Kosolapov Stanislav

From Saint Petersburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date Sept. 5, 2026 (latest changes Sept. 4, 2026).

187 place (307.84).

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

p1 = (657.14 * 1.90 * 0.57 + 246.75 * 3.45 * 0.86 + 800 * 1.70 * 1 + 322.58 * 1.80 * 1 + 0) / (1.90 * 0.57 + 3.45 * 0.86 + 1.70 * 1 + 1.80 * 1 + 1) = 396.0981685436202

p2 = (800 * 1.70 * 1 + 246.75 * 3.45 * 0.86 + 657.14 * 1.90 * 0.57 + 322.58 * 1.80 * 1) / max_coefficients = 219.58014276443868

score = 396.0981685436202 * 0.5 + 219.58014276443868 * 0.5 = 307.83915565402947

Rating changes

Show

all results
Date Place Points Reason
2026-09-04 188 -> 187 307.84
2026-09-03 189 -> 188 307.84
2026-09-01 194 -> 189 307.84
2026-08-31 193 -> 194 307.34 -> 307.84

SPB Riichi Open 2025: 100% -> 86%
2026-08-30 191 -> 193 307.34
2026-08-26 183 -> 191 317.04 -> 307.34

Seihoku spring tournament 2025: 71% -> 57%
2026-08-16 180 -> 183 317.04
2026-08-15 181 -> 180 316.17 -> 317.04
2026-08-13 182 -> 181 316.17
2026-08-04 184 -> 182 316.17

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 323 2026-07-25 22/32 100% 1.80 RR Seihoku Summer Tournament 2026 Saint Petersburg
2 800 2026-04-11 7/31 100% 1.70 RR Seihoku spring tournament 2026 Saint Petersburg
3 247 2025-08-31 59/78 86% 3.45 RR SPB Riichi Open 2025 Saint Petersburg
4 657 2025-04-26 13/36 57% 1.90 RR Seihoku spring tournament 2025 Saint Petersburg