USCF player statistics

Del Rosario, Dylan D

USCF 31498784IllinoisLatest monthly rating update: Sep 2026
Official US Chess record
Rating format

Regular rating

3550 since Aug 2026

Published rating · Sep 2026 · 10 published updates since Dec 2025

Sep 2026355 Regular
Dec 2025: 311Jan 2026: 328Feb 2026: 328Mar 2026: 328Apr 2026: 355May 2026: 355Jun 2026: 355Jul 2026: 355Aug 2026: 355Sep 2026: 355
Dec 2025Sep 2026
10 updates in this window · +44 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity
Overlays their published ratings on the chart; the link keeps the comparison.

Other formats against Regular

  • +1 Quick vs Regular

    No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+27
Mar 2026 to Apr 2026
Biggest drop
No drop between published updates yet
Longest rise
1 update
+27 from Mar 2026 to Apr 2026
Current run
5 updates
Unchanged since Apr 2026
Typical move
±5
Mean absolute change; spread ±10

Regular rating in context

Sep 2026 update

United States

#66,683of 83,635 rated members · higher than 20.2%

16,901 lower · 52 same rating · 66,682 higher · ties share a rank

Illinois

#3,463of 4,678 rated members · higher than 25.9%

1,214 lower · 2 same rating · 3,462 higher · ties share a rank

Where this rating sits · United States

83,635 rated members in 50-point bands · median 800–849 · 10,699 within 100 points of 355 (this player included)

Player · 355
01,4502,900

350399: 2,689 members (3.2%) · highlighted band is the player’s · dashed line is the target

23% below 400 (19,308 of 83,635; 20.2% below 355)

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.

United States statistics Illinois statistics

Published ratings by month

P marks a provisional rating; the small figure is the change since the previous published observation.

Monthly USCF ratings for Del Rosario, Dylan D
MonthRegularQuick
Sep 2026355no change356-1
Aug 2026355no change357+1
Jul 2026355no change356no change
Jun 2026355no change356no change
May 2026355no change356no change
Apr 2026355+27356+28
Mar 2026328no change328no change
Feb 2026328no change328no change
Jan 2026328+17328+16
Dec 2025311312

Enter an 8-digit USCF ID, or at least 3 letters of a name. Similar names in IL appear first.

About these statistics. Built from the monthly USCF rating updates available to Chess67. Ratings change between publications, and a missing month is not inactivity. The official US Chess record has current ratings and tournament history.