Dyuzhenkov Ivan
From Moscow, Russia
Internal rating (RR)
Rating date Aug. 23, 2025 (latest changes Aug. 9, 2025).
209 place (47.20).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (96.77 * 3.10 * 1 + 78.43 * 3.05 * 1 + 0 + 0 + 0) / (3.10 * 1 + 3.05 * 1 + 1 + 1 + 1) = 58.93114754098361
p2 = (96.77 * 3.10 * 1 + 78.43 * 3.05 * 1) / max_coefficients = 35.475
score = 58.93114754098361 * 0.5 + 35.475 * 0.5 = 47.203073770491805
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-08-04 | 209 | 47.03 -> 47.20 | |
| 2025-08-03 | 202 -> 209 | 47.03 | |
| 2025-07-13 | 198 -> 202 | 47.03 | |
| 2025-07-12 | 198 | 46.70 -> 47.03 | |
| 2025-07-03 | 200 -> 198 | 46.70 | |
| 2025-06-15 | 187 -> 200 | 47.21 -> 46.70 | |
| 2025-06-11 | 197 -> 187 | 47.21 | |
| 2025-05-12 | 198 -> 197 | 46.48 -> 47.21 | |
| 2025-05-03 | 192 -> 198 | 46.48 | |
| 2025-04-27 | 191 -> 192 | 46.48 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 78 |
|
48/52 | 100% | 3.05 | RR | Agari Winter Tournament 2025 | Moscow | |
| 2 | 97 |
|
29/32 | 100% | 3.10 | RR | Moscow Open Riichi Marathon | Moscow |