Parabitov Volfgang
From Russia
Internal rating (RR)
Rating date Aug. 23, 2025 (latest changes Aug. 9, 2025).
156 place (255.99).
how we calculated rating score
max_coefficients = (4.10 * 1 + 3.85 * 1 + 3.75 * 1 + 3.50 * 1) = 15.2
p1 = (224.30 * 4 * 0.14 + 640.45 * 3.75 * 1 + 0 + 0 + 0) / (4 * 0.14 + 3.75 * 1 + 1 + 1 + 1) = 345.5392263986014
p2 = (640.45 * 3.75 * 1 + 224.30 * 4 * 0.14) / max_coefficients = 166.44078947368422
score = 345.5392263986014 * 0.5 + 166.44078947368422 * 0.5 = 255.9900079361428
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2025-08-04 | 156 | 255.18 -> 255.99 | |
2025-08-03 | 150 -> 156 | 255.18 | |
2025-07-30 | 151 -> 150 | 255.18 | |
2025-07-13 | 149 -> 151 | 255.18 | |
2025-07-12 | 152 -> 149 | 253.64 -> 255.18 | |
2025-07-03 | 154 -> 152 | 253.34 -> 253.64 |
SPB Riichi Open 2023: 29% -> 14% |
2025-06-15 | 143 -> 154 | 255.86 -> 253.34 | |
2025-06-11 | 150 -> 143 | 255.86 | |
2025-06-08 | 149 -> 150 | 255.86 | |
2025-05-30 | 151 -> 149 | 255.86 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
---|---|---|---|---|---|---|---|---|---|
1 | 640 |
|
33/90 | 100% | 3.75 | RR | Moscow Riichi 2024 | Moscow | |
2 | 224 |
|
84/108 | 14% | 4.00 | RR | SPB Riichi Open 2023 | Saint Petersburg |