Orlov Boris
From Vsevolozhsk, Russia
Common russian riichi rating (CRR)
Rating date Sept. 5, 2023 (latest changes Sept. 5, 2023).
81 place (377.53).
how we calculated rating score
max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915
p1 = (900.90 * 4.05 * 0.71 + 461.54 * 1.80 * 0.86 + 327.10 * 4 * 1 + 0 + 0) / (4.05 * 0.71 + 1.80 * 0.86 + 4 * 1 + 1 + 1) = 443.35235937807687
p2 = (900.90 * 4.05 * 0.71 + 327.10 * 4 * 1 + 461.54 * 1.80 * 0.86) / max_coefficients = 311.71033452660754
score = 443.35235937807687 * 0.5 + 311.71033452660754 * 0.5 = 377.53134695234223
Rating changes
Date | Place | Points | Reason |
---|---|---|---|
2023-09-05 | 82 -> 81 | 377.53 | |
2023-09-03 | 75 -> 82 | 344.74 -> 377.53 |
SPB Riichi Open 2023: 0% -> 100% |
2023-08-27 | 71 -> 75 | 349.35 -> 344.74 |
Sun tournament: 100% -> 86% |
2023-08-19 | 73 -> 71 | 349.35 | |
2023-08-12 | 65 -> 73 | 378.42 -> 349.35 |
Moscow Riichi 2022: 86% -> 71% |
2023-07-28 | 66 -> 65 | 378.42 | |
2023-07-20 | 65 -> 66 | 378.42 | |
2023-07-06 | 64 -> 65 | 378.42 | |
2023-07-03 | 66 -> 64 | 378.42 | |
2023-06-19 | 70 -> 66 | 378.42 |
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 | 86% | 1.80 | CRR | Sun tournament |
3 | 901 |
|
12/112 | 71% | 4.05 | RR | Moscow Riichi 2022 |