USCF player statistics
Fernandez-Aller, Santiago
Official US Chess record- FIDE
- FIDE 39999637
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-132 Quick vs Regular
No national baseline for this rating band yet.
-1,123 Online Regular vs Regular (provisional)
No national baseline for this rating band yet.
-1,011 Online Quick vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +24
- Jan 2026 to Feb 2026
- Biggest drop
- -25
- May 2026 to Jun 2026
- Longest rise
- 1 update
- +24 from Jan 2026 to Feb 2026
- Current run
- 2 updates
- Unchanged since Jul 2026
- Typical move
- ±9
- Mean absolute change; spread ±13.2
Regular rating in context
United States
#9,224of 83,635 rated members · higher than 88.9%
74,390 lower · 22 same rating · 9,223 higher · ties share a rank
New York
#1,025of 9,415 rated members · higher than 89%
8,388 lower · 3 same rating · 1,024 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 5,962 within 100 points of 1,740 (this player included)
1,700–1,749: 1,684 members (2%) · highlighted band is the player’s · dashed line is the target
89.2% below 1,750 (74,637 of 83,635; 88.9% below 1,740)
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 | Online Regular | Online Quick |
|---|---|---|---|---|
| Sep 2026 | 1,740no change | 1,608no change | 617 Pno change · 16 games | 729 Pno change · 16 games |
| Aug 2026 | 1,740no change | 1,608no change | 617 Pno change · 16 games | 729 Pno change · 16 games |
| Jul 2026 | 1,740+6 | 1,608no change | 617 Pno change · 16 games | 729 Pno change · 16 games |
| Jun 2026 | 1,734-25 | 1,608-41 | 617 Pno change · 16 games | 729 Pno change · 16 games |
| May 2026 | 1,759-9 | 1,649no change | 617 Pno change · 16 games | 729 Pno change · 16 games |
| Apr 2026 | 1,768-5 | 1,649no change | 617 Pno change · 16 games | 729 Pno change · 16 games |
| Mar 2026 | 1,773no change | 1,649no change | 617 Pno change · 16 games | 729 Pno change · 16 games |
| Feb 2026 | 1,773+24 | 1,649no change | 617 Pno change · 16 games | 729 Pno change · 16 games |
| Jan 2026 | 1,749-9 | 1,649no change | 617 Pno change · 16 games | 729 Pno change · 16 games |
| Dec 2025 | 1,758 | 1,649 | 617 P16 games | 729 P16 games |