Zubova Kseniya

From Saint Petersburg, Russia

Player page

Common russian riichi rating (CRR)

Rating date Nov. 1, 2026 (latest changes Oct. 31, 2026).

239 place (253.83).

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

p1 = (480.52 * 3.45 * 0.71 + 216.22 * 3.40 * 1 + 633.33 * 1.70 * 1 + 0 + 0) / (3.45 * 0.71 + 3.40 * 1 + 1.70 * 1 + 1 + 1) = 313.2439422082142

p2 = (480.52 * 3.45 * 0.71 + 633.33 * 1.70 * 1 + 216.22 * 3.40 * 1) / max_coefficients = 194.41726151849446

score = 313.2439422082142 * 0.5 + 194.41726151849446 * 0.5 = 253.83060186335433

Rating changes

Show

all results
Date Place Points Reason
2026-10-31 228 -> 239 265.61 -> 253.83

SPB Riichi Open 2025: 86% -> 71%
2026-10-24 226 -> 228 265.61
2026-10-16 228 -> 226 265.61
2026-10-13 232 -> 228 265.61
2026-09-26 231 -> 232 265.61
2026-09-15 232 -> 231 265.61
2026-09-06 226 -> 232 265.61
2026-09-01 231 -> 226 265.61
2026-08-31 227 -> 231 276.65 -> 265.61

SPB Riichi Open 2025: 100% -> 86%
2026-08-30 225 -> 227 276.65

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 633 2026-04-11 12/31 100% 1.70 RR Seihoku spring tournament 2026 Saint Petersburg
2 216 2026-02-23 59/75 100% 3.40 RR White Wolf Cup 2026 Saint Petersburg
3 481 2025-08-31 41/78 71% 3.45 RR SPB Riichi Open 2025 Saint Petersburg