Boiko Bogdan

From Kirov, Russia

Player page

Common russian riichi rating (CRR)

Rating date Oct. 11, 2024 (latest changes Oct. 11, 2024).

171 place (136.85).

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

p1 = (191.49 * 2.80 * 1 + 214.95 * 4.60 * 1 + 113.92 * 3.65 * 1 + 0 + 0) / (2.80 * 1 + 4.60 * 1 + 3.65 * 1 + 1 + 1) = 148.71877394636016

p2 = (214.95 * 4.60 * 1 + 191.49 * 2.80 * 1 + 113.92 * 3.65 * 1) / max_coefficients = 124.9826125035419

score = 148.71877394636016 * 0.5 + 124.9826125035419 * 0.5 = 136.85069322495104

Rating changes

Show

Date Place Points Reason
2024-10-11 172 -> 171 136.85
2024-09-15 169 -> 172 136.85
2024-09-06 172 -> 169 136.85
2024-09-03 172 134.63 -> 136.85
2024-09-01 164 -> 172 137.78 -> 134.63
2024-08-27 165 -> 164 137.78
2024-08-26 170 -> 165 137.78
2024-08-25 171 -> 170 137.78
2024-08-20 172 -> 171 137.78
2024-08-11 172 137.11 -> 137.78

Tournaments

# Base rank Date Place Power Coefficient Type Tournament
1 114 2024-08-04 71/80 100% 3.65 RR Riichi over Volga
2 191 2024-07-14 39/48 100% 2.80 RR Guardian of the Winds
3 215 2024-05-12 85/108 100% 4.60 RR X Russian Championship