USCF player statistics
Muthu, William Sebastian
Official US Chess record- FIDE
- FIDE 0
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-9 Quick vs Regular
No national baseline for this rating band yet.
-17 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
- +1
- Feb 2026 to Mar 2026
- Biggest drop
- -1
- Jan 2026 to Feb 2026
- Longest rise
- 1 update
- +1 from Feb 2026 to Mar 2026
- Current run
- 6 updates
- Unchanged since Mar 2026
- Typical move
- ±0
- Mean absolute change; spread ±0.5
Regular rating in context
United States
25.7%of the comparison population has a lower rating.
21,556 lower · 47 same rating · 62,032 higher
Pennsylvania
21.4%of the comparison population has a lower rating.
567 lower · 2 same rating · 2,070 higher
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,992 within 100 points of 441
400–449: 2,735 members (3.2%) · highlighted band is the player’s · dashed line is the target
26.3% below 450 (22,043 of 83,635; 25.7% below 441)
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: it is a rating comparison, not a prediction of future rank. This player is outside that comparison population; no membership rank is assigned.
Published ratings by month
P marks a provisional rating; the small figure is the change since the previous published observation.
| Month | Regular | Quick | Online Regular |
|---|---|---|---|
| Sep 2026 | 441no change | 432no change | 424 Pno change · 23 games |
| Aug 2026 | 441no change | 432no change | 424 Pno change · 23 games |
| Jul 2026 | 441no change | 432no change | 424 Pno change · 23 games |
| Jun 2026 | 441no change | 432no change | 424 Pno change · 23 games |
| May 2026 | 441no change | 432no change | 424 Pno change · 23 games |
| Apr 2026 | 441no change | 432no change | 424 Pno change · 23 games |
| Mar 2026 | 441+1 | 432no change | 424 Pno change · 23 games |
| Feb 2026 | 440-1 | 432no change | 424 Pno change · 23 games |
| Jan 2026 | 441no change | 432no change | 424 Pno change · 23 games |
| Dec 2025 | 441 | 432 | 424 P23 games |