USCF player statistics
Jeruchimowitz, Ruby Estela
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
+3 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +160
- Jan 2026 to Feb 2026
- Biggest drop
- -98
- Feb 2026 to Mar 2026
- Longest rise
- 2 updates
- +132 from Mar 2026 to May 2026
- Current run
- 2 updates
- Unchanged since Jul 2026
- Typical move
- ±53
- Mean absolute change; spread ±75.7
Regular rating in context
United States
#54,506of 83,635 rated members · higher than 34.7%
29,075 lower · 55 same rating · 54,505 higher · ties share a rank
New York
#5,910of 9,415 rated members · higher than 37.1%
3,496 lower · 10 same rating · 5,909 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,659 within 100 points of 579 (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 579)
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 | 579no change | 582no change |
| Aug 2026 | 579no change | 582no change |
| Jul 2026 | 579+21 | 582+20 |
| Jun 2026 | 558-62 | 562+12 |
| May 2026 | 620+56 | 550 P+71 · 23 games |
| Apr 2026 | 564+76 | 479 Pno change · 21 games |
| Mar 2026 | 488 P-98 · 21 games | 479 P-96 · 21 games |
| Feb 2026 | 586 P+160 · 21 games | 575 P+155 · 21 games |
| Jan 2026 | 426 Pno change · 14 games | 420 Pno change · 14 games |
| Dec 2025 | 426 P14 games | 420 P14 games |