USCF player statistics
Zhou, Ethan
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-6 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
- Mar 2026 to Apr 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 1 update
- +65 from Mar 2026 to Apr 2026
- Current run
- 5 updates
- Unchanged since Apr 2026
- Typical move
- ±7
- Mean absolute change; spread ±21.7
Regular rating in context
United States
#72,817of 83,635 rated members · higher than 12.8%
10,763 lower · 56 same rating · 72,816 higher · ties share a rank
Pennsylvania
#2,341of 2,639 rated members · higher than 11.2%
298 lower · 1 same rating · 2,340 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 9,981 within 100 points of 237 (this player included)
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; 12.8% below 237)
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 | 237 Pno change · 12 games | 231 Pno change · 12 games |
| Aug 2026 | 237 Pno change · 12 games | 231 Pno change · 12 games |
| Jul 2026 | 237 Pno change · 12 games | 231 Pno change · 12 games |
| Jun 2026 | 237 Pno change · 12 games | 231 Pno change · 12 games |
| May 2026 | 237 Pno change · 12 games | 231 Pno change · 12 games |
| Apr 2026 | 237 P+65 · 12 games | 231 P+66 · 12 games |
| Mar 2026 | 172 Pno change · 5 games | 165 Pno change · 5 games |
| Feb 2026 | 172 Pno change · 5 games | 165 Pno change · 5 games |
| Jan 2026 | 172 Pno change · 5 games | 165 Pno change · 5 games |
| Dec 2025 | 172 P5 games | 165 P5 games |