USCF player statistics
Kostiw, Eli
- Biggest rank climb · #5 in Tennessee (Quick)
- Biggest rank climb · #5 in Tennessee (Regular)
- Fastest rising · #2 in Tennessee (Quick)
- Fastest rising · #2 in Tennessee (Regular)
- Gender
- Male
- US Chess reported rank
- #47,659 national · #656 in state
- Floor
- Regular 142 · Quick 150
- Rated games
- Regular 21
US Chess record as of Sep 17, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +310
- Feb 2026 to Mar 2026
- Biggest drop
- -4
- Mar 2026 to Apr 2026
- Longest rise
- 3 updates
- +234 from Aug 2026 to Nov 2026
- Updates that moved
- 6 of 11
- Latest +193, Oct 2026 to Nov 2026
- Typical move
- ±59
- Mean absolute change; spread ±104.1
Regular rating in context
United States
#44,838of 83,032 rated members · higher than 45.9%
38,152 lower · 43 same rating · 44,837 higher · ties share a rank
Tennessee
#662of 1,172 rated members · higher than 43.4%
509 lower · 2 same rating · 661 higher · ties share a rank
Where this rating sits · United States
83,032 rated members in 50-point bands · median 850–899 · 9,352 within 100 points of 777 (this player included)
750–799: 2,329 members (2.8%) · highlighted band is the player’s · dashed line is the target
47.2% below 800 (39,223 of 83,032; 45.9% below 777)
Percentile over time · United States
45.9% higher than · Nov 2026 · rank #44,838 of 83,032
Since Dec 2025
+38.8 pts
How these comparisons are calculated
Chess67 calculations from the Nov 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 |
|---|---|---|
| Nov 2026 | 777+193 | 801+185 |
| Oct 2026 | 584+40 | 616+23 |
| Sep 2026 | 544 P+1 · 21 games | 593no change |
| Aug 2026 | 543 Pno change · 21 games | 593no change |
| Jul 2026 | 543 Pno change · 21 games | 593no change |
| Jun 2026 | 543 Pno change · 21 games | 593no change |
| May 2026 | 543 Pno change · 21 games | 593no change |
| Apr 2026 | 543 P-4 · 21 games | 593-11 |
| Mar 2026 | 547 P+310 · 16 games | 604+273 |
| Feb 2026 | 237 Pno change · 16 games | 331no change |
| Jan 2026 | 237 P+106 · 13 games | 331 P+89 · 24 games |
| Dec 2025 | 131 P9 games | 242 P20 games |