USCF player statistics
Guevara, Oliver
Official US Chess recordRegular 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
- +88
- Dec 2025 to Jan 2026
- Biggest drop
- -106
- Apr 2026 to May 2026
- Longest rise
- 1 update
- +88 from Dec 2025 to Jan 2026
- Current run
- 4 updates
- Unchanged since May 2026
- Typical move
- ±27
- Mean absolute change; spread ±51.2
Regular rating in context
United States
#38,398of 83,635 rated members · higher than 54%
45,196 lower · 42 same rating · 38,397 higher · ties share a rank
Texas
#3,612of 10,810 rated members · higher than 66.5%
7,193 lower · 6 same rating · 3,611 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 8,568 within 100 points of 915 (this player included)
900–949: 2,108 members (2.5%) · highlighted band is the player’s · dashed line is the target
55.7% below 950 (46,667 of 83,635; 54% below 915)
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 | Regular | Quick |
|---|---|---|
| Sep 2026 | 915no change | 911no change |
| Aug 2026 | 915no change | 911no change |
| Jul 2026 | 915no change | 911no change |
| Jun 2026 | 915no change | 911no change |
| May 2026 | 915-106 | 911-109 |
| Apr 2026 | 1,021no change | 1,020no change |
| Mar 2026 | 1,021no change | 1,020+1 |
| Feb 2026 | 1,021-50 | 1,019-52 |
| Jan 2026 | 1,071+88 | 1,071+69 |
| Dec 2025 | 983 | 1,002 |