USCF player statistics
Tetsworth, John Isaac
Official US Chess record- FIDE
- FIDE 39983412
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-77 Quick vs Regular
No national baseline for this rating band yet.
-207 Blitz vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +32
- May 2026 to Jun 2026
- Biggest drop
- -12
- Jun 2026 to Jul 2026
- Longest rise
- 3 updates
- +60 from Mar 2026 to Jun 2026
- Current run
- 2 updates
- Unchanged since Jul 2026
- Typical move
- ±11
- Mean absolute change; spread ±14.5
Regular rating in context
United States
#10,161of 83,635 rated members · higher than 87.8%
73,439 lower · 36 same rating · 10,160 higher · ties share a rank
North Carolina
#317of 2,742 rated members · higher than 88.4%
2,424 lower · 2 same rating · 316 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 6,158 within 100 points of 1,708 (this player included)
1,700–1,749: 1,684 members (2%) · highlighted band is the player’s · dashed line is the target
89.2% below 1,750 (74,637 of 83,635; 87.8% below 1,708)
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 | 1,708no change | 1,631-3 | 1,501 Pno change · 16 games |
| Aug 2026 | 1,708no change | 1,634no change | 1,501 P-5 · 16 games |
| Jul 2026 | 1,708-12 | 1,634-2 | 1,506 P16 games |
| Jun 2026 | 1,720+32 | 1,636no change | — |
| May 2026 | 1,688+6 | 1,636+35 | — |
| Apr 2026 | 1,682+22 | 1,601+4 | — |
| Mar 2026 | 1,660no change | 1,597no change | — |
| Feb 2026 | 1,660+24 | 1,597-18 | — |
| Jan 2026 | 1,636no change | 1,615no change | — |
| Dec 2025 | 1,636 | 1,615 | — |