Chirkova Lyudmila

From Samara, Russia

Player page

Internal rating (RR)

Rating date Oct. 12, 2023 (latest changes Oct. 12, 2023).

57 place (398.73).

max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.57) = 14.26417

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 = 394.2879256206284

score = 403.1677419354839 * 0.5 + 394.2879256206284 * 0.5 = 398.72783377805615

Rating changes

Show

all results
Date Place Points Reason
2023-10-12 57 391.04 -> 398.73
2023-09-28 59 -> 57 391.04
2023-09-20 62 -> 59 391.04
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

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