USCF player statistics
Grissim, Kolby
Official US Chess record- FIDE
- FIDE 0
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
+4 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- —
- No gain between published updates yet
- Biggest drop
- -60
- May 2026 to Jun 2026
- Longest rise
- —
- No consecutive gains yet
- Current run
- 3 updates
- Unchanged since Jun 2026
- Typical move
- ±9
- Mean absolute change; spread ±20.4
Regular rating in context
United States
21.4%of the comparison population has a lower rating.
17,910 lower · 64 same rating · 65,661 higher
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,747 within 100 points of 374
350–399: 2,689 members (3.2%) · highlighted band is the player’s · dashed line is the target
23% below 400 (19,308 of 83,635; 21.4% below 374)
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 |
|---|---|---|
| Sep 2026 | 374no change | 378+1 |
| Aug 2026 | 374no change | 377no change |
| Jul 2026 | 374no change | 377no change |
| Jun 2026 | 374-60 | 377-60 |
| May 2026 | 434no change | 437no change |
| Apr 2026 | 434-2 | 437+3 |
| Mar 2026 | 436no change | 434no change |
| Feb 2026 | 436-23 | 434-21 |
| Jan 2026 | 459no change | 455no change |
| Dec 2025 | 459 | 455 |