Ryabov Aleksandr

From Moscow, Russia

Player page

Internal rating (RR)

Rating date Jan. 6, 2024 (latest changes Jan. 6, 2024).

25 place (501.22).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 4.05 * 0.43) = 12.485890000000001

p1 = (594.59 * 4.05 * 0.43 + 436.78 * 3.75 * 1 + 831.78 * 4 * 1 + 0 + 0) / (4.05 * 0.43 + 3.75 * 1 + 4 * 1 + 1 + 1) = 522.1346650612102

p2 = (831.78 * 4 * 1 + 436.78 * 3.75 * 1 + 594.59 * 4.05 * 0.43) / max_coefficients = 480.3141786448542

score = 522.1346650612102 * 0.5 + 480.3141786448542 * 0.5 = 501.2244218530322

Rating changes

Show

all results
Date Place Points Reason
2024-01-06 28 -> 25 490.22 -> 501.22
2023-12-19 29 -> 28 490.22
2023-12-12 27 -> 29 494.84 -> 490.22

Moscow Riichi 2022: 57% -> 43%
2023-11-28 28 -> 27 494.84
2023-11-20 29 -> 28 494.84
2023-11-06 33 -> 29 485.07 -> 494.84
2023-10-12 30 -> 33 489.58 -> 485.07

Moscow Riichi 2022: 71% -> 57%
2023-09-20 32 -> 30 489.58
2023-09-03 74 -> 32 304.86 -> 489.58

SPB Riichi Open 2023: 0% -> 100%
2023-08-19 75 -> 74 304.86

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 832 2023-09-03 19/108 100% 4.00 RR SPB Riichi Open 2023
2 437 2023-06-11 50/88 100% 3.75 RR Money can not buy tenpai
3 595 2022-06-12 46/112 43% 4.05 RR Moscow Riichi 2022