Chirkova Lyudmila

From Samara, Russia

Player page

Internal rating (RR)

Rating date May 3, 2025 (latest changes May 3, 2025).

40 place (617.71).

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

p1 = (712.64 * 3.75 * 0.14 + 457.94 * 4 * 0.29 + 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 + 514.29 * 3.50 * 1) / (3.75 * 0.14 + 4 * 0.29 + 4.60 * 1 + 3.05 * 1 + 2.80 * 1 + 3.65 * 1 + 3.85 * 1 + 2.60 * 1 + 3.50 * 1) = 607.7841163604421

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 = 607.7841163604421 * 0.5 + 627.6264984227129 * 0.5 = 617.7053073915774

Rating changes

Show

all results
Date Place Points Reason
2025-05-03 28 -> 40 623.00 -> 617.71

SPB Riichi Open 2023: 43% -> 29%

Riichi over The Volga 2025: 0% -> 100%
2025-04-11 29 -> 28 624.08 -> 623.00

Money can not buy tenpai: 29% -> 14%
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%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 514 2025-05-03 35/71 100% 3.50 RR Riichi over The Volga 2025 Samara
2 881 2025-01-26 6/43 100% 2.60 RR Riichi On Ice Samara
3 737 2024-09-01 26/96 100% 3.85 RR SPB Riichi Open 2024 Saint Petersburg
4 506 2024-08-04 40/80 100% 3.65 RR Riichi over Volga Samara
5 1000 2024-07-14 1/48 100% 2.80 RR Guardian of the Winds Yekaterinburg
6 373 2024-06-09 33/52 100% 3.05 RR Agari Summer Tournament 2024 Moscow
7 439 2024-05-12 61/108 100% 4.60 RR X Russian Championship Perm
8 458 2023-09-03 59/108 29% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
9 713 2023-06-11 26/88 14% 3.75 RR Money can not buy tenpai Perm
10 267 2022-11-06 56/76 0% 4.20 RR IX Russian Riichi Championship Perm