Zubova Kseniya

From Saint Petersburg, Russia

Player page

Internal rating (RR)

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

177 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
2026-10-31 165 -> 177 265.61 -> 253.83

SPB Riichi Open 2025: 86% -> 71%
2026-10-16 167 -> 165 265.61
2026-10-13 173 -> 167 265.61
2026-09-06 167 -> 173 265.61
2026-09-01 170 -> 167 265.61
2026-08-31 169 -> 170 276.65 -> 265.61

SPB Riichi Open 2025: 100% -> 86%
2026-08-26 170 -> 169 276.65
2026-08-16 166 -> 170 276.65
2026-08-15 168 -> 166 275.83 -> 276.65
2026-08-04 170 -> 168 275.83

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