USCF player statistics
Cha, David
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
+22 Quick vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +99
- May 2026 to Jun 2026
- Biggest drop
- -1
- Aug 2026 to Sep 2026
- Longest rise
- 1 update
- +99 from May 2026 to Jun 2026
- Updates that moved
- 2 of 9
- Latest -1, Aug 2026 to Sep 2026
- Typical move
- ±11
- Mean absolute change; spread ±33
Regular rating in context
United States
#52,358of 83,635 rated members · higher than 37.3%
31,231 lower · 47 same rating · 52,357 higher · ties share a rank
North Carolina
#1,829of 2,742 rated members · higher than 33.2%
913 lower · 1 same rating · 1,828 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,464 within 100 points of 619 (this player included)
600–649: 2,641 members (3.1%) · highlighted band is the player’s · dashed line is the target
39.2% below 650 (32,836 of 83,635; 37.3% below 619)
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 |
|---|---|---|
| Sep 2026 | 619 P-1 · 14 games | 641 Pno change · 14 games |
| Aug 2026 | 620 Pno change · 14 games | 641 Pno change · 14 games |
| Jul 2026 | 620 Pno change · 14 games | 641 Pno change · 14 games |
| Jun 2026 | 620 P+99 · 14 games | 641 P+91 · 14 games |
| May 2026 | 521 Pno change · 8 games | 550 Pno change · 8 games |
| Apr 2026 | 521 Pno change · 8 games | 550 Pno change · 8 games |
| Mar 2026 | 521 Pno change · 8 games | 550 Pno change · 8 games |
| Feb 2026 | 521 Pno change · 8 games | 550 Pno change · 8 games |
| Jan 2026 | 521 Pno change · 8 games | 550 Pno change · 8 games |
| Dec 2025 | 521 P8 games | 550 P8 games |