Ryabov Aleksandr

From Moscow, Russia

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Internal rating (RR)

Rating date Feb. 16, 2025 (latest changes Feb. 16, 2025).

35 place (611.49).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (436.78 * 3.75 * 0.29 + 831.78 * 4 * 0.57 + 352.94 * 3.05 * 1 + 925.23 * 4.60 * 1 + 221.05 * 3.85 * 1 + 853.93 * 3.75 * 1 + 161.29 * 3.10 * 1) / (3.75 * 0.29 + 4 * 0.57 + 3.05 * 1 + 4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.10 * 1) = 564.5609303000533

p2 = (925.23 * 4.60 * 1 + 853.93 * 3.75 * 1 + 831.78 * 4 * 0.57 + 352.94 * 3.05 * 1) / max_coefficients = 658.4164037854889

score = 564.5609303000533 * 0.5 + 658.4164037854889 * 0.5 = 611.4886670427711

Rating changes

Show

all results
Date Place Points Reason
2025-02-16 33 -> 35 611.49
2025-02-11 33 609.95 -> 611.49

Money can not buy tenpai: 43% -> 29%
2025-02-02 31 -> 33 609.95
2025-01-26 26 -> 31 609.95
2025-01-07 22 -> 26 642.35 -> 609.95

Moscow Open Riichi Marathon: 0% -> 100%
2025-01-03 18 -> 22 660.33 -> 642.35

SPB Riichi Open 2023: 71% -> 57%
2024-12-11 20 -> 18 657.75 -> 660.33

Money can not buy tenpai: 57% -> 43%
2024-11-06 21 -> 20 657.75
2024-11-03 19 -> 21 675.54 -> 657.75

SPB Riichi Open 2023: 86% -> 71%
2024-10-13 32 -> 19 585.71 -> 675.54

Moscow Riichi 2024: 0% -> 100%

Tournaments

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