USCF player statistics
Corbett, Ian D
- Gender
- Male
- US Chess reported rank
- #31,481 national · #1,194 in state
- Floor
- Regular 113
- Rated games
- Regular 5
US Chess record as of Sep 18, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- —
- No gain between published updates yet
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- —
- No consecutive gains yet
- Current run
- 4 updates
- Unchanged since Jul 2026
- Typical move
- ±0
- Mean absolute change; spread ±0
Regular rating in context
United States
#39,376of 83,032 rated members · higher than 52.5%
43,613 lower · 44 same rating · 39,375 higher · ties share a rank
North Carolina
#1,455of 2,787 rated members · higher than 47.7%
1,331 lower · 2 same rating · 1,454 higher · ties share a rank
Where this rating sits · United States
83,032 rated members in 50-point bands · median 850–899 · 8,677 within 100 points of 899 (this player included)
850–899: 2,146 members (2.5%) · highlighted band is the player’s · dashed line is the target
52.5% below 900 (43,657 of 83,032; 52.5% below 899)
Percentile over time · United States
52.5% higher than · Nov 2026 · rank #39,376 of 83,032
Since Jul 2026
-0.8 pts
How these comparisons are calculated
Chess67 calculations from the Nov 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 |
|---|---|
| Nov 2026 | 899 Pno change · 5 games |
| Oct 2026 | 899 Pno change · 5 games |
| Sep 2026 | 899 Pno change · 5 games |
| Aug 2026 | 899 Pno change · 5 games |
| Jul 2026 | 899 P5 games |
| Jun 2026 | — |