Orlov Boris
From Vsevolozhsk, Russia
Internal rating (RR)
Rating date March 10, 2024 (latest changes March 10, 2024).
86 place (233.14).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 4.20 * 0.57) = 13.19988
p1 = (900.90 * 4.05 * 0.29 + 327.10 * 4 * 1 + 0 + 0 + 0) / (4.05 * 0.29 + 4 * 1 + 1 + 1 + 1) = 288.1948637288933
p2 = (327.10 * 4 * 1 + 900.90 * 4.05 * 0.29) / max_coefficients = 178.094800861826
score = 288.1948637288933 * 0.5 + 178.094800861826 * 0.5 = 233.14483229535966
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2024-03-10 | 77 -> 86 | 248.05 -> 233.14 | |
2024-03-06 | 79 -> 77 | 242.81 -> 248.05 | |
2024-02-12 | 73 -> 79 | 279.41 -> 242.81 |
Moscow Riichi 2022: 43% -> 29% |
2024-01-20 | 74 -> 73 | 279.41 | |
2024-01-06 | 77 -> 74 | 274.14 -> 279.41 | |
2023-12-19 | 80 -> 77 | 274.14 | |
2023-12-12 | 72 -> 80 | 306.32 -> 274.14 |
Moscow Riichi 2022: 57% -> 43% |
2023-11-28 | 80 -> 72 | 306.32 | |
2023-11-20 | 81 -> 80 | 306.32 | |
2023-11-06 | 85 -> 81 | 301.10 -> 306.32 |
Tournaments
# | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
---|---|---|---|---|---|---|---|
1 | 327 |
|
73/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
2 | 901 |
|
12/112 | 29% | 4.05 | RR | Moscow Riichi 2022 |