Chirkova Lyudmila

From Samara, Russia

Player page

Internal rating (RR)

Rating date Sept. 6, 2023 (latest changes Sept. 6, 2023).

62 place (391.04).

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

p1 = (266.67 * 4.20 * 1 + 712.64 * 3.75 * 1 + 457.94 * 4 * 1 + 0 + 0) / (4.20 * 1 + 3.75 * 1 + 4 * 1 + 1 + 1) = 403.1677419354839

p2 = (712.64 * 3.75 * 1 + 457.94 * 4 * 1 + 266.67 * 4.20 * 1) / max_coefficients = 378.9141149161064

score = 403.1677419354839 * 0.5 + 378.9141149161064 * 0.5 = 391.0409284257952

Rating changes

Show

all results
Date Place Points Reason
2023-09-06 63 -> 62 391.04
2023-09-03 70 -> 63 320.82 -> 391.04

SPB Riichi Open 2023: 0% -> 100%
2023-08-12 73 -> 70 314.45 -> 320.82
2023-07-28 75 -> 73 314.45
2023-07-20 76 -> 75 309.38 -> 314.45
2023-07-06 77 -> 76 309.38
2023-06-19 79 -> 77 309.38
2023-06-12 79 303.94 -> 309.38
2023-06-11 79 303.94

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

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 458 2023-09-03 59/108 100% 4.00 RR SPB Riichi Open 2023
2 713 2023-06-11 26/88 100% 3.75 RR Money can not buy tenpai
3 267 2022-11-06 56/76 100% 4.20 RR IX Russian Riichi Championship