Orlov Boris

From Vsevolozhsk, Russia

Player page

Internal rating (RR)

Rating date Feb. 12, 2024 (latest changes Feb. 12, 2024).

79 place (242.81).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.71 + 4.05 * 0.29) = 11.907145000000002

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 = 197.43019842287967

score = 288.1948637288933 * 0.5 + 197.43019842287967 * 0.5 = 242.8125310758865

Rating changes

Show

all results
Date Place Points Reason
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 84 -> 81 301.10 -> 306.32
2023-10-20 85 -> 84 301.10
2023-10-19 84 -> 85 301.10

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 327 2023-09-03 73/108 100% 4.00 RR SPB Riichi Open 2023 Saint Petersburg
2 901 2022-06-12 12/112 29% 4.05 RR Moscow Riichi 2022 Moscow