USCF player statistics
Lin, Sean
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
0 Quick vs Regular
No national baseline for this rating band yet.
+77 Blitz vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +183
- Apr 2026 to May 2026
- Biggest drop
- -13
- May 2026 to Jun 2026
- Longest rise
- 1 update
- +183 from Apr 2026 to May 2026
- Current run
- 3 updates
- Unchanged since Jun 2026
- Typical move
- ±22
- Mean absolute change; spread ±61.7
Regular rating in context
United States
15.8%of the comparison population has a lower rating.
13,227 lower · 54 same rating · 70,354 higher
California
13.7%of the comparison population has a lower rating.
1,248 lower · 3 same rating · 7,800 higher
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,284 within 100 points of 286
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; 15.8% below 286)
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: it is a rating comparison, not a prediction of future rank. This player is outside that comparison population; no membership rank is assigned.
Published ratings by month
P marks a provisional rating; the small figure is the change since the previous published observation.
| Month | Regular | Quick | Blitz |
|---|---|---|---|
| Sep 2026 | 286no change | 286no change | 363 Pno change · 15 games |
| Aug 2026 | 286no change | 286no change | 363 Pno change · 15 games |
| Jul 2026 | 286no change | 286no change | 363 Pno change · 15 games |
| Jun 2026 | 286-13 | 286-12 | 363 Pno change · 15 games |
| May 2026 | 299 P+183 · 24 games | 298 P+182 · 24 games | 363 Pno change · 15 games |
| Apr 2026 | 116 Pno change · 10 games | 116 Pno change · 10 games | 363 P+1 · 15 games |
| Mar 2026 | 116 Pno change · 10 games | 116 Pno change · 10 games | 362 Pno change · 15 games |
| Feb 2026 | 116 Pno change · 10 games | 116 Pno change · 10 games | 362 P15 games |
| Jan 2026 | 116 Pno change · 10 games | 116 Pno change · 10 games | — |
| Dec 2025 | 116 P10 games | 116 P10 games | — |