Boiko Bogdan

From Kirov, Russia

Player page

Common russian riichi rating (CRR)

Rating date April 4, 2026 (latest changes April 4, 2026).

44 place (586.07).

max_coefficients = (4.10 * 1 + 3.90 * 1 + 3.50 * 1 + 3.45 * 1) = 14.95

p1 = (214.95 * 4.60 * 0.14 + 191.49 * 2.80 * 0.29 + 113.92 * 3.65 * 0.29 + 736.84 * 1.50 * 0.71 + 1000 * 3.10 * 0.71 + 925.37 * 4.10 * 1 + 46.51 * 3 * 1 + 666.67 * 2.90 * 1) / (4.60 * 0.14 + 2.80 * 0.29 + 3.65 * 0.29 + 1.50 * 0.71 + 3.10 * 0.71 + 4.10 * 1 + 3 * 1 + 2.90 * 1) = 588.1197031398619

p2 = (925.37 * 4.10 * 1 + 1000 * 3.10 * 0.71 + 666.67 * 2.90 * 1 + 736.84 * 1.50 * 0.71) / max_coefficients = 584.0254180602008

score = 588.1197031398619 * 0.5 + 584.0254180602008 * 0.5 = 586.0725606000314

Rating changes

Show

all results
Date Place Points Reason
2026-04-04 49 -> 44 578.49 -> 586.07

Riichi over Volga: 43% -> 29%
2026-04-02 50 -> 49 578.49
2026-04-01 49 -> 50 578.49
2026-03-14 50 -> 49 573.92 -> 578.49

Guardian of the Winds: 43% -> 29%
2026-03-12 55 -> 50 567.32 -> 573.92

X Russian Championship: 29% -> 14%
2026-03-07 45 -> 55 587.71 -> 567.32

Moscow Open Riichi Marathon: 86% -> 71%
2026-03-04 44 -> 45 594.03 -> 587.71

Dirty Riichi: 86% -> 71%
2026-03-01 45 -> 44 594.03
2026-02-25 46 -> 45 594.03
2026-02-23 43 -> 46 594.03

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 667 2025-12-07 6/16 100% 2.90 CRR Discard League Autumn Season 2025 Kirov
2 47 2025-08-03 42/44 100% 3.00 RR Two roosters and Chuckles Kirov
3 925 2025-06-15 6/68 100% 4.10 RR 13 bloody tiles Perm
4 1000 2025-01-07 🥇 1/32 71% 3.10 RR Moscow Open Riichi Marathon Moscow
5 737 2025-01-04 6/20 71% 1.50 CRR Dirty Riichi Kirov
6 114 2024-08-04 71/80 29% 3.65 RR Riichi over Volga Samara
7 191 2024-07-14 39/48 29% 2.80 RR Guardian of the Winds Yekaterinburg
8 215 2024-05-12 85/108 14% 4.60 RR X Russian Championship Perm