USCF player statistics
Tsang, Chelsea
- Gender
- Female
US Chess record as of Aug 2, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +26
- Oct 2026 to Nov 2026
- Biggest drop
- -71
- Sep 2026 to Oct 2026
- Longest rise
- 1 update
- +26 from Oct 2026 to Nov 2026
- Updates that moved
- 2 of 2
- Latest +26, Oct 2026 to Nov 2026
- Typical move
- ±49
- Mean absolute change; spread ±68.6
Regular rating in context
United States
#52,565of 83,032 rated members · higher than 36.6%
30,405 lower · 63 same rating · 52,564 higher · ties share a rank
California
#6,147of 9,288 rated members · higher than 33.7%
3,136 lower · 6 same rating · 6,146 higher · ties share a rank
Where this rating sits · United States
83,032 rated members in 50-point bands · median 850–899 · 10,251 within 100 points of 617 (this player included)
600–649: 2,591 members (3.1%) · highlighted band is the player’s · dashed line is the target
38.6% below 650 (32,088 of 83,032; 36.6% below 617)
Percentile over time · United States
36.6% higher than · Nov 2026 · rank #52,565 of 83,032
Since Sep 2026
-3.3 pts
How these comparisons are calculated
Chess67 calculations from the Nov 2026 monthly rating update, using the same population as the USCF statistics pages: US members classified as active in the published monthly records, excluding lifetime-coded records, provisional ratings included. Ties share a rank; “lower” is strictly lower; national and state groups overlap. The target explorer keeps the population fixed, with this player at their recorded rating: it is a rating comparison, not a prediction of future rank.
Published ratings by month
P marks a provisional rating; the small figure is the change since the previous published observation.
| Month | Regular | Quick |
|---|---|---|
| Nov 2026 | 617 P+26 · 15 games | 611 P+19 · 15 games |
| Oct 2026 | 591 P-71 · 11 games | 592 P-69 · 11 games |
| Sep 2026 | 662 P4 games | 661 P4 games |