USCF player statistics
Ko, Sylvia
- Gender
- Female
- US Chess reported rank
- #60,523 national · #1,176 in state
- Floor
- Regular 125 · Quick 150
- Rated games
- Regular 8 · Quick 23
US Chess record as of Sep 18, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +38
- Sep 2026 to Oct 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 1 update
- +38 from Sep 2026 to Oct 2026
- Updates that moved
- 1 of 3
- Latest +38, Sep 2026 to Oct 2026
- Typical move
- ±13
- Mean absolute change; spread ±21.9
Regular rating in context
United States
#67,342of 82,596 rated members · higher than 18.4%
15,203 lower · 52 same rating · 67,341 higher · ties share a rank
Arizona
#1,385of 1,672 rated members · higher than 17.1%
286 lower · 2 same rating · 1,384 higher · ties share a rank
Where this rating sits · United States
82,596 rated members in 50-point bands · median 800–849 · 10,365 within 100 points of 332 (this player included)
300–349: 2,564 members (3.1%) · highlighted band is the player’s · dashed line is the target
19.5% below 350 (16,176 of 82,596; 18.4% below 332)
Percentile over time · United States
18.4% higher than · Oct 2026 · rank #67,342 of 82,596
Since Jul 2026
+1.9 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 | 332 P+38 · 17 games | 420-9 |
| Sep 2026 | 294 Pno change · 8 games | 429 Pno change · 23 games |
| Aug 2026 | 294 Pno change · 8 games | 429 P-83 · 23 games |
| Jul 2026 | 294 P8 games | 512 P+181 · 18 games |
| Jun 2026 | — | 331 Pno change · 10 games |
| May 2026 | — | 331 P10 games |