USCF player statistics
Neilson, Naoko
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 8 published updates since Feb 2026
Other formats against Regular
-20 Quick vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +16
- Apr 2026 to May 2026
- Biggest drop
- -9
- Feb 2026 to Mar 2026
- Longest rise
- 2 updates
- +17 from Apr 2026 to Jun 2026
- Current run
- 3 updates
- Unchanged since Jun 2026
- Typical move
- ±4
- Mean absolute change; spread ±7.4
Regular rating in context
United States
#55,028of 83,635 rated members · higher than 34.1%
28,567 lower · 41 same rating · 55,027 higher · ties share a rank
Pennsylvania
#1,875of 2,639 rated members · higher than 28.8%
762 lower · 3 same rating · 1,874 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,777 within 100 points of 569 (this player included)
550–599: 2,691 members (3.2%) · highlighted band is the player’s · dashed line is the target
36.1% below 600 (30,195 of 83,635; 34.1% below 569)
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 | 569 Pno change · 19 games | 549 Pno change · 19 games |
| Aug 2026 | 569 Pno change · 19 games | 549 Pno change · 19 games |
| Jul 2026 | 569 Pno change · 19 games | 549 Pno change · 19 games |
| Jun 2026 | 569 P+1 · 19 games | 549 P+7 · 19 games |
| May 2026 | 568 P+16 · 16 games | 542 P+23 · 16 games |
| Apr 2026 | 552 Pno change · 13 games | 519 P-1 · 13 games |
| Mar 2026 | 552 P-9 · 13 games | 520 P-42 · 13 games |
| Feb 2026 | 561 P13 games | 562 P13 games |