1369276472963

p2 = (967.74 * 3 * 1 + 853.93 * 3.75 * 0.71 + 925.23 * 4.60 * 0.43 + 161.29 * 3.10 * 1) / max_coefficients = 502.6588628762542

score = 601.1369276472963 * 0.5 + 502.6588628762542 * 0.5 = 551.8978952617753

Rating changes

Show

all results
Date Place Points Reason
2026-01-01 51 -> 48 548.23 -> 551.90

SPB Riichi Open 2024: 71% -> 57%
2025-12-13 46 -> 51 568.33 -> 548.23

Moscow Riichi 2024: 86% -> 71%
2025-12-04 47 -> 46 568.33
2025-11-30 89 -> 47 441.15 -> 568.33

Final Cup 2025: 0% -> 100%
2025-11-12 78 -> 89 472.52 -> 441.15

X Russian Championship: 57% -> 43%
2025-11-10 79 -> 78 469.64 -> 472.52

Agari Spring Tournament 2024: 43% -> 29%
2025-11-04 75 -> 79 479.20 -> 469.64
2025-11-01 78 -> 75 476.62 -> 479.20

SPB Riichi Open 2024: 86% -> 71%
2025-10-13 71 -> 78 491.90 -> 476.62

Moscow Riichi 2024: 100% -> 86%
2025-10-04 73 -> 71 491.90

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 968 2025-11-30 🥈 2/32 100% 3.00 RR Final Cup 2025 Moscow
2 161 2025-01-07 27/32 100% 3.10 RR Moscow Open Riichi Marathon Moscow
3 854 2024-10-13 14/90 71% 3.75 RR Moscow Riichi 2024 Moscow
4 221 2024-09-01 75/96 57% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
5 925 2024-05-12 9/108 43% 4.60 RR X Russian Championship Perm
6 353 2024-03-10 34/52 29% 3.05 RR Agari Spring Tournament 2024 Moscow
7 832 2023-09-03 19/108 0% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
8 437 2023-06-11 50/88 0% 3.75 RR Money can not buy tenpai Perm
9 595 2022-06-12 46/112 0% 4.05 RR Moscow Riichi 2022 Moscow