Orlov Boris
From Vsevolozhsk, Russia
Common russian riichi rating (CRR)
Rating date April 26, 2024 (latest changes April 25, 2024).
121 place (228.47).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 3.05 * 1 + 2.90 * 1) = 13.700000000000001
p1 = (900.90 * 4.05 * 0.14 + 461.54 * 1.80 * 0.43 + 327.10 * 4 * 1 + 0 + 0) / (4.05 * 0.14 + 1.80 * 0.43 + 4 * 1 + 1 + 1) = 297.3881751919159
p2 = (327.10 * 4 * 1 + 900.90 * 4.05 * 0.14 + 461.54 * 1.80 * 0.43) / max_coefficients = 159.55255474452557
score = 297.3881751919159 * 0.5 + 159.55255474452557 * 0.5 = 228.47036496822074
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2024-04-25 | 122 -> 121 | 228.47 | |
| 2024-04-12 | 107 -> 122 | 269.50 -> 228.47 |
Moscow Riichi 2022: 29% -> 14% |
| 2024-03-30 | 102 -> 107 | 269.50 | |
| 2024-03-20 | 104 -> 102 | 269.50 | |
| 2024-03-10 | 100 -> 104 | 274.42 -> 269.50 | |
| 2024-03-06 | 105 -> 100 | 269.86 -> 274.42 | |
| 2024-02-27 | 104 -> 105 | 276.09 -> 269.86 |
Sun tournament: 57% -> 43% |
| 2024-02-25 | 101 -> 104 | 276.09 | |
| 2024-02-12 | 93 -> 101 | 313.54 -> 276.09 |
Moscow Riichi 2022: 43% -> 29% |
| 2024-01-20 | 94 -> 93 | 313.54 |
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 | 14% | 4.05 | RR | Moscow Riichi 2022 |