USCF player statistics
Xu, Mark
Official US Chess record- FIDE
- FIDE 39963098
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-181 Quick vs Regular
No national baseline for this rating band yet.
-308 Blitz vs Regular
No national baseline for this rating band yet.
-1,289 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
- +64
- Apr 2026 to May 2026
- Biggest drop
- -57
- Jun 2026 to Jul 2026
- Longest rise
- 3 updates
- +121 from Mar 2026 to Jun 2026
- Updates that moved
- 9 of 9
- Latest +16, Aug 2026 to Sep 2026
- Typical move
- ±36
- Mean absolute change; spread ±41.5
Regular rating in context
United States
#11,637of 83,635 rated members · higher than 86%
71,971 lower · 28 same rating · 11,636 higher · ties share a rank
New Jersey
#514of 3,003 rated members · higher than 82.8%
2,488 lower · 2 same rating · 513 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 6,392 within 100 points of 1,665 (this player included)
1,650–1,699: 1,441 members (1.7%) · highlighted band is the player’s · dashed line is the target
87.2% below 1,700 (72,953 of 83,635; 86% below 1,665)
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 | Online Regular |
|---|---|---|---|---|
| Sep 2026 | 1,665+16 | 1,484no change | 1,357+23 | 376 Pno change · 8 games |
| Aug 2026 | 1,649-25 | 1,484no change | 1,334no change | 376 Pno change · 8 games |
| Jul 2026 | 1,674-57 | 1,484-17 | 1,334no change | 376 Pno change · 8 games |
| Jun 2026 | 1,731+13 | 1,501+32 | 1,334+21 | 376 Pno change · 8 games |
| May 2026 | 1,718+64 | 1,469no change | 1,313no change | 376 Pno change · 8 games |
| Apr 2026 | 1,654+44 | 1,469-10 | 1,313no change | 376 Pno change · 8 games |
| Mar 2026 | 1,610-41 | 1,479-12 | 1,313no change | 376 Pno change · 8 games |
| Feb 2026 | 1,651-31 | 1,491no change | 1,313+18 | 376 Pno change · 8 games |
| Jan 2026 | 1,682-33 | 1,491-25 | 1,295no change | 376 Pno change · 8 games |
| Dec 2025 | 1,715 | 1,516 | 1,295 | 376 P8 games |