USCF player statistics
Lan, William
Official US Chess record- FIDE
- FIDE 566009995
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-119 Quick vs Regular
No national baseline for this rating band yet.
-314 Blitz vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +70
- Jul 2026 to Aug 2026
- Biggest drop
- -35
- Jun 2026 to Jul 2026
- Longest rise
- 2 updates
- +82 from Apr 2026 to Jun 2026
- Updates that moved
- 9 of 9
- Latest -4, Aug 2026 to Sep 2026
- Typical move
- ±27
- Mean absolute change; spread ±36.8
Regular rating in context
United States
#7,246of 83,635 rated members · higher than 91.2%
76,354 lower · 36 same rating · 7,245 higher · ties share a rank
Pennsylvania
#290of 2,639 rated members · higher than 88.9%
2,348 lower · 2 same rating · 289 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 5,353 within 100 points of 1,810 (this player included)
1,800–1,849: 1,567 members (1.8%) · highlighted band is the player’s · dashed line is the target
92.5% below 1,850 (77,390 of 83,635; 91.2% below 1,810)
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 | 1,810-4 | 1,691+5 | 1,496no change |
| Aug 2026 | 1,814+70 | 1,686+66 | 1,496no change |
| Jul 2026 | 1,744-35 | 1,620-22 | 1,496+27 |
| Jun 2026 | 1,779+65 | 1,642+7 | 1,469 Pno change · 15 games |
| May 2026 | 1,714+17 | 1,635-6 | 1,469 Pno change · 15 games |
| Apr 2026 | 1,697-12 | 1,641+17 | 1,469 Pno change · 15 games |
| Mar 2026 | 1,709+7 | 1,624+44 | 1,469 Pno change · 15 games |
| Feb 2026 | 1,702-16 | 1,580-57 | 1,469 Pno change · 15 games |
| Jan 2026 | 1,718-18 | 1,637-29 | 1,469 Pno change · 15 games |
| Dec 2025 | 1,736 | 1,666 | 1,469 P15 games |