Zubova Kseniya

From Saint Petersburg, Russia

Player page

Internal rating (RR)

Rating date Sept. 2, 2026 (latest changes Sept. 2, 2026).

167 place (265.61).

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

p1 = (480.52 * 3.45 * 0.86 + 216.22 * 3.40 * 1 + 633.33 * 1.70 * 1 + 0 + 0) / (3.45 * 0.86 + 3.40 * 1 + 1.70 * 1 + 1 + 1) = 321.43796432234484

p2 = (480.52 * 3.45 * 0.86 + 633.33 * 1.70 * 1 + 216.22 * 3.40 * 1) / max_coefficients = 209.77936404931864

score = 321.43796432234484 * 0.5 + 209.77936404931864 * 0.5 = 265.60866418583174

Rating changes

Show

all results
Date Place Points Reason
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
2026-08-03 171 -> 170 275.83
2026-07-26 172 -> 171 275.83
2026-07-25 171 -> 172 275.83
2026-07-18 170 -> 171 275.83

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 86% 3.45 RR SPB Riichi Open 2025 Saint Petersburg