Ryabov Aleksandr

Winner Kawa-league

From Moscow, Russia

Player page

Internal rating (RR)

Rating date July 25, 2026 (latest changes July 18, 2026).

32 place (648.63).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997

p1 = (221.05 * 3.85 * 0.14 + 853.93 * 3.75 * 0.29 + 161.29 * 3.10 * 0.43 + 967.74 * 3 * 1 + 366.67 * 3 * 1 + 660 * 3.10 * 1 + 811.19 * 4.71 * 1) / (3.85 * 0.14 + 3.75 * 0.29 + 3.10 * 0.43 + 3 * 1 + 3 * 1 + 3.10 * 1 + 4.71 * 1) = 663.5201250581736

p2 = (811.19 * 4.71 * 1 + 967.74 * 3 * 1 + 660 * 3.10 * 1 + 366.67 * 3 * 1) / max_coefficients = 633.7395844770585

score = 663.5201250581736 * 0.5 + 633.7395844770585 * 0.5 = 648.629854767616

Rating changes

Show

all results
Date Place Points Reason
2026-07-12 31 -> 32 648.63
2026-07-07 33 -> 31 642.17 -> 648.63

Moscow Open Riichi Marathon: 57% -> 43%
2026-07-03 35 -> 33 642.17
2026-07-01 36 -> 35 635.52 -> 642.17

SPB Riichi Open 2024: 29% -> 14%
2026-06-16 37 -> 36 635.52
2026-06-15 38 -> 37 624.03 -> 635.52
2026-06-14 58 -> 38 521.73 -> 624.03

XII Russian Championship: 0% -> 100%
2026-06-13 56 -> 58 542.65 -> 521.73

Moscow Riichi 2024: 43% -> 29%
2026-05-14 55 -> 56 542.65
2026-05-12 55 550.49 -> 542.65

X Russian Championship: 14% -> 0%

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 43% 3.10 RR Moscow Open Riichi Marathon Moscow
6 854 2024-10-13 14/90 29% 3.75 RR Moscow Riichi 2024 Moscow
7 221 2024-09-01 75/96 14% 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