Dyuzhenkov Ivan
From Moscow, Russia
Internal rating (RR)
Rating date Sept. 4, 2025 (latest changes Sept. 3, 2025).
212 place (47.68).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
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 = 36.43378378378378
score = 58.93114754098361 * 0.5 + 36.43378378378378 * 0.5 = 47.68246566238369
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-03 | 217 -> 212 | 47.68 | |
| 2025-09-01 | 217 | 47.20 -> 47.68 | |
| 2025-08-31 | 209 -> 217 | 47.20 | |
| 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 |
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 |