Grishchenko Aleksandra

From Korolyov, Russia

Player page

Internal rating (RR)

Rating date Dec. 21, 2024 (latest changes Dec. 11, 2024).

19 place (656.98).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.75 * 1 + 3.65 * 1) = 15.85

p1 = (326.09 * 2.10 * 1 + 822.43 * 4.60 * 1 + 549.02 * 3.05 * 1 + 547.37 * 3.85 * 1 + 797.75 * 3.75 * 1) / (2.10 * 1 + 4.60 * 1 + 3.05 * 1 + 3.85 * 1 + 3.75 * 1) = 647.9198847262247

p2 = (822.43 * 4.60 * 1 + 797.75 * 3.75 * 1 + 547.37 * 3.85 * 1 + 549.02 * 3.05 * 1) / max_coefficients = 666.0334384858044

score = 647.9198847262247 * 0.5 + 666.0334384858044 * 0.5 = 656.9766616060145

Rating changes

Show

Date Place Points Reason
2024-12-11 21 -> 19 656.98
2024-11-06 22 -> 21 656.98
2024-11-03 23 -> 22 656.98
2024-10-13 40 -> 23 548.17 -> 656.98

Moscow Riichi 2024: 0% -> 100%

2024-10-11 41 -> 40 548.17
2024-09-03 46 -> 41 538.73 -> 548.17
2024-09-01 58 -> 46 462.12 -> 538.73

SPB Riichi Open 2024: 0% -> 100%

2024-08-11 59 -> 58 459.99 -> 462.12
2024-08-04 52 -> 59 468.00 -> 459.99
2024-07-14 49 -> 52 468.00

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 798 2024-10-13 19/90 100% 3.75 RR Moscow Riichi 2024
2 547 2024-09-01 44/96 100% 3.85 RR SPB Riichi Open 2024
3 822 2024-05-12 20/108 100% 4.60 RR X Russian Championship
4 326 2024-03-30 32/47 100% 2.10 RR Seihoku spring tournament 2024
5 549 2024-03-10 24/52 100% 3.05 RR Agari Spring Tournament 2024