USCF player statistics
Ding, Isabella
Official US Chess record- FIDE
- FIDE 39996271
- US Chess reported rank
- #3,682 national · #253 in state
- Floor
- Regular 1,700 · Quick 1,500 · Blitz 138
US Chess record as of Sep 15, 2026
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-144 Quick vs Regular
No national baseline for this rating band yet.
-821 Blitz vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +92
- Jan 2026 to Feb 2026
- Biggest drop
- -8
- Feb 2026 to Mar 2026
- Longest rise
- 3 updates
- +90 from Jun 2026 to Sep 2026
- Updates that moved
- 7 of 9
- Latest +34, Aug 2026 to Sep 2026
- Typical move
- ±28
- Mean absolute change; spread ±35.5
Regular rating in context
United States
#4,679of 83,635 rated members · higher than 94.3%
78,939 lower · 18 same rating · 4,678 higher · ties share a rank
California
#668of 9,051 rated members · higher than 92.5%
8,380 lower · 4 same rating · 667 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 4,243 within 100 points of 1,915 (this player included)
1,900–1,949: 1,134 members (1.3%) · highlighted band is the player’s · dashed line is the target
95.1% below 1,950 (79,593 of 83,635; 94.3% below 1,915)
How these comparisons are calculated
Chess67 calculations from the Sep 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 | Blitz |
|---|---|---|---|
| Sep 2026 | 1,915+34 | 1,771+59 | 1,094-1 |
| Aug 2026 | 1,881+3 | 1,712+38 | 1,095no change |
| Jul 2026 | 1,878+53 | 1,674+72 | 1,095no change |
| Jun 2026 | 1,825no change | 1,602no change | 1,095no change |
| May 2026 | 1,825no change | 1,602no change | 1,095no change |
| Apr 2026 | 1,825+2 | 1,602+13 | 1,095no change |
| Mar 2026 | 1,823-8 | 1,589+7 | 1,095no change |
| Feb 2026 | 1,831+92 | 1,582-12 | 1,095+136 |
| Jan 2026 | 1,739+62 | 1,594+66 | 959no change |
| Dec 2025 | 1,677 | 1,528 | 959 |