Knyazeva Anna

From Moscow, Russia

Player page

Internal rating (RR)

Rating date Sept. 28, 2023 (latest changes Sept. 28, 2023).

20 place (540.14).

max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915

p1 = (90.09 * 4.05 * 0.71 + 866.67 * 4.20 * 1 + 609.20 * 3.75 * 1 + 523.36 * 4 * 1 + 0) / (4.05 * 0.71 + 4.20 * 1 + 3.75 * 1 + 4 * 1 + 1) = 522.5402017242409

p2 = (866.67 * 4.20 * 1 + 609.20 * 3.75 * 1 + 523.36 * 4 * 1 + 90.09 * 4.05 * 0.71) / max_coefficients = 557.7448904073087

score = 522.5402017242409 * 0.5 + 557.7448904073087 * 0.5 = 540.1425460657748

Rating changes

Show

all results
Date Place Points Reason
2023-09-20 22 -> 20 540.14
2023-09-03 30 -> 22 481.60 -> 540.14

SPB Riichi Open 2023: 0% -> 100%
2023-08-19 31 -> 30 481.60
2023-08-12 33 -> 31 464.73 -> 481.60

Moscow Riichi 2022: 86% -> 71%
2023-07-28 35 -> 33 464.73
2023-07-20 36 -> 35 456.38 -> 464.73
2023-07-06 37 -> 36 456.38
2023-06-19 39 -> 37 456.38
2023-06-12 42 -> 39 441.49 -> 456.38

Moscow Riichi 2022: 100% -> 86%
2023-06-11 58 -> 42 337.91 -> 441.49

Money can not buy tenpai: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 523 2023-09-03 52/108 100% 4.00 RR SPB Riichi Open 2023
2 609 2023-06-11 35/88 100% 3.75 RR Money can not buy tenpai
3 867 2022-11-06 11/76 100% 4.20 RR IX Russian Riichi Championship
4 90 2022-06-12 102/112 71% 4.05 RR Moscow Riichi 2022