Boiko Bogdan

From Kirov, Russia

Player page

Common russian riichi rating (CRR)

Rating date June 29, 2026 (latest changes June 29, 2026).

69 place (546.89).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 4.10 * 0.86 + 3.45 * 1) = 15.574109999999997

p1 = (191.49 * 2.80 * 0.14 + 113.92 * 3.65 * 0.14 + 736.84 * 1.50 * 0.57 + 1000 * 3.10 * 0.57 + 925.37 * 4.10 * 0.86 + 46.51 * 3 * 1 + 666.67 * 2.90 * 1) / (2.80 * 0.14 + 3.65 * 0.14 + 1.50 * 0.57 + 3.10 * 0.57 + 4.10 * 0.86 + 3 * 1 + 2.90 * 1) = 606.5639714738718

p2 = (925.37 * 4.10 * 0.86 + 666.67 * 2.90 * 1 + 1000 * 3.10 * 0.57 + 736.84 * 1.50 * 0.57) / max_coefficients = 487.2239890433548

score = 606.5639714738718 * 0.5 + 487.2239890433548 * 0.5 = 546.8939802586133

Rating changes

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all results
Date Place Points Reason
2026-06-15 61 -> 69 561.73 -> 546.89

13 bloody tiles: 100% -> 86%
2026-06-14 49 -> 61 583.92 -> 561.73
2026-06-13 50 -> 49 583.92
2026-06-09 51 -> 50 583.92
2026-06-04 52 -> 51 574.54 -> 583.92

Riichi over Volga: 29% -> 14%
2026-06-02 53 -> 52 574.54
2026-05-19 54 -> 53 574.54
2026-05-17 55 -> 54 574.54
2026-05-14 57 -> 55 568.88 -> 574.54

Guardian of the Winds: 29% -> 14%
2026-05-12 59 -> 57 560.72 -> 568.88

X Russian Championship: 14% -> 0%

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 86% 4.10 RR 13 bloody tiles Perm
4 1000 2025-01-07 🥇 1/32 57% 3.10 RR Moscow Open Riichi Marathon Moscow
5 737 2025-01-04 6/20 57% 1.50 CRR Dirty Riichi Kirov
6 114 2024-08-04 71/80 14% 3.65 RR Riichi over Volga Samara
7 191 2024-07-14 39/48 14% 2.80 RR Guardian of the Winds Yekaterinburg
8 215 2024-05-12 85/108 0% 4.60 RR X Russian Championship Perm