Grishchenko Aleksandra

From Korolyov, Russia

Player page

Internal rating (RR)

Rating date Sept. 3, 2024 (latest changes Sept. 3, 2024).

41 place (548.17).

max_coefficients = (4.60 * 1 + 3.85 * 1 + 3.65 * 1 + 4 * 0.86) = 15.5284

p1 = (326.09 * 2.10 * 1 + 822.43 * 4.60 * 1 + 549.02 * 3.05 * 1 + 547.37 * 3.85 * 1 + 0) / (2.10 * 1 + 4.60 * 1 + 3.05 * 1 + 3.85 * 1 + 1) = 565.0575342465754

p2 = (822.43 * 4.60 * 1 + 547.37 * 3.85 * 1 + 549.02 * 3.05 * 1 + 326.09 * 2.10 * 1) / max_coefficients = 531.2743102959738

score = 565.0575342465754 * 0.5 + 531.2743102959738 * 0.5 = 548.1659222712747

Rating changes

Show

Date Place Points Reason
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
2024-06-11 51 -> 49 460.81 -> 468.00
2024-06-09 48 -> 51 460.81
2024-05-12 80 -> 48 236.19 -> 460.81

X Russian Championship: 0% -> 100%

2024-05-06 84 -> 80 234.11 -> 236.19
2024-04-12 86 -> 84 234.11

Tournaments

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