USCF player statistics
Castro Arizaga, Leonardo
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
+2 Quick vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +30
- Apr 2026 to May 2026
- Biggest drop
- -1
- Mar 2026 to Apr 2026
- Longest rise
- 1 update
- +30 from Apr 2026 to May 2026
- Current run
- 4 updates
- Unchanged since May 2026
- Typical move
- ±5
- Mean absolute change; spread ±10.2
Regular rating in context
United States
12.4%of the comparison population has a lower rating.
10,419 lower · 51 same rating · 73,165 higher
California
10.5%of the comparison population has a lower rating.
956 lower · 7 same rating · 8,088 higher
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 9,918 within 100 points of 230
200–249: 2,417 members (2.8%) · highlighted band is the player’s · dashed line is the target
13.6% below 250 (11,415 of 83,635; 12.4% below 230)
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 | 230 Pno change · 17 games | 232 Pno change · 17 games |
| Aug 2026 | 230 Pno change · 17 games | 232 P+1 · 17 games |
| Jul 2026 | 230 Pno change · 17 games | 231 Pno change · 17 games |
| Jun 2026 | 230 Pno change · 17 games | 231 Pno change · 17 games |
| May 2026 | 230 P+30 · 17 games | 231 P+28 · 17 games |
| Apr 2026 | 200 P-1 · 13 games | 203 Pno change · 13 games |
| Mar 2026 | 201 P+10 · 13 games | 203 P+12 · 13 games |
| Feb 2026 | 191 Pno change · 13 games | 191 Pno change · 13 games |
| Jan 2026 | 191 Pno change · 10 games | 191 Pno change · 10 games |
| Dec 2025 | 191 P10 games | 191 P10 games |