Chirkova Lyudmila

From Samara, Russia

Player page

Common russian riichi rating (CRR)

Rating date May 12, 2024 (latest changes May 12, 2024).

64 place (458.61).

max_coefficients = (4.60 * 1 + 4 * 1 + 3.75 * 1 + 3.05 * 1) = 15.399999999999999

p1 = (266.67 * 4.20 * 0.43 + 712.64 * 3.75 * 1 + 457.94 * 4 * 1 + 439.25 * 4.60 * 1 + 0) / (4.20 * 0.43 + 3.75 * 1 + 4 * 1 + 4.60 * 1 + 1) = 462.3580539296058

p2 = (712.64 * 3.75 * 1 + 439.25 * 4.60 * 1 + 457.94 * 4 * 1 + 266.67 * 4.20 * 0.43) / max_coefficients = 454.8558441558441

score = 462.3580539296058 * 0.5 + 454.8558441558441 * 0.5 = 458.606949042725

Rating changes

Show

Date Place Points Reason
2024-05-12 69 -> 64 397.67 -> 458.61

X Russian Championship: 0% -> 100%

2024-05-06 70 -> 69 399.44 -> 397.67

IX Russian Riichi Championship: 57% -> 43%

2024-04-12 71 -> 70 399.44
2024-03-30 68 -> 71 399.44
2024-03-20 70 -> 68 399.44
2024-03-10 63 -> 70 408.79 -> 399.44
2024-03-06 65 -> 63 402.30 -> 408.79

IX Russian Riichi Championship: 71% -> 57%

2024-02-12 67 -> 65 402.30
2024-01-20 68 -> 67 402.30
2024-01-06 70 -> 68 396.38 -> 402.30

IX Russian Riichi Championship: 86% -> 71%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 439 2024-05-12 61/108 100% 4.60 RR X Russian Championship
2 458 2023-09-03 59/108 100% 4.00 RR SPB Riichi Open 2023
3 713 2023-06-11 26/88 100% 3.75 RR Money can not buy tenpai
4 267 2022-11-06 56/76 43% 4.20 RR IX Russian Riichi Championship