Novikov Anton
From Saint Petersburg, Russia
EMA: 15990255
Internal rating (RR)
Rating date Sept. 3, 2025 (latest changes Sept. 3, 2025).
15 place (734.10).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (760.87 * 2.10 * 0.57 + 600 * 3.85 * 0.86 + 983.05 * 3.25 * 1 + 1000 * 1.90 * 1 + 766.23 * 3.45 * 1) / (2.10 * 0.57 + 3.85 * 0.86 + 3.25 * 1 + 1.90 * 1 + 3.45 * 1) = 811.5658475050143
p2 = (983.05 * 3.25 * 1 + 766.23 * 3.45 * 1 + 600 * 3.85 * 0.86 + 1000 * 1.90 * 1) / max_coefficients = 656.6439189189189
score = 811.5658475050143 * 0.5 + 656.6439189189189 * 0.5 = 734.1048832119666
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-03 | 14 -> 15 | 736.48 -> 734.10 |
SPB Riichi Open 2023: 14% -> 0% |
| 2025-09-01 | 14 | 734.52 -> 736.48 |
SPB Riichi Open 2024: 100% -> 86% |
| 2025-08-31 | 21 -> 14 | 684.27 -> 734.52 |
SPB Riichi Open 2025: 0% -> 100% |
| 2025-08-04 | 23 -> 21 | 681.60 -> 684.27 | |
| 2025-08-03 | 22 -> 23 | 681.60 | |
| 2025-07-30 | 20 -> 22 | 688.22 -> 681.60 |
Seihoku spring tournament 2024: 71% -> 57% |
| 2025-07-14 | 21 -> 20 | 688.22 | |
| 2025-07-12 | 23 -> 21 | 683.01 -> 688.22 | |
| 2025-07-03 | 23 | 685.60 -> 683.01 |
SPB Riichi Open 2023: 29% -> 14% |
| 2025-06-15 | 19 -> 23 | 693.69 -> 685.60 |