USCF player statistics
Zhang, Osborn
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-29 Quick vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +65
- Dec 2025 to Jan 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 1 update
- +65 from Dec 2025 to Jan 2026
- Current run
- 8 updates
- Unchanged since Jan 2026
- Typical move
- ±7
- Mean absolute change; spread ±21.7
Regular rating in context
United States
#61,081of 83,635 rated members · higher than 26.8%
22,496 lower · 59 same rating · 61,080 higher · ties share a rank
California
#6,870of 9,051 rated members · higher than 24%
2,176 lower · 6 same rating · 6,869 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,947 within 100 points of 458 (this player included)
450–499: 2,720 members (3.2%) · highlighted band is the player’s · dashed line is the target
29.6% below 500 (24,763 of 83,635; 26.8% below 458)
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 | 458 Pno change · 10 games | 429 Pno change · 10 games |
| Aug 2026 | 458 Pno change · 10 games | 429 Pno change · 10 games |
| Jul 2026 | 458 Pno change · 10 games | 429 Pno change · 10 games |
| Jun 2026 | 458 Pno change · 10 games | 429 Pno change · 10 games |
| May 2026 | 458 Pno change · 10 games | 429 Pno change · 10 games |
| Apr 2026 | 458 Pno change · 10 games | 429 Pno change · 10 games |
| Mar 2026 | 458 Pno change · 10 games | 429 Pno change · 10 games |
| Feb 2026 | 458 Pno change · 10 games | 429 Pno change · 10 games |
| Jan 2026 | 458 P+65 · 10 games | 429 P+59 · 10 games |
| Dec 2025 | 393 P10 games | 370 P10 games |