USCF player statistics
Zavolock, Dennis
- Gender
- Male
- Floor
- Blitz 123
- Rated games
- Blitz 15
US Chess record as of Sep 18, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +37
- Sep 2026 to Oct 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 1 update
- +37 from Sep 2026 to Oct 2026
- Current run
- 1 update
- Unchanged since Oct 2026
- Typical move
- ±19
- Mean absolute change; spread ±26.2
Blitz rating in context
United States
#11,347of 19,473 rated members · higher than 41.6%
8,116 lower · 11 same rating · 11,346 higher · ties share a rank
California
#1,417of 2,597 rated members · higher than 45.3%
1,179 lower · 2 same rating · 1,416 higher · ties share a rank
Where this rating sits · United States
19,473 rated members in 50-point bands · median 1,200–1,249 · 2,645 within 100 points of 1,113 (this player included)
1,100–1,149: 685 members (3.5%) · highlighted band is the player’s · dashed line is the target
44.3% below 1,150 (8,646 of 19,473; 41.6% below 1,113)
Percentile over time · United States
41.6% higher than · Nov 2026 · rank #11,347 of 19,473
Since Sep 2026
+2 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 | Blitz |
|---|---|
| Nov 2026 | 1,113 Pno change · 23 games |
| Oct 2026 | 1,113 P+37 · 23 games |
| Sep 2026 | 1,076 P15 games |
| Aug 2026 | — |