USCF player statistics
Fang, Ivan Duoen
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-14 Quick vs Regular
No national baseline for this rating band yet.
-18 Blitz vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +82
- Apr 2026 to May 2026
- Biggest drop
- -5
- Dec 2025 to Jan 2026
- Longest rise
- 4 updates
- +180 from Mar 2026 to Jul 2026
- Current run
- 1 update
- Unchanged since Aug 2026
- Typical move
- ±21
- Mean absolute change; spread ±33.1
Regular rating in context
United States
#41,266of 83,635 rated members · higher than 50.6%
42,325 lower · 45 same rating · 41,265 higher · ties share a rank
California
#4,765of 9,051 rated members · higher than 47.3%
4,283 lower · 4 same rating · 4,764 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 8,989 within 100 points of 849 (this player included)
800–849: 2,310 members (2.7%) · highlighted band is the player’s · dashed line is the target
50.6% below 850 (42,370 of 83,635; 50.6% below 849)
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 | Blitz |
|---|---|---|---|
| Sep 2026 | 849no change | 835-1 | 831 Pno change · 20 games |
| Aug 2026 | 849-1 | 836-1 | 831 P-2 · 20 games |
| Jul 2026 | 850+20 | 837+34 | 833 P20 games |
| Jun 2026 | 830+8 | 803+5 | — |
| May 2026 | 822+82 | 798+72 | — |
| Apr 2026 | 740+70 | 726+70 | — |
| Mar 2026 | 670no change | 656no change | — |
| Feb 2026 | 670no change | 656no change | — |
| Jan 2026 | 670-5 | 656+7 | — |
| Dec 2025 | 675 | 649 | — |