USCF player statistics
Seong, Woojin
- Biggest rank climb · #40 in Michigan (Blitz)
- Biggest rank climb · #72 in Michigan (Quick)
- Biggest rank climb · #57 in Michigan (Regular)
- Fastest rising · #55 in Michigan (Quick)
- Fastest rising · #20 in Michigan (Regular)
- Gender
- Male
- FIDE
- FIDE 566019206
- US Chess reported rank
- #6,198 national · #126 in state
- Floor
- Regular 1,700 · Quick 1,200 · Blitz 119
- Rated games
- Blitz 18
US Chess record as of Sep 17, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +186
- May 2026 to Jun 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 3 updates
- +347 from Jul 2026 to Oct 2026
- Updates that moved
- 6 of 10
- Latest +138, Sep 2026 to Oct 2026
- Typical move
- ±72
- Mean absolute change; spread ±75.6
Regular rating in context
United States
#4,613of 82,596 rated members · higher than 94.3%
77,962 lower · 22 same rating · 4,612 higher · ties share a rank
Michigan
#113of 1,920 rated members · higher than 94.1%
1,807 lower · 1 same rating · 112 higher · ties share a rank
Where this rating sits · United States
82,596 rated members in 50-point bands · median 800–849 · 4,218 within 100 points of 1,920 (this player included)
1,900–1,949: 1,142 members (1.3%) · highlighted band is the player’s · dashed line is the target
95% below 1,950 (78,534 of 82,596; 94.3% below 1,920)
Percentile over time · United States
94.3% higher than · Oct 2026 · rank #4,613 of 82,596
Since Dec 2025
+27.3 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 | Blitz |
|---|---|---|---|
| Oct 2026 | 1,920+138 | 1,447+48 | 1,526 Pno change · 18 games |
| Sep 2026 | 1,782+134 | 1,399+116 | 1,526 Pno change · 18 games |
| Aug 2026 | 1,648+75 | 1,283no change | 1,526 P18 games |
| Jul 2026 | 1,573no change | 1,283no change | — |
| Jun 2026 | 1,573+186 | 1,283no change | — |
| May 2026 | 1,387no change | 1,283no change | — |
| Apr 2026 | 1,387+157 | 1,283+172 | — |
| Mar 2026 | 1,230no change | 1,111 Pno change · 24 games | — |
| Feb 2026 | 1,230+25 | 1,111 P+62 · 24 games | — |
| Jan 2026 | 1,205no change | 1,049 Pno change · 20 games | — |
| Dec 2025 | 1,205 | 1,049 P20 games | — |