Boiko Bogdan

From Kirov, Russia

Player page

Common russian riichi rating (CRR)

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

187 place (135.58).

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

p1 = (214.95 * 4.60 * 1 + 191.49 * 2.80 * 1 + 113.92 * 3.65 * 1 + 0 + 0) / (4.60 * 1 + 2.80 * 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 = 122.44668769716088

score = 148.71877394636016 * 0.5 + 122.44668769716088 * 0.5 = 135.58273082176052

Rating changes

Show

Date Place Points Reason
2024-11-14 189 -> 187 135.58
2024-11-05 191 -> 189 135.58
2024-11-04 187 -> 191 135.58
2024-10-27 186 -> 187 135.58
2024-10-13 171 -> 186 136.85 -> 135.58
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

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