Tyurkina Karina
From Saint Petersburg, Russia
EMA: 15990500
Common russian riichi rating (CRR)
Rating date Sept. 4, 2025 (latest changes Sept. 3, 2025).
100 place (450.66).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (684.21 * 3.85 * 0.86 + 457.63 * 3.25 * 1 + 1000 * 2 * 1 + 142.86 * 3.45 * 1 + 0) / (3.85 * 0.86 + 3.25 * 1 + 2 * 1 + 3.45 * 1 + 1) = 479.8468595947563
p2 = (684.21 * 3.85 * 0.86 + 1000 * 2 * 1 + 457.63 * 3.25 * 1 + 142.86 * 3.45 * 1) / max_coefficients = 421.48175675675674
score = 479.8468595947563 * 0.5 + 421.48175675675674 * 0.5 = 450.66430817575656
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-03 | 99 -> 100 | 450.66 | |
| 2025-09-01 | 95 -> 99 | 461.65 -> 450.66 |
SPB Riichi Open 2024: 100% -> 86% |
| 2025-08-31 | 81 -> 95 | 477.11 -> 461.65 |
SPB Riichi Open 2025: 0% -> 100% |
| 2025-08-04 | 84 -> 81 | 475.14 -> 477.11 | |
| 2025-08-03 | 83 -> 84 | 475.14 | |
| 2025-07-30 | 84 -> 83 | 475.14 | |
| 2025-07-26 | 83 -> 84 | 475.14 | |
| 2025-07-14 | 82 -> 83 | 475.14 | |
| 2025-07-13 | 81 -> 82 | 475.14 | |
| 2025-07-12 | 84 -> 81 | 471.41 -> 475.14 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 143 |
|
67/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 2 | 1000 |
|
🥇 | 1/19 | 100% | 2.00 | CRR | Tonpu-master | Saint Petersburg |
| 3 | 458 |
|
33/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 4 | 684 |
|
31/96 | 86% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg |