USCF player statistics
Petrus, Ramona
- Gender
- Female
- US Chess reported rank
- #35,742 national · #4,063 in state
- Floor
- Regular 150 · Quick 150
US Chess record as of Sep 17, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +247
- Mar 2026 to Apr 2026
- Biggest drop
- -114
- Sep 2026 to Oct 2026
- Longest rise
- 5 updates
- +642 from Feb 2026 to Jul 2026
- Updates that moved
- 9 of 10
- Latest -114, Sep 2026 to Oct 2026
- Typical move
- ±81
- Mean absolute change; spread ±105.3
Regular rating in context
United States
#48,941of 82,596 rated members · higher than 40.6%
33,606 lower · 50 same rating · 48,940 higher · ties share a rank
New York
#5,148of 9,044 rated members · higher than 43%
3,894 lower · 3 same rating · 5,147 higher · ties share a rank
Where this rating sits · United States
82,596 rated members in 50-point bands · median 800–849 · 9,821 within 100 points of 682 (this player included)
650–699: 2,456 members (2.9%) · highlighted band is the player’s · dashed line is the target
41.8% below 700 (34,528 of 82,596; 40.6% below 682)
Percentile over time · United States
40.6% higher than · Oct 2026 · rank #48,941 of 82,596
Since Dec 2025
+29.3 pts
How these comparisons are calculated
Chess67 calculations from the Oct 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 |
|---|---|---|
| Oct 2026 | 682-114 | 662-114 |
| Sep 2026 | 796-9 | 776-8 |
| Aug 2026 | 805-28 | 784-20 |
| Jul 2026 | 833+165 | 804+146 |
| Jun 2026 | 668+57 | 658+46 |
| May 2026 | 611+117 | 612+105 |
| Apr 2026 | 494+247 | 507 P+264 · 23 games |
| Mar 2026 | 247 P+56 · 15 games | 243 P+61 · 15 games |
| Feb 2026 | 191 P-15 · 15 games | 182 P-13 · 15 games |
| Jan 2026 | 206 Pno change · 9 games | 195 P-1 · 9 games |
| Dec 2025 | 206 P9 games | 196 P9 games |