Chirkova Lyudmila
From Samara, Russia
Internal rating (RR)
Rating date Aug. 15, 2025 (latest changes Aug. 9, 2025).
48 place (582.07).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (457.94 * 4 * 0.14 + 439.25 * 4.60 * 0.71 + 372.55 * 3.05 * 0.71 + 1000 * 2.80 * 0.86 + 506.33 * 3.65 * 0.86 + 736.84 * 3.85 * 1 + 880.95 * 2.60 * 1 + 514.29 * 3.50 * 1 + 164.18 * 4.10 * 1) / (4 * 0.14 + 4.60 * 0.71 + 3.05 * 0.71 + 2.80 * 0.86 + 3.65 * 0.86 + 3.85 * 1 + 2.60 * 1 + 3.50 * 1 + 4.10 * 1) = 550.5141856362211
p2 = (736.84 * 3.85 * 1 + 1000 * 2.80 * 0.86 + 880.95 * 2.60 * 1 + 514.29 * 3.50 * 1) / max_coefficients = 613.6315789473686
score = 550.5141856362211 * 0.5 + 613.6315789473686 * 0.5 = 582.0728822917948
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-08-09 | 48 | 580.59 -> 582.07 |
Agari Summer Tournament 2024: 86% -> 71% |
| 2025-08-04 | 48 | 578.75 -> 580.59 |
Riichi over Volga: 100% -> 86% |
| 2025-08-03 | 45 -> 48 | 578.75 | |
| 2025-07-14 | 45 | 595.14 -> 578.75 |
Guardian of the Winds: 100% -> 86% |
| 2025-07-13 | 43 -> 45 | 595.14 | |
| 2025-07-12 | 45 -> 43 | 587.83 -> 595.14 |
X Russian Championship: 86% -> 71% |
| 2025-07-03 | 45 | 586.89 -> 587.83 |
SPB Riichi Open 2023: 29% -> 14% |
| 2025-06-15 | 35 -> 45 | 628.87 -> 586.89 |
13 bloody tiles: 0% -> 100% |
| 2025-06-11 | 34 -> 35 | 629.94 -> 628.87 |
Money can not buy tenpai: 14% -> 0% |
| 2025-06-09 | 36 -> 34 | 627.82 -> 629.94 |
Agari Summer Tournament 2024: 100% -> 86% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 164 |
|
57/68 | 100% | 4.10 | RR | 13 bloody tiles | Perm | |
| 2 | 514 |
|
35/71 | 100% | 3.50 | RR | Riichi over The Volga 2025 | Samara | |
| 3 | 881 |
|
6/43 | 100% | 2.60 | RR | Riichi On Ice | Samara | |
| 4 | 737 |
|
26/96 | 100% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 5 | 506 |
|
40/80 | 86% | 3.65 | RR | Riichi over Volga | Samara | |
| 6 | 1000 |
|
🥇 | 1/48 | 86% | 2.80 | RR | Guardian of the Winds | Yekaterinburg |
| 7 | 373 |
|
33/52 | 71% | 3.05 | RR | Agari Summer Tournament 2024 | Moscow | |
| 8 | 439 |
|
61/108 | 71% | 4.60 | RR | X Russian Championship | Perm | |
| 9 | 458 |
|
59/108 | 14% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 10 | 713 |
|
26/88 | 0% | 3.75 | RR | Money can not buy tenpai | Perm | |
| 11 | 267 |
|
56/76 | 0% | 4.20 | RR | IX Russian Riichi Championship | Perm |