Boiko Bogdan

From Kirov, Russia

Player page

Common russian riichi rating (CRR)

Rating date Jan. 4, 2025 (latest changes Jan. 4, 2025).

170 place (208.49).

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 + 736.84 * 1.50 * 1 + 0) / (4.60 * 1 + 2.80 * 1 + 3.65 * 1 + 1.50 * 1 + 1) = 224.8

p2 = (736.84 * 1.50 * 1 + 214.95 * 4.60 * 1 + 191.49 * 2.80 * 1 + 113.92 * 3.65 * 1) / max_coefficients = 192.17917981072557

score = 224.8 * 0.5 + 192.17917981072557 * 0.5 = 208.48958990536278

Rating changes

Show

all results
Date Place Points Reason
2025-01-04 188 -> 170 135.58 -> 208.49

Dirty Riichi: 0% -> 100%
2025-01-03 189 -> 188 135.58
2024-12-29 188 -> 189 135.58
2024-11-14 190 -> 188 135.58
2024-11-05 192 -> 190 135.58
2024-11-04 188 -> 192 135.58
2024-10-27 187 -> 188 135.58
2024-10-13 172 -> 187 136.85 -> 135.58
2024-10-11 173 -> 172 136.85
2024-09-15 170 -> 173 136.85

Tournaments

# Base rank Date Place Power Coefficient Type Tournament City
1 737 2025-01-04 6/20 100% 1.50 CRR Dirty Riichi Kirov
2 114 2024-08-04 71/80 100% 3.65 RR Riichi over Volga Samara
3 191 2024-07-14 39/48 100% 2.80 RR Guardian of the Winds Yekaterinburg
4 215 2024-05-12 85/108 100% 4.60 RR X Russian Championship Perm