Bogdanov Mikhail

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date Sept. 9, 2026 (latest changes Sept. 7, 2026).

261 place (27.20).

max_coefficients = (4.71 * 1 + 3.90 * 1 + 3.40 * 1 + 3.40 * 1) = 15.41

p1 = (90.91 * 3.45 * 0.86 + 14.08 * 3.40 * 1 + 0 + 0 + 0) / (3.45 * 0.86 + 3.40 * 1 + 1 + 1 + 1) = 33.84740506968316

p2 = (90.91 * 3.45 * 0.86 + 14.08 * 3.40 * 1) / max_coefficients = 20.55223880597015

score = 33.84740506968316 * 0.5 + 20.55223880597015 * 0.5 = 27.199821937826655

Rating changes

Show

all results
Date Place Points Reason
2026-09-07 262 -> 261 27.20
2026-09-06 262 27.20

Sunset Wolf Cup 2026: 0% -> 100%

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 14 2026-09-06 71/72 100% 3.40 RR Sunset Wolf Cup 2026 Saint Petersburg
2 91 2025-08-31 71/78 86% 3.45 RR SPB Riichi Open 2025 Saint Petersburg