USCF player statistics
O'Connor, Zachary W
- Gender
- Male
- FIDE
- FIDE 0
- Floor
- Regular 105 · Quick 105 · Blitz 121
- Rated games
- Blitz 21
US Chess record as of Sep 15, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- —
- No gain between published updates yet
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- —
- No consecutive gains yet
- Current run
- 11 updates
- Unchanged since Dec 2025
- Typical move
- ±0
- Mean absolute change; spread ±0
Regular rating in context
United States
#55,060of 83,032 rated members · higher than 33.6%
27,942 lower · 31 same rating · 55,059 higher · ties share a rank
Pennsylvania
#1,838of 2,576 rated members · higher than 28.5%
736 lower · 3 same rating · 1,837 higher · ties share a rank
Where this rating sits · United States
83,032 rated members in 50-point bands · median 850–899 · 10,459 within 100 points of 570 (this player included)
550–599: 2,600 members (3.1%) · highlighted band is the player’s · dashed line is the target
35.5% below 600 (29,497 of 83,032; 33.6% below 570)
Percentile over time · United States
33.6% higher than · Nov 2026 · rank #55,060 of 83,032
Since Dec 2025
-0.6 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 | 570no change | 566no change | 834 Pno change · 21 games |
| Oct 2026 | 570no change | 566no change | 834 Pno change · 21 games |
| Sep 2026 | 570no change | 566no change | 834 P21 games |
| Aug 2026 | 570no change | 566no change | — |
| Jul 2026 | 570no change | 566no change | — |
| Jun 2026 | 570no change | 566no change | — |
| May 2026 | 570no change | 566no change | — |
| Apr 2026 | 570no change | 566no change | — |
| Mar 2026 | 570no change | 566no change | — |
| Feb 2026 | 570no change | 566no change | — |
| Jan 2026 | 570no change | 566no change | — |
| Dec 2025 | 570 | 566 | — |