USCF player statistics
Begley, Isaac
- Biggest rank climb · #14 in Colorado (Quick)
- Biggest rank climb · #11 in Colorado (Regular)
- Fastest rising · #11 in Colorado (Quick)
- Fastest rising · #11 in Colorado (Regular)
- Gender
- Male
- US Chess reported rank
- #27,756 national · #475 in state
- Floor
- Regular 150 · Quick 150 · Blitz 119
- Rated games
- Blitz 19
US Chess record as of Sep 17, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +146
- Oct 2026 to Nov 2026
- Biggest drop
- -76
- Apr 2026 to May 2026
- Longest rise
- 1 update
- +146 from Oct 2026 to Nov 2026
- Updates that moved
- 6 of 11
- Latest +146, Oct 2026 to Nov 2026
- Typical move
- ±39
- Mean absolute change; spread ±64.8
Regular rating in context
United States
#29,778of 83,032 rated members · higher than 64.1%
53,224 lower · 31 same rating · 29,777 higher · ties share a rank
Colorado
#533of 1,039 rated members · higher than 48.7%
506 lower · 1 same rating · 532 higher · ties share a rank
Where this rating sits · United States
83,032 rated members in 50-point bands · median 850–899 · 7,293 within 100 points of 1,142 (this player included)
1,100–1,149: 1,819 members (2.1%) · highlighted band is the player’s · dashed line is the target
64.4% below 1,150 (53,488 of 83,032; 64.1% below 1,142)
Percentile over time · United States
64.1% higher than · Nov 2026 · rank #29,778 of 83,032
Since Dec 2025
+8.6 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 | Blitz |
|---|---|---|---|
| Nov 2026 | 1,142+146 | 1,129+161 | 874 Pno change · 19 games |
| Oct 2026 | 996no change | 968no change | 874 Pno change · 19 games |
| Sep 2026 | 996no change | 968no change | 874 Pno change · 19 games |
| Aug 2026 | 996no change | 968no change | 874 Pno change · 19 games |
| Jul 2026 | 996no change | 968no change | 874 Pno change · 19 games |
| Jun 2026 | 996+2 | 968-26 | 874 Pno change · 19 games |
| May 2026 | 994-76 | 994-53 | 874 Pno change · 19 games |
| Apr 2026 | 1,070+125 | 1,047+164 | 874 Pno change · 19 games |
| Mar 2026 | 945-38 | 883-55 | 874 P19 games |
| Feb 2026 | 983no change | 938no change | — |
| Jan 2026 | 983+37 | 938+31 | — |
| Dec 2025 | 946 | 907 | — |