USCF player statistics
Sirna, Thomas Charles
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-200 Quick vs Regular (provisional)
No national baseline for this rating band yet.
-51 Blitz vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +71
- Apr 2026 to May 2026
- Biggest drop
- -12
- Jul 2026 to Aug 2026
- Longest rise
- 1 update
- +71 from Apr 2026 to May 2026
- Current run
- 1 update
- Unchanged since Aug 2026
- Typical move
- ±14
- Mean absolute change; spread ±26.5
Regular rating in context
Alabama
#133of 611 rated members · higher than 78%
477 lower · 2 same rating · 132 higher · ties share a rank
United States
#21,548of 83,635 rated members · higher than 74.1%
62,051 lower · 37 same rating · 21,547 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 6,868 within 100 points of 1,374 (this player included)
1,350–1,399: 1,636 members (1.9%) · highlighted band is the player’s · dashed line is the target
75.2% below 1,400 (62,933 of 83,635; 74.1% below 1,374)
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 | Blitz |
|---|---|---|---|
| Sep 2026 | 1,374no change | 1,174 Pno change · 20 games | 1,323 Pno change · 16 games |
| Aug 2026 | 1,374-12 | 1,174 Pno change · 20 games | 1,323 Pno change · 16 games |
| Jul 2026 | 1,386no change | 1,174 P-35 · 20 games | 1,323 P16 games |
| Jun 2026 | 1,386no change | 1,209 Pno change · 15 games | — |
| May 2026 | 1,386+71 | 1,209 Pno change · 15 games | — |
| Apr 2026 | 1,315no change | 1,209 Pno change · 15 games | — |
| Mar 2026 | 1,315no change | 1,209 Pno change · 15 games | — |
| Feb 2026 | 1,315+39 | 1,209 Pno change · 15 games | — |
| Jan 2026 | 1,276no change | 1,209 Pno change · 15 games | — |
| Dec 2025 | 1,276 | 1,209 P15 games | — |