Kosolapov Stanislav

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date July 5, 2026 (latest changes July 3, 2026).

160 place (282.01).

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

p1 = (657.14 * 1.90 * 0.71 + 246.75 * 3.45 * 1 + 800 * 1.70 * 1 + 0 + 0) / (1.90 * 0.71 + 3.45 * 1 + 1.70 * 1 + 1 + 1) = 364.7687773960083

p2 = (800 * 1.70 * 1 + 657.14 * 1.90 * 0.71 + 246.75 * 3.45 * 1) / max_coefficients = 199.25055107482868

score = 364.7687773960083 * 0.5 + 199.25055107482868 * 0.5 = 282.0096642354185

Rating changes

Show

all results
Date Place Points Reason
2026-07-02 161 -> 160 282.01
2026-07-01 162 -> 161 282.01
2026-06-27 165 -> 162 282.01
2026-06-26 158 -> 165 292.25 -> 282.01

Seihoku spring tournament 2025: 86% -> 71%
2026-06-15 158 288.43 -> 292.25
2026-06-14 138 -> 158 297.39 -> 288.43
2026-06-13 139 -> 138 297.39
2026-06-04 142 -> 139 297.39
2026-05-17 138 -> 142 297.39
2026-05-12 145 -> 138 297.39

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 800 2026-04-11 7/31 100% 1.70 RR Seihoku spring tournament 2026 Saint Petersburg
2 247 2025-08-31 59/78 100% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
3 657 2025-04-26 13/36 71% 1.90 RR Seihoku spring tournament 2025 Saint Petersburg