USCF player statistics
Choi, Jiwon Lily
- Gender
- Female
- US Chess reported rank
- #60,367 national · #248 in state
- Floor
- Regular 150 · Quick 150 · Blitz 113
- Rated games
- Blitz 22
US Chess record as of Sep 17, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +35
- Mar 2026 to Apr 2026
- Biggest drop
- -56
- Jun 2026 to Jul 2026
- Longest rise
- 1 update
- +35 from Mar 2026 to Apr 2026
- Current run
- 3 updates
- Unchanged since Jul 2026
- Typical move
- ±17
- Mean absolute change; spread ±27.3
Regular rating in context
United States
#69,085of 82,596 rated members · higher than 16.3%
13,469 lower · 43 same rating · 69,084 higher · ties share a rank
Hawaii
#315of 394 rated members · higher than 20%
79 lower · 1 same rating · 314 higher · ties share a rank
Where this rating sits · United States
82,596 rated members in 50-point bands · median 800–849 · 10,077 within 100 points of 297 (this player included)
250–299: 2,470 members (2.9%) · highlighted band is the player’s · dashed line is the target
16.4% below 300 (13,612 of 82,596; 16.3% below 297)
Percentile over time · United States
16.3% higher than · Oct 2026 · rank #69,085 of 82,596
Since Dec 2025
-6.7 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 | 297no change | 233no change | 323 Pno change · 22 games |
| Sep 2026 | 297no change | 233no change | 323 Pno change · 22 games |
| Aug 2026 | 297no change | 233no change | 323 Pno change · 22 games |
| Jul 2026 | 297-56 | 233-123 | 323 P22 games |
| Jun 2026 | 353no change | 356no change | — |
| May 2026 | 353-27 | 356-27 | — |
| Apr 2026 | 380 P+35 · 21 games | 383 P+37 · 21 games | — |
| Mar 2026 | 345 Pno change · 10 games | 346 Pno change · 10 games | — |
| Feb 2026 | 345 P-51 · 10 games | 346 P-49 · 10 games | — |
| Jan 2026 | 396 Pno change · 5 games | 395 P-1 · 5 games | — |
| Dec 2025 | 396 P5 games | 396 P5 games | — |