Boiko Bogdan

From Kirov, Russia

Player page

Common russian riichi rating (CRR)

Rating date July 21, 2026 (latest changes July 18, 2026).

75 place (526.10).

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

p1 = (113.92 * 3.65 * 0.14 + 736.84 * 1.50 * 0.43 + 1000 * 3.10 * 0.43 + 925.37 * 4.10 * 0.86 + 46.51 * 3 * 1 + 666.67 * 2.90 * 1) / (3.65 * 0.14 + 1.50 * 0.43 + 3.10 * 0.43 + 4.10 * 0.86 + 3 * 1 + 2.90 * 1) = 603.5412863838054

p2 = (925.37 * 4.10 * 0.86 + 666.67 * 2.90 * 1 + 1000 * 3.10 * 0.43 + 736.84 * 1.50 * 0.43) / max_coefficients = 448.66576645471247

score = 603.5412863838054 * 0.5 + 448.66576645471247 * 0.5 = 526.103526419259

Rating changes

Show

all results
Date Place Points Reason
2026-07-14 76 -> 75 519.41 -> 526.10

Guardian of the Winds: 14% -> 0%
2026-07-12 75 -> 76 519.41
2026-07-07 70 -> 75 540.73 -> 519.41

Moscow Open Riichi Marathon: 57% -> 43%
2026-07-04 68 -> 70 546.89 -> 540.73

Dirty Riichi: 57% -> 43%
2026-07-03 69 -> 68 546.89
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%

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 43% 3.10 RR Moscow Open Riichi Marathon Moscow
5 737 2025-01-04 6/20 43% 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 0% 2.80 RR Guardian of the Winds Yekaterinburg
8 215 2024-05-12 85/108 0% 4.60 RR X Russian Championship Perm