USCF player statistics
Onyema, Sophia
Official US Chess record- FIDE
- FIDE 0
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-8 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +79
- May 2026 to Jun 2026
- Biggest drop
- -54
- Feb 2026 to Mar 2026
- Longest rise
- 1 update
- +79 from May 2026 to Jun 2026
- Current run
- 1 update
- Unchanged since Aug 2026
- Typical move
- ±32
- Mean absolute change; spread ±42.7
Regular rating in context
United States
#54,561of 83,635 rated members · higher than 34.7%
29,026 lower · 49 same rating · 54,560 higher · ties share a rank
New York
#5,920of 9,415 rated members · higher than 37%
3,490 lower · 6 same rating · 5,919 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,663 within 100 points of 578 (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; 34.7% below 578)
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 | 578no change | 570no change |
| Aug 2026 | 578+29 | 570+23 |
| Jul 2026 | 549-23 | 547-9 |
| Jun 2026 | 572+79 | 556+86 |
| May 2026 | 493-25 | 470-34 |
| Apr 2026 | 518no change | 504no change |
| Mar 2026 | 518-54 | 504-55 |
| Feb 2026 | 572+50 | 559+42 |
| Jan 2026 | 522 P-32 · 17 games | 517 P-35 · 17 games |
| Dec 2025 | 554 P13 games | 552 P13 games |