Andreeva Anna

From Irkutsk, Russia

Player page

Common russian riichi rating (CRR)

Rating date Sept. 3, 2023 (latest changes Sept. 3, 2023).

178 place (67.51).

max_coefficients = (4.20 * 1 + 4 * 1 + 3.75 * 1 + 4.05 * 0.71) = 14.842915

p1 = (66.67 * 1.20 * 0.43 + 454.55 * 1.10 * 0.86 + 0 + 0 + 0) / (1.20 * 0.43 + 1.10 * 0.86 + 1 + 1 + 1) = 103.84260723829011

p2 = (454.55 * 1.10 * 0.86 + 66.67 * 1.20 * 0.43) / max_coefficients = 31.182554100727522

score = 103.84260723829011 * 0.5 + 31.182554100727522 * 0.5 = 67.51258066950882

Rating changes

Show

all results
Date Place Points Reason
2023-09-03 162 -> 178 68.88 -> 67.51
2023-08-27 157 -> 162 68.88
2023-08-19 156 -> 157 68.88
2023-08-12 156 68.19 -> 68.88
2023-07-09 156 76.68 -> 68.19

Summer tournament: 100% -> 86%
2023-07-05 157 -> 156 76.20 -> 76.68

Winter tournament: 57% -> 43%
2023-07-03 158 -> 157 76.20
2023-06-12 158 75.45 -> 76.20
2023-06-11 140 -> 158 77.15 -> 75.45
2023-05-20 140 76.44 -> 77.15

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 455 2022-07-09 7/12 86% 1.10 CRR Summer tournament
2 67 2022-01-05 15/16 43% 1.20 CRR Winter tournament