USCF player statistics
Biro, Maggie Miller
Official US Chess record- FIDE
- FIDE 0
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-20 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +14
- Feb 2026 to Mar 2026
- Biggest drop
- -2
- Jan 2026 to Feb 2026
- Longest rise
- 2 updates
- +25 from Feb 2026 to Apr 2026
- Current run
- 3 updates
- Unchanged since Jun 2026
- Typical move
- ±3
- Mean absolute change; spread ±5.7
Regular rating in context
United States
#54,778of 83,635 rated members · higher than 34.4%
28,808 lower · 50 same rating · 54,777 higher · ties share a rank
New York
#5,951of 9,415 rated members · higher than 36.7%
3,457 lower · 8 same rating · 5,950 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,715 within 100 points of 574 (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; 34.4% below 574)
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 | 574no change | 554no change |
| Aug 2026 | 574no change | 554no change |
| Jul 2026 | 574no change | 554no change |
| Jun 2026 | 574+1 | 554+2 |
| May 2026 | 573no change | 552no change |
| Apr 2026 | 573+11 | 552+12 |
| Mar 2026 | 562+14 | 540+18 |
| Feb 2026 | 548-2 | 522-2 |
| Jan 2026 | 550no change | 524no change |
| Dec 2025 | 550 | 524 |