USCF player statistics
Tiomkin, Naomi
Official US Chess record- FIDE
- FIDE 39952088
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-36 Quick vs Regular
No national baseline for this rating band yet.
-390 Online Regular 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
- -74
- Dec 2025 to Jan 2026
- Longest rise
- —
- No consecutive gains yet
- Current run
- 8 updates
- Unchanged since Jan 2026
- Typical move
- ±8
- Mean absolute change; spread ±24.7
Regular rating in context
United States
#50,355of 83,635 rated members · higher than 39.7%
33,217 lower · 64 same rating · 50,354 higher · ties share a rank
Texas
#5,340of 10,810 rated members · higher than 50.4%
5,459 lower · 12 same rating · 5,339 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,192 within 100 points of 658 (this player included)
650–699: 2,499 members (2.9%) · highlighted band is the player’s · dashed line is the target
42.2% below 700 (35,335 of 83,635; 39.7% below 658)
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 | Online Regular |
|---|---|---|---|
| Sep 2026 | 658no change | 622no change | 268 Pno change · 15 games |
| Aug 2026 | 658no change | 622no change | 268 Pno change · 15 games |
| Jul 2026 | 658no change | 622no change | 268 Pno change · 15 games |
| Jun 2026 | 658no change | 622no change | 268 Pno change · 15 games |
| May 2026 | 658no change | 622no change | 268 Pno change · 15 games |
| Apr 2026 | 658no change | 622no change | 268 Pno change · 15 games |
| Mar 2026 | 658no change | 622no change | 268 Pno change · 15 games |
| Feb 2026 | 658no change | 622no change | 268 Pno change · 15 games |
| Jan 2026 | 658-74 | 622-63 | 268 Pno change · 15 games |
| Dec 2025 | 732 | 685 | 268 P15 games |