Dobrynina Irina
From Irkutsk, Russia
Common russian riichi rating (CRR)
Rating date Jan. 3, 2025 (latest changes Jan. 3, 2025).
196 place (112.91).
how we calculated rating score
max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85
p1 = (1000 * 1.10 * 0.14 + 200 * 1 * 0.29 + 454.55 * 0.90 * 1 + 0 + 0) / (1.10 * 0.14 + 1 * 0.29 + 0.90 * 1 + 1 + 1) = 186.4913293587285
p2 = (454.55 * 0.90 * 1 + 1000 * 1.10 * 0.14 + 200 * 1 * 0.29) / max_coefficients = 39.33249211356467
score = 186.4913293587285 * 0.5 + 39.33249211356467 * 0.5 = 112.91191073614658
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-01-01 | 196 | 114.09 -> 112.91 |
Spring Tournament Irkutsk 2023: 43% -> 29% |
| 2024-12-29 | 195 -> 196 | 114.09 | |
| 2024-11-14 | 187 -> 195 | 136.57 -> 114.09 |
Survive after yakuman: 29% -> 14% |
| 2024-11-05 | 189 -> 187 | 136.57 | |
| 2024-11-04 | 214 -> 189 | 66.05 -> 136.57 |
Irkutsk autumn tournament 2024: 0% -> 100% |
| 2024-11-01 | 213 -> 214 | 68.66 -> 66.05 |
Spring Tournament Irkutsk 2023: 57% -> 43% |
| 2024-10-27 | 212 -> 213 | 68.66 | |
| 2024-10-22 | 213 -> 212 | 68.66 | |
| 2024-10-13 | 199 -> 213 | 68.94 -> 68.66 | |
| 2024-09-15 | 194 -> 199 | 68.94 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 455 |
|
7/12 | 100% | 0.90 | CRR | Irkutsk autumn tournament 2024 |
| 2 | 200 |
|
13/16 | 29% | 1.00 | CRR | Spring Tournament Irkutsk 2023 |
| 3 | 1000 |
|
1/12 | 14% | 1.10 | CRR | Survive after yakuman |
| 4 | 818 |
|
3/12 | 0% | 1.10 | CRR | Summer tournament |
| 5 | 600 |
|
7/16 | 0% | 1.20 | CRR | Winter tournament |
| 6 | 818 |
|
3/12 | 0% | 1.10 | CRR | Summer tournament |
| 7 | 867 |
|
3/16 | 0% | 1.20 | CRR | Winter tournament |
| 8 | 91 |
|
11/12 | 0% | 1.10 | CRR | Spring Tournament |
| 9 | 909 |
|
2/12 | 0% | 1.10 | CRR | Irkutsk Winter Tournament |
| 10 | 818 |
|
3/12 | 0% | 1.10 | CRR | Summer Tournament |