USCF player statistics
Chin, Ian Weibo
Official US Chess record- FIDE
- FIDE 0
Regular rating
Provisional rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-121 Quick vs Regular (provisional)
No national baseline for this rating band yet.
-114 Online Regular vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +160
- Dec 2025 to Jan 2026
- Biggest drop
- -27
- May 2026 to Jun 2026
- Longest rise
- 1 update
- +160 from Dec 2025 to Jan 2026
- Current run
- 3 updates
- Unchanged since Jun 2026
- Typical move
- ±21
- Mean absolute change; spread ±55.2
Regular rating in context
United States
#69,792of 83,635 rated members · higher than 16.4%
13,794 lower · 50 same rating · 69,791 higher · ties share a rank
Washington
#1,889of 2,162 rated members · higher than 12.5%
272 lower · 2 same rating · 1,888 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,283 within 100 points of 297 (this player included)
250–299: 2,532 members (3%) · highlighted band is the player’s · dashed line is the target
16.6% below 300 (13,947 of 83,635; 16.4% below 297)
How these comparisons are calculated
Chess67 calculations from the Sep 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 | Online Regular |
|---|---|---|---|
| Sep 2026 | 297 Pno change · 15 games | 176 Pno change · 9 games | 183 Pno change · 12 games |
| Aug 2026 | 297 Pno change · 15 games | 176 Pno change · 9 games | 183 Pno change · 12 games |
| Jul 2026 | 297 Pno change · 15 games | 176 Pno change · 9 games | 183 Pno change · 12 games |
| Jun 2026 | 297 P-27 · 15 games | 176 P-30 · 9 games | 183 Pno change · 12 games |
| May 2026 | 324 Pno change · 11 games | 206 Pno change · 5 games | 183 Pno change · 12 games |
| Apr 2026 | 324 Pno change · 11 games | 206 Pno change · 5 games | 183 Pno change · 12 games |
| Mar 2026 | 324 Pno change · 11 games | 206 Pno change · 5 games | 183 Pno change · 12 games |
| Feb 2026 | 324 Pno change · 11 games | 206 Pno change · 5 games | 183 Pno change · 12 games |
| Jan 2026 | 324 P+160 · 11 games | 206 Pno change · 5 games | 183 Pno change · 12 games |
| Dec 2025 | 164 P5 games | 206 P5 games | 183 P12 games |