USCF player statistics
Ma, Derek
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 7 published updates since Mar 2026
Other formats against Regular
-12 Quick vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +6
- Jun 2026 to Jul 2026
- Biggest drop
- -62
- Mar 2026 to Apr 2026
- Longest rise
- 1 update
- +6 from Jun 2026 to Jul 2026
- Current run
- 2 updates
- Unchanged since Jul 2026
- Typical move
- ±11
- Mean absolute change; spread ±25.9
Regular rating in context
United States
#72,667of 83,635 rated members · higher than 13%
10,915 lower · 54 same rating · 72,666 higher · ties share a rank
New York
#8,048of 9,415 rated members · higher than 14.4%
1,364 lower · 4 same rating · 8,047 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 9,986 within 100 points of 240 (this player included)
200–249: 2,417 members (2.8%) · highlighted band is the player’s · dashed line is the target
13.6% below 250 (11,415 of 83,635; 13% below 240)
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 | 240 Pno change · 17 games | 228 Pno change · 17 games |
| Aug 2026 | 240 Pno change · 17 games | 228 Pno change · 17 games |
| Jul 2026 | 240 P+6 · 17 games | 228 P-6 · 17 games |
| Jun 2026 | 234 Pno change · 10 games | 234 Pno change · 10 games |
| May 2026 | 234 Pno change · 10 games | 234 Pno change · 10 games |
| Apr 2026 | 234 P-62 · 10 games | 234 P-62 · 10 games |
| Mar 2026 | 296 P4 games | 296 P4 games |
| Feb 2026 | — | — |