USCF player statistics
Castillo, Marlon
Official US Chess record- US Chess reported rank
- #34,205 national · #482 in state
- Floor
- Regular 117 · Quick 117
- Rated games
- Regular 5 · Quick 5
US Chess record as of Aug 18, 2026
Regular rating
Provisional rating · Sep 2026 · 9 published updates since Jan 2026
Other formats against Regular
-108 Quick vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- —
- No gain between published updates yet
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- —
- No consecutive gains yet
- Current run
- 8 updates
- Unchanged since Jan 2026
- Typical move
- ±0
- Mean absolute change; spread ±0
Regular rating in context
United States
#40,413of 83,635 rated members · higher than 51.6%
43,177 lower · 46 same rating · 40,412 higher · ties share a rank
Minnesota
#597of 1,021 rated members · higher than 41.5%
424 lower · 1 same rating · 596 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 8,891 within 100 points of 868 (this player included)
850–899: 2,189 members (2.6%) · highlighted band is the player’s · dashed line is the target
53.2% below 900 (44,559 of 83,635; 51.6% below 868)
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 | 868 Pno change · 5 games | 760 Pno change · 5 games |
| Aug 2026 | 868 Pno change · 5 games | 760 Pno change · 5 games |
| Jul 2026 | 868 Pno change · 5 games | 760 Pno change · 5 games |
| Jun 2026 | 868 Pno change · 5 games | 760 Pno change · 5 games |
| May 2026 | 868 Pno change · 5 games | 760 Pno change · 5 games |
| Apr 2026 | 868 Pno change · 5 games | 760 Pno change · 5 games |
| Mar 2026 | 868 Pno change · 5 games | 760 Pno change · 5 games |
| Feb 2026 | 868 Pno change · 5 games | 760 Pno change · 5 games |
| Jan 2026 | 868 P5 games | 760 P5 games |
| Dec 2025 | — | — |