USCF player statistics
Foster, Jack Ambrose
- Gender
- Male
- US Chess reported rank
- #31,553 national · #652 in state
- Floor
- Regular 121 · Quick 121 · Online Regular 100
- Rated games
- Regular 18 · Quick 17 · Online Regular 18
US Chess record as of Sep 15, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +359
- Dec 2025 to Feb 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 1 update
- +359 from Dec 2025 to Feb 2026
- Current run
- 9 updates
- Unchanged since Feb 2026
- Typical move
- ±36
- Mean absolute change; spread ±113.5
Regular rating in context
United States
#39,508of 83,032 rated members · higher than 52.3%
43,481 lower · 44 same rating · 39,507 higher · ties share a rank
Georgia
#826of 2,021 rated members · higher than 59%
1,194 lower · 2 same rating · 825 higher · ties share a rank
Where this rating sits · United States
83,032 rated members in 50-point bands · median 850–899 · 8,701 within 100 points of 896 (this player included)
850–899: 2,146 members (2.5%) · highlighted band is the player’s · dashed line is the target
52.5% below 900 (43,657 of 83,032; 52.3% below 896)
Percentile over time · United States
52.3% higher than · Nov 2026 · rank #39,508 of 83,032
Since Dec 2025
+20.2 pts
How these comparisons are calculated
Chess67 calculations from the Nov 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 |
|---|---|---|---|
| Nov 2026 | 896 Pno change · 18 games | 858 Pno change · 17 games | 1,006 Pno change · 18 games |
| Oct 2026 | 896 Pno change · 18 games | 858 Pno change · 17 games | 1,006 Pno change · 18 games |
| Sep 2026 | 896 Pno change · 18 games | 858 Pno change · 17 games | 1,006 Pno change · 18 games |
| Aug 2026 | 896 Pno change · 18 games | 858 Pno change · 17 games | 1,006 Pno change · 18 games |
| Jul 2026 | 896 Pno change · 18 games | 858 Pno change · 17 games | 1,006 Pno change · 18 games |
| Jun 2026 | 896 Pno change · 18 games | 858 Pno change · 17 games | 1,006 Pno change · 18 games |
| May 2026 | 896 Pno change · 18 games | 858 Pno change · 17 games | 1,006 Pno change · 18 games |
| Apr 2026 | 896 Pno change · 18 games | 858 Pno change · 17 games | 1,006 Pno change · 18 games |
| Mar 2026 | 896 Pno change · 18 games | 858 Pno change · 17 games | 1,006 Pno change · 18 games |
| Feb 2026 | 896 P+359 · 18 games | 858 P+372 · 17 games | 1,006 Pno change · 18 games |
| Dec 2025 | 537 P13 games | 486 P12 games | 1,006 P18 games |