USCF player statistics
Petersen, Mark
Official US Chess record- FIDE
- FIDE 0
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-55 Quick vs Regular (provisional)
No national baseline for this rating band yet.
-488 Blitz vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +100
- Jun 2026 to Jul 2026
- Biggest drop
- -50
- Feb 2026 to Mar 2026
- Longest rise
- 1 update
- +100 from Jun 2026 to Jul 2026
- Current run
- 2 updates
- Unchanged since Jul 2026
- Typical move
- ±17
- Mean absolute change; spread ±39.1
Regular rating in context
United States
#34,153of 83,635 rated members · higher than 59.1%
49,435 lower · 48 same rating · 34,152 higher · ties share a rank
Utah
#266of 656 rated members · higher than 59.2%
389 lower · 2 same rating · 265 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 7,942 within 100 points of 1,018 (this player included)
1,000–1,049: 1,959 members (2.3%) · highlighted band is the player’s · dashed line is the target
60.6% below 1,050 (50,700 of 83,635; 59.1% below 1,018)
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 | 1,018no change | 963 Pno change · 23 games | 530no change |
| Aug 2026 | 1,018no change | 963 Pno change · 23 games | 530no change |
| Jul 2026 | 1,018+100 | 963 Pno change · 23 games | 530no change |
| Jun 2026 | 918 Pno change · 23 games | 963 Pno change · 23 games | 530no change |
| May 2026 | 918 Pno change · 23 games | 963 Pno change · 23 games | 530no change |
| Apr 2026 | 918 Pno change · 23 games | 963 Pno change · 23 games | 530no change |
| Mar 2026 | 918 P-50 · 23 games | 963 P-30 · 23 games | 530no change |
| Feb 2026 | 968 Pno change · 23 games | 993 Pno change · 23 games | 530no change |
| Jan 2026 | 968 Pno change · 20 games | 993 Pno change · 20 games | 530no change |
| Dec 2025 | 968 P20 games | 993 P20 games | 530 |