USCF player statistics
Castillo, Ethan
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 7 published updates since Mar 2026
Other formats against Regular
-4 Quick vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +61
- Jun 2026 to Jul 2026
- Biggest drop
- -31
- Apr 2026 to May 2026
- Longest rise
- 1 update
- +61 from Jun 2026 to Jul 2026
- Current run
- 2 updates
- Unchanged since Jul 2026
- Typical move
- ±24
- Mean absolute change; spread ±34.8
Regular rating in context
United States
#61,870of 83,635 rated members · higher than 25.9%
21,718 lower · 48 same rating · 61,869 higher · ties share a rank
New York
#6,772of 9,415 rated members · higher than 28%
2,641 lower · 3 same rating · 6,771 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,996 within 100 points of 444 (this player included)
400–449: 2,735 members (3.2%) · highlighted band is the player’s · dashed line is the target
26.3% below 450 (22,043 of 83,635; 25.9% below 444)
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 | 444 Pno change · 23 games | 440 Pno change · 23 games |
| Aug 2026 | 444 Pno change · 23 games | 440 Pno change · 23 games |
| Jul 2026 | 444 P+61 · 23 games | 440 P+63 · 23 games |
| Jun 2026 | 383 Pno change · 19 games | 377 Pno change · 19 games |
| May 2026 | 383 P-31 · 19 games | 377 P-31 · 19 games |
| Apr 2026 | 414 P+49 · 11 games | 408 P+48 · 11 games |
| Mar 2026 | 365 P7 games | 360 P7 games |
| Feb 2026 | — | — |
| Jan 2026 | — | — |
| Dec 2025 | — | — |