USCF player statistics
Schaffer, Christopher
- Gender
- Male
- US Chess reported rank
- #42,357 national · #2,002 in state
- Floor
- Regular 109
- Rated games
- Regular 7
US Chess record as of Sep 15, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +57
- Sep 2026 to Oct 2026
- Biggest drop
- -31
- Oct 2026 to Nov 2026
- Longest rise
- 1 update
- +57 from Sep 2026 to Oct 2026
- Updates that moved
- 2 of 3
- Latest -31, Oct 2026 to Nov 2026
- Typical move
- ±29
- Mean absolute change; spread ±44.6
Regular rating in context
United States
#49,756of 83,032 rated members · higher than 40%
33,228 lower · 49 same rating · 49,755 higher · ties share a rank
Illinois
#2,359of 4,515 rated members · higher than 47.7%
2,154 lower · 3 same rating · 2,358 higher · ties share a rank
Where this rating sits · United States
83,032 rated members in 50-point bands · median 850–899 · 9,935 within 100 points of 674 (this player included)
650–699: 2,420 members (2.9%) · highlighted band is the player’s · dashed line is the target
41.5% below 700 (34,508 of 83,032; 40% below 674)
Percentile over time · United States
40% higher than · Nov 2026 · rank #49,756 of 83,032
Since Aug 2026
+0.8 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 | 674 P-31 · 18 games | 666 P15 games |
| Oct 2026 | 705 P+57 · 13 games | — |
| Sep 2026 | 648 Pno change · 7 games | — |
| Aug 2026 | 648 P7 games | — |