Kosolapov Stanislav

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date Nov. 4, 2025 (latest changes Nov. 4, 2025).

183 place (195.97).

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

p1 = (657.14 * 1.90 * 1 + 246.75 * 3.45 * 1 + 0 + 0 + 0) / (1.90 * 1 + 3.45 * 1 + 1 + 1 + 1) = 251.4814371257485

p2 = (657.14 * 1.90 * 1 + 246.75 * 3.45 * 1) / max_coefficients = 140.45953177257525

score = 251.4814371257485 * 0.5 + 140.45953177257525 * 0.5 = 195.97048444916186

Rating changes

Show

all results
Date Place Points Reason
2025-11-04 174 -> 183 199.16 -> 195.97
2025-11-01 174 198.91 -> 199.16
2025-10-13 174 196.68 -> 198.91
2025-10-04 176 -> 174 196.68
2025-09-30 178 -> 176 196.68
2025-09-12 180 -> 178 196.68
2025-09-03 184 -> 180 196.68
2025-09-01 184 194.82 -> 196.68
2025-08-31 184 194.82

SPB Riichi Open 2025: 0% -> 100%

Tournaments

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