Karabanova Olesya
From Saint Petersburg, Russia
Common russian riichi rating (CRR)
Rating date Dec. 10, 2025 (latest changes Dec. 9, 2025).
196 place (257.73).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95
p1 = (695.65 * 2.10 * 0.29 + 326.32 * 3.85 * 0.71 + 203.39 * 3.25 * 1 + 376.62 * 3.45 * 1 + 0) / (2.10 * 0.29 + 3.85 * 0.71 + 3.25 * 1 + 3.45 * 1 + 1) = 296.39118463532884
p2 = (376.62 * 3.45 * 1 + 326.32 * 3.85 * 0.71 + 203.39 * 3.25 * 1 + 695.65 * 2.10 * 0.29) / max_coefficients = 219.07224080267557
score = 296.39118463532884 * 0.5 + 219.07224080267557 * 0.5 = 257.7317127190022
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-12-07 | 191 -> 196 | 257.73 | |
| 2025-12-06 | 187 -> 191 | 257.73 | |
| 2025-11-30 | 179 -> 187 | 269.99 -> 257.73 |
Seihoku spring tournament 2024: 43% -> 29% |
| 2025-11-25 | 181 -> 179 | 269.99 | |
| 2025-11-22 | 179 -> 181 | 269.99 | |
| 2025-11-15 | 180 -> 179 | 269.99 | |
| 2025-11-12 | 179 -> 180 | 269.99 | |
| 2025-11-10 | 180 -> 179 | 269.99 | |
| 2025-11-05 | 182 -> 180 | 269.99 | |
| 2025-11-04 | 176 -> 182 | 275.29 -> 269.99 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Rating | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 377 |
|
49/78 | 100% | 3.45 | RR | SPB Riichi Open 2025 | Saint Petersburg | |
| 2 | 203 |
|
48/60 | 100% | 3.25 | RR | White Wolf Cup | Saint Petersburg | |
| 3 | 326 |
|
65/96 | 71% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 4 | 696 |
|
15/47 | 29% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 5 | 664 |
|
37/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 6 | 452 |
|
18/32 | 0% | 1.80 | CRR | Earth cup | Saint Petersburg | |
| 7 | 77 |
|
37/40 | 0% | 1.80 | CRR | Sun tournament | Saint Petersburg | |
| 8 | 660 |
|
17/48 | 0% | 3.10 | RR | Agari team tournament | Moscow | |
| 9 | 187 |
|
62/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 | Saint Petersburg |