Kosolapov Stanislav

From Saint Petersburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date Nov. 3, 2026 (latest changes Nov. 3, 2026).

196 place (305.88).

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

p1 = (657.14 * 1.90 * 0.43 + 246.75 * 3.45 * 0.71 + 800 * 1.70 * 1 + 322.58 * 1.80 * 1 + 257.14 * 1.90 * 1) / (1.90 * 0.43 + 3.45 * 0.71 + 1.70 * 1 + 1.80 * 1 + 1.90 * 1) = 411.6342644470499

p2 = (800 * 1.70 * 1 + 246.75 * 3.45 * 0.71 + 322.58 * 1.80 * 1 + 657.14 * 1.90 * 0.43) / max_coefficients = 200.12134977287474

score = 411.6342644470499 * 0.5 + 200.12134977287474 * 0.5 = 305.8778071099623

Rating changes

Show

all results
Date Place Points Reason
2026-11-03 198 -> 196 305.88
2026-10-31 200 -> 198 297.77 -> 305.88

SPB Riichi Open 2025: 86% -> 71%

Seihoku autumn tournament 2026: 0% -> 100%
2026-10-26 192 -> 200 307.84 -> 297.77

Seihoku spring tournament 2025: 57% -> 43%
2026-10-24 188 -> 192 307.84
2026-10-17 187 -> 188 307.84
2026-10-16 188 -> 187 307.84
2026-10-15 189 -> 188 307.84
2026-10-13 191 -> 189 307.84
2026-10-10 190 -> 191 307.84
2026-10-03 191 -> 190 307.84

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 257 2026-10-31 27/36 100% 1.90 RR Seihoku autumn tournament 2026 Saint Petersburg
2 323 2026-07-25 22/32 100% 1.80 RR Seihoku Summer Tournament 2026 Saint Petersburg
3 800 2026-04-11 7/31 100% 1.70 RR Seihoku spring tournament 2026 Saint Petersburg
4 247 2025-08-31 59/78 71% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
5 657 2025-04-26 13/36 43% 1.90 RR Seihoku spring tournament 2025 Saint Petersburg