USCF player statistics
Litthi, Clark
- Biggest rank climb · #11 in Massachusetts (Quick)
- Biggest rank climb · #12 in Massachusetts (Regular)
- Gender
- Male
- US Chess reported rank
- #60,224 national · #1,253 in state
- Floor
- Regular 150 · Quick 150
- Rated games
- Regular 24 · Quick 24
US Chess record as of Sep 18, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +201
- Oct 2026 to Nov 2026
- Biggest drop
- -20
- Mar 2026 to Apr 2026
- Longest rise
- 1 update
- +201 from Oct 2026 to Nov 2026
- Updates that moved
- 5 of 11
- Latest +201, Oct 2026 to Nov 2026
- Typical move
- ±31
- Mean absolute change; spread ±64.7
Regular rating in context
United States
#58,696of 83,032 rated members · higher than 29.2%
24,274 lower · 63 same rating · 58,695 higher · ties share a rank
Massachusetts
#1,371of 1,698 rated members · higher than 19.1%
326 lower · 2 same rating · 1,370 higher · ties share a rank
Where this rating sits · United States
83,032 rated members in 50-point bands · median 850–899 · 10,722 within 100 points of 501 (this player included)
500–549: 2,672 members (3.2%) · highlighted band is the player’s · dashed line is the target
32.3% below 550 (26,897 of 83,032; 29.2% below 501)
Percentile over time · United States
29.2% higher than · Nov 2026 · rank #58,696 of 83,032
Since Dec 2025
+18.1 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 |
|---|---|---|
| Nov 2026 | 501+201 | 496+197 |
| Oct 2026 | 300 Pno change · 24 games | 299 Pno change · 24 games |
| Sep 2026 | 300 Pno change · 24 games | 299 Pno change · 24 games |
| Aug 2026 | 300 Pno change · 24 games | 299 Pno change · 24 games |
| Jul 2026 | 300 Pno change · 24 games | 299 Pno change · 24 games |
| Jun 2026 | 300 Pno change · 24 games | 299 Pno change · 24 games |
| May 2026 | 300 P+27 · 24 games | 299 P+30 · 24 games |
| Apr 2026 | 273 P-20 · 16 games | 269 P-20 · 16 games |
| Mar 2026 | 293 P+92 · 8 games | 289 P+88 · 8 games |
| Feb 2026 | 201 P-1 · 8 games | 201 P-1 · 8 games |
| Jan 2026 | 202 Pno change · 4 games | 202 Pno change · 4 games |
| Dec 2025 | 202 P4 games | 202 P4 games |