Pogosyan Tamara
From Saint Petersburg, Russia
EMA: 15990121
Common russian riichi rating (CRR)
Rating date Aug. 31, 2025 (latest changes Aug. 31, 2025).
70 place (533.12).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (217.39 * 2.10 * 0.57 + 949.15 * 3.25 * 1 + 883.12 * 3.45 * 1 + 0 + 0) / (2.10 * 0.57 + 3.25 * 1 + 3.45 * 1 + 1 + 1) = 645.6968426071269
p2 = (949.15 * 3.25 * 1 + 883.12 * 3.45 * 1 + 217.39 * 2.10 * 0.57) / max_coefficients = 420.55
score = 645.6968426071269 * 0.5 + 420.55 * 0.5 = 533.1234213035634
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-08-31 | 145 -> 70 | 334.59 -> 533.12 |
SPB Riichi Open 2025: 0% -> 100% |
| 2025-08-26 | 146 -> 145 | 334.59 | |
| 2025-08-04 | 146 | 333.52 -> 334.59 | |
| 2025-08-03 | 144 -> 146 | 333.52 | |
| 2025-07-30 | 145 -> 144 | 331.16 -> 333.52 |
Seihoku spring tournament 2024: 71% -> 57% |
| 2025-07-13 | 142 -> 145 | 331.16 | |
| 2025-07-12 | 142 | 329.08 -> 331.16 | |
| 2025-07-10 | 144 -> 142 | 329.08 | |
| 2025-06-26 | 145 -> 144 | 329.08 | |
| 2025-06-15 | 142 -> 145 | 332.31 -> 329.08 |