Chirkova Lyudmila

From Samara, Russia

Player page

Internal rating (RR)

Rating date April 4, 2025 (latest changes March 30, 2025).

29 place (624.08).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (712.64 * 3.75 * 0.29 + 457.94 * 4 * 0.43 + 439.25 * 4.60 * 1 + 372.55 * 3.05 * 1 + 1000 * 2.80 * 1 + 506.33 * 3.65 * 1 + 736.84 * 3.85 * 1 + 880.95 * 2.60 * 1) / (3.75 * 0.29 + 4 * 0.43 + 4.60 * 1 + 3.05 * 1 + 2.80 * 1 + 3.65 * 1 + 3.85 * 1 + 2.60 * 1) = 620.5433502851308

p2 = (736.84 * 3.85 * 1 + 1000 * 2.80 * 1 + 880.95 * 2.60 * 1 + 439.25 * 4.60 * 1) / max_coefficients = 627.6264984227129

score = 620.5433502851308 * 0.5 + 627.6264984227129 * 0.5 = 624.0849243539219

Rating changes

Show

all results
Date Place Points Reason
2025-03-10 30 -> 29 624.08
2025-03-03 30 622.14 -> 624.08

SPB Riichi Open 2023: 57% -> 43%
2025-02-16 27 -> 30 622.14
2025-02-11 26 -> 27 623.19 -> 622.14

Money can not buy tenpai: 43% -> 29%
2025-02-02 27 -> 26 623.19
2025-01-26 30 -> 27 593.63 -> 623.19

Riichi On Ice: 0% -> 100%
2025-01-07 27 -> 30 593.63
2025-01-03 31 -> 27 591.98 -> 593.63

SPB Riichi Open 2023: 71% -> 57%
2024-12-11 31 593.48 -> 591.98

Money can not buy tenpai: 57% -> 43%
2024-11-06 33 -> 31 589.40 -> 593.48

IX Russian Riichi Championship: 14% -> 0%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 881 2025-01-26 6/43 100% 2.60 RR Riichi On Ice
2 737 2024-09-01 26/96 100% 3.85 RR SPB Riichi Open 2024
3 506 2024-08-04 40/80 100% 3.65 RR Riichi over Volga
4 1000 2024-07-14 1/48 100% 2.80 RR Guardian of the Winds
5 373 2024-06-09 33/52 100% 3.05 RR Agari Summer Tournament 2024
6 439 2024-05-12 61/108 100% 4.60 RR X Russian Championship
7 458 2023-09-03 59/108 43% 4.00 RR SPB Riichi Open 2023
8 713 2023-06-11 26/88 29% 3.75 RR Money can not buy tenpai
9 267 2022-11-06 56/76 0% 4.20 RR IX Russian Riichi Championship