Orlov Boris

From Vsevolozhsk, Russia

Player page

Internal rating (RR)

Rating date Dec. 12, 2023 (latest changes Dec. 12, 2023).

81 place (274.14).

max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 4.05 * 0.43) = 13.085650000000001

p1 = (900.90 * 4.05 * 0.43 + 327.10 * 4 * 1 + 0 + 0 + 0) / (4.05 * 0.43 + 4 * 1 + 1 + 1 + 1) = 328.7861599870877

p2 = (900.90 * 4.05 * 0.43 + 327.10 * 4 * 1) / max_coefficients = 219.49387305942005

score = 328.7861599870877 * 0.5 + 219.49387305942005 * 0.5 = 274.14001652325385

Rating changes

Show

all results
Date Place Points Reason
2023-12-12 73 -> 81 306.32 -> 274.14

Moscow Riichi 2022: 57% -> 43%
2023-11-28 81 -> 73 306.32
2023-11-20 82 -> 81 306.32
2023-11-06 86 -> 82 301.10 -> 306.32
2023-10-12 81 -> 86 329.72 -> 301.10

Moscow Riichi 2022: 71% -> 57%
2023-09-20 82 -> 81 329.72
2023-09-06 83 -> 82 329.72
2023-09-03 83 329.72

SPB Riichi Open 2023: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 327 2023-09-03 73/108 100% 4.00 RR SPB Riichi Open 2023
2 901 2022-06-12 12/112 43% 4.05 RR Moscow Riichi 2022