Ryabov Aleksandr

From Moscow, Russia

Player page

Internal rating (RR)

Rating date Nov. 20, 2023 (latest changes Nov. 20, 2023).

27 place (494.84).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 4.05 * 0.57) = 13.663990000000002

p1 = (594.59 * 4.05 * 0.57 + 436.78 * 3.75 * 1 + 831.78 * 4 * 1 + 0 + 0) / (4.05 * 0.57 + 3.75 * 1 + 4 * 1 + 1 + 1) = 525.6076464439742

p2 = (831.78 * 4 * 1 + 436.78 * 3.75 * 1 + 594.59 * 4.05 * 0.57) / max_coefficients = 464.0679625790123

score = 525.6076464439742 * 0.5 + 464.0679625790123 * 0.5 = 494.83780451149323

Rating changes

Show

all results
Date Place Points Reason
2023-11-20 28 -> 27 494.84
2023-11-06 32 -> 28 485.07 -> 494.84
2023-10-12 29 -> 32 489.58 -> 485.07

Moscow Riichi 2022: 71% -> 57%
2023-09-20 31 -> 29 489.58
2023-09-03 73 -> 31 304.86 -> 489.58

SPB Riichi Open 2023: 0% -> 100%
2023-08-19 74 -> 73 304.86
2023-08-12 69 -> 74 319.00 -> 304.86

Moscow Riichi 2022: 86% -> 71%
2023-07-28 72 -> 69 319.00
2023-07-20 72 314.05 -> 319.00
2023-07-06 74 -> 72 314.05

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 57% 4.05 RR Moscow Riichi 2022