USCF player statistics
Anderson, Kolbie
Official US Chess recordBlitz rating
Provisional rating · Sep 2026 · 10 published updates since Dec 2025
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +171
- Feb 2026 to Mar 2026
- Biggest drop
- -85
- Jan 2026 to Feb 2026
- Longest rise
- 1 update
- +171 from Feb 2026 to Mar 2026
- Current run
- 4 updates
- Unchanged since May 2026
- Typical move
- ±30
- Mean absolute change; spread ±66.7
Blitz rating in context
United States
#17,446of 19,355 rated members · higher than 9.8%
1,904 lower · 6 same rating · 17,445 higher · ties share a rank
California
#2,191of 2,569 rated members · higher than 14.6%
377 lower · 2 same rating · 2,190 higher · ties share a rank
Where this rating sits · United States
19,355 rated members in 50-point bands · median 1,200–1,249 · 1,415 within 100 points of 503 (this player included)
500–549: 361 members (1.8%) · highlighted band is the player’s · dashed line is the target
11.6% below 550 (2,250 of 19,355; 9.8% below 503)
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 | Blitz |
|---|---|
| Sep 2026 | 503 Pno change · 15 games |
| Aug 2026 | 503 Pno change · 15 games |
| Jul 2026 | 503 Pno change · 15 games |
| Jun 2026 | 503 Pno change · 15 games |
| May 2026 | 503 P+18 · 15 games |
| Apr 2026 | 485 Pno change · 12 games |
| Mar 2026 | 485 P+171 · 12 games |
| Feb 2026 | 314 P-85 · 12 games |
| Jan 2026 | 399 Pno change · 6 games |
| Dec 2025 | 399 P6 games |