Pogosyan Tamara
From Saint Petersburg, Russia
EMA: 15990121
Internal rating (RR)
Rating date Nov. 4, 2025 (latest changes Nov. 4, 2025).
19 place (695.85).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (217.39 * 2.10 * 0.43 + 949.15 * 3.25 * 1 + 883.12 * 3.45 * 1 + 807.02 * 3.90 * 1 + 0) / (2.10 * 0.43 + 3.25 * 1 + 3.45 * 1 + 3.90 * 1 + 1) = 757.9595617941035
p2 = (807.02 * 3.90 * 1 + 949.15 * 3.25 * 1 + 883.12 * 3.45 * 1 + 217.39 * 2.10 * 0.43) / max_coefficients = 633.7484949832775
score = 757.9595617941035 * 0.5 + 633.7484949832775 * 0.5 = 695.8540283886905
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-11-04 | 55 -> 19 | 550.77 -> 695.85 |
XI Russian Championship: 0% -> 100% |
| 2025-11-01 | 55 | 550.00 -> 550.77 | |
| 2025-10-13 | 57 -> 55 | 543.29 -> 550.00 | |
| 2025-10-09 | 58 -> 57 | 543.29 | |
| 2025-10-04 | 57 -> 58 | 543.29 | |
| 2025-09-30 | 58 -> 57 | 538.81 -> 543.29 |
Seihoku spring tournament 2024: 57% -> 43% |
| 2025-09-10 | 59 -> 58 | 538.81 | |
| 2025-09-03 | 60 -> 59 | 538.81 | |
| 2025-09-01 | 61 -> 60 | 533.12 -> 538.81 | |
| 2025-08-31 | 128 -> 61 | 334.59 -> 533.12 |
SPB Riichi Open 2025: 0% -> 100% |