Kosolapov Stanislav

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date May 1, 2026 (latest changes May 1, 2026).

146 place (296.65).

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

p1 = (657.14 * 1.90 * 0.86 + 246.75 * 3.45 * 1 + 800 * 1.70 * 1 + 0 + 0) / (1.90 * 0.86 + 3.45 * 1 + 1.70 * 1 + 1 + 1) = 373.8057456350693

p2 = (800 * 1.70 * 1 + 657.14 * 1.90 * 0.86 + 246.75 * 3.45 * 1) / max_coefficients = 219.49498327759198

score = 373.8057456350693 * 0.5 + 219.49498327759198 * 0.5 = 296.65036445633064

Rating changes

Show

all results
Date Place Points Reason
2026-05-01 149 -> 146 296.65
2026-04-27 151 -> 149 296.65
2026-04-26 141 -> 151 306.87 -> 296.65

Seihoku spring tournament 2025: 100% -> 86%
2026-04-19 139 -> 141 306.87
2026-04-11 191 -> 139 195.97 -> 306.87

Seihoku spring tournament 2026: 0% -> 100%
2026-04-05 186 -> 191 195.97
2026-04-04 187 -> 186 195.97
2026-03-30 188 -> 187 195.97
2026-03-12 189 -> 188 195.97
2026-03-10 190 -> 189 195.97

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 86% 1.90 RR Seihoku spring tournament 2025 Saint Petersburg