Orlov Boris
From Vsevolozhsk, Russia
Common russian riichi rating (CRR)
Rating date March 6, 2024 (latest changes March 6, 2024).
98 place (274.42).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 2.90 * 1 + 4.20 * 0.57) = 13.04988
p1 = (900.90 * 4.05 * 0.29 + 461.54 * 1.80 * 0.43 + 327.10 * 4 * 1 + 0 + 0) / (4.05 * 0.29 + 1.80 * 0.43 + 4 * 1 + 1 + 1) = 341.41108763061163
p2 = (327.10 * 4 * 1 + 900.90 * 4.05 * 0.29 + 461.54 * 1.80 * 0.43) / max_coefficients = 207.42719473282514
score = 341.41108763061163 * 0.5 + 207.42719473282514 * 0.5 = 274.4191411817184
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-03-06 | 103 -> 98 | 269.86 -> 274.42 | |
| 2024-02-27 | 103 | 276.09 -> 269.86 |
Sun tournament: 57% -> 43% |
| 2024-02-25 | 100 -> 103 | 276.09 | |
| 2024-02-12 | 92 -> 100 | 313.54 -> 276.09 |
Moscow Riichi 2022: 43% -> 29% |
| 2024-01-20 | 93 -> 92 | 313.54 | |
| 2024-01-06 | 95 -> 93 | 308.38 -> 313.54 | |
| 2024-01-05 | 97 -> 95 | 308.38 | |
| 2024-01-03 | 98 -> 97 | 308.38 | |
| 2023-12-27 | 97 -> 98 | 313.68 -> 308.38 |
Sun tournament: 71% -> 57% |
| 2023-12-19 | 99 -> 97 | 313.68 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament |
|---|---|---|---|---|---|---|---|
| 1 | 327 |
|
73/108 | 100% | 4.00 | RR | SPB Riichi Open 2023 |
| 2 | 462 |
|
22/40 | 43% | 1.80 | CRR | Sun tournament |
| 3 | 901 |
|
12/112 | 29% | 4.05 | RR | Moscow Riichi 2022 |