Vorobeva Polina

From Cherepovets, Russia

Player page

Internal rating (RR)

Rating date Aug. 31, 2026 (latest changes Aug. 31, 2026).

166 place (279.81).

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

p1 = (402.60 * 3.45 * 0.86 + 608.11 * 3.40 * 1 + 0 + 0 + 0) / (3.45 * 0.86 + 3.40 * 1 + 1 + 1 + 1) = 348.19405161593016

p2 = (608.11 * 3.40 * 1 + 402.60 * 3.45 * 0.86) / max_coefficients = 211.4243997404283

score = 348.19405161593016 * 0.5 + 211.4243997404283 * 0.5 = 279.80922567817925

Rating changes

Show

all results
Date Place Points Reason
2026-08-31 161 -> 166 287.25 -> 279.81

SPB Riichi Open 2025: 100% -> 86%
2026-08-26 162 -> 161 287.25
2026-08-16 158 -> 162 287.25
2026-08-15 158 286.43 -> 287.25
2026-08-13 159 -> 158 286.43
2026-08-04 161 -> 159 286.43
2026-07-26 162 -> 161 286.43
2026-07-25 161 -> 162 286.43
2026-07-18 159 -> 161 286.43
2026-07-14 161 -> 159 286.43

Tournaments

# Base rank Date Place Power Coefficient Rating Tournament City
1 608 2026-02-23 30/75 100% 3.40 RR White Wolf Cup 2026 Saint Petersburg
2 403 2025-08-31 47/78 86% 3.45 RR SPB Riichi Open 2025 Saint Petersburg