USCF player statistics
Der, Roshan
Official US Chess record- US Chess reported rank
- #19,930 national · #2,264 in state
- Floor
- Regular 150 · Quick 150
US Chess record as of Aug 25, 2026
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-53 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +300
- Dec 2025 to Jan 2026
- Biggest drop
- -29
- Jul 2026 to Aug 2026
- Longest rise
- 3 updates
- +395 from Dec 2025 to Mar 2026
- Updates that moved
- 9 of 9
- Latest +63, Aug 2026 to Sep 2026
- Typical move
- ±69
- Mean absolute change; spread ±97.4
Regular rating in context
United States
72.5%of the comparison population has a lower rating.
60,718 lower · 34 same rating · 22,883 higher
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 6,930 within 100 points of 1,333
1,300–1,349: 1,775 members (2.1%) · highlighted band is the player’s · dashed line is the target
73.2% below 1,350 (61,297 of 83,635; 72.5% below 1,333)
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: it is a rating comparison, not a prediction of future rank. This player is outside that comparison population; no membership rank is assigned.
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 | 1,333+63 | 1,280+75 |
| Aug 2026 | 1,270-29 | 1,205-29 |
| Jul 2026 | 1,299+18 | 1,234+20 |
| Jun 2026 | 1,281+67 | 1,214+35 |
| May 2026 | 1,214+28 | 1,179+34 |
| Apr 2026 | 1,186-24 | 1,145-26 |
| Mar 2026 | 1,210+38 | 1,171+40 |
| Feb 2026 | 1,172+57 | 1,131+35 |
| Jan 2026 | 1,115+300 | 1,096+310 |
| Dec 2025 | 815 | 786 |