Karabanova Olesya
From Moscow, Russia
Internal rating (RR)
Rating date Sept. 6, 2025 (latest changes Sept. 3, 2025).
146 place (289.49).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.75 * 1 + 3.50 * 1 + 3.45 * 1) = 14.8
p1 = (695.65 * 2.10 * 0.57 + 326.32 * 3.85 * 0.86 + 203.39 * 3.25 * 1 + 376.62 * 3.45 * 1 + 0) / (2.10 * 0.57 + 3.85 * 0.86 + 3.25 * 1 + 3.45 * 1 + 1) = 317.37470568104743
p2 = (376.62 * 3.45 * 1 + 326.32 * 3.85 * 0.86 + 695.65 * 2.10 * 0.57 + 203.39 * 3.25 * 1) / max_coefficients = 261.61486486486484
score = 317.37470568104743 * 0.5 + 261.61486486486484 * 0.5 = 289.49478527295616
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2025-09-03 | 137 -> 146 | 311.38 -> 289.49 |
SPB Riichi Open 2023: 14% -> 0% |
| 2025-09-01 | 136 -> 137 | 313.07 -> 311.38 |
SPB Riichi Open 2024: 100% -> 86% |
| 2025-08-31 | 154 -> 136 | 261.61 -> 313.07 |
SPB Riichi Open 2025: 0% -> 100% |
| 2025-08-04 | 154 | 260.60 -> 261.61 | |
| 2025-08-03 | 147 -> 154 | 260.60 | |
| 2025-07-30 | 144 -> 147 | 272.99 -> 260.60 |
Seihoku spring tournament 2024: 71% -> 57% |
| 2025-07-14 | 145 -> 144 | 272.99 | |
| 2025-07-13 | 142 -> 145 | 272.99 | |
| 2025-07-12 | 142 | 270.95 -> 272.99 | |
| 2025-07-03 | 134 -> 142 | 291.98 -> 270.95 |
SPB Riichi Open 2023: 29% -> 14% |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | 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 | 86% | 3.85 | RR | SPB Riichi Open 2024 | Saint Petersburg | |
| 4 | 696 |
|
15/47 | 57% | 2.10 | RR | Seihoku spring tournament 2024 | Saint Petersburg | |
| 5 | 664 |
|
37/108 | 0% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg | |
| 6 | 660 |
|
17/48 | 0% | 3.10 | RR | Agari team tournament | Moscow | |
| 7 | 187 |
|
62/76 | 0% | 3.45 | RR | Saint Petersburg Open 2021 | Saint Petersburg |