USCF player statistics
Koridze, Tamara
- Gender
- Female
- US Chess reported rank
- #4,786 national · #177 in state
- Floor
- Regular 1,700 · Quick 1,500 · Blitz 100
- Rated games
- Blitz 14
US Chess record as of Sep 15, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- —
- No gain between published updates yet
- Biggest drop
- -9
- Jul 2026 to Aug 2026
- Longest rise
- —
- No consecutive gains yet
- Current run
- 2 updates
- Unchanged since Aug 2026
- Typical move
- ±1
- Mean absolute change; spread ±2.8
Regular rating in context
United States
#6,245of 82,596 rated members · higher than 92.4%
76,326 lower · 26 same rating · 6,244 higher · ties share a rank
Pennsylvania
#230of 2,576 rated members · higher than 91%
2,345 lower · 2 same rating · 229 higher · ties share a rank
Where this rating sits · United States
82,596 rated members in 50-point bands · median 800–849 · 4,993 within 100 points of 1,850 (this player included)
1,850–1,899: 1,066 members (1.2%) · highlighted band is the player’s · dashed line is the target
93.6% below 1,900 (77,392 of 82,596; 92.4% below 1,850)
Percentile over time · United States
92.4% higher than · Oct 2026 · rank #6,245 of 82,596
Since Dec 2025
-0.1 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 | Blitz |
|---|---|---|---|
| Oct 2026 | 1,850no change | 1,743no change | 1,837 Pno change · 14 games |
| Sep 2026 | 1,850no change | 1,743no change | 1,837 Pno change · 14 games |
| Aug 2026 | 1,850-9 | 1,743-7 | 1,837 Pno change · 14 games |
| Jul 2026 | 1,859no change | 1,750no change | 1,837 Pno change · 14 games |
| Jun 2026 | 1,859no change | 1,750no change | 1,837 Pno change · 14 games |
| May 2026 | 1,859no change | 1,750no change | 1,837 Pno change · 14 games |
| Apr 2026 | 1,859no change | 1,750no change | 1,837 Pno change · 14 games |
| Mar 2026 | 1,859no change | 1,750no change | 1,837 Pno change · 14 games |
| Feb 2026 | 1,859no change | 1,750no change | 1,837 Pno change · 14 games |
| Jan 2026 | 1,859no change | 1,750no change | 1,837 Pno change · 14 games |
| Dec 2025 | 1,859 | 1,750 | 1,837 P14 games |