USCF player statistics
Viadiu-Ilarraza, Hector
Official US Chess record- FIDE
- FIDE 39905020
- US Chess reported rank
- #3,406 national · #224 in state
- Floor
- Regular 1,800 · Blitz 136
- Rated games
- Quick 15 · Blitz 18
US Chess record as of Sep 15, 2026
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-225 Quick vs Regular (provisional)
No national baseline for this rating band yet.
-301 Blitz vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +54
- Feb 2026 to Mar 2026
- Biggest drop
- -24
- Jun 2026 to Jul 2026
- Longest rise
- 2 updates
- +80 from Jan 2026 to Mar 2026
- Current run
- 2 updates
- Unchanged since Jul 2026
- Typical move
- ±12
- Mean absolute change; spread ±21.9
Regular rating in context
United States
#4,339of 83,635 rated members · higher than 94.7%
79,282 lower · 15 same rating · 4,338 higher · ties share a rank
California
#624of 9,051 rated members · higher than 93%
8,425 lower · 3 same rating · 623 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 4,076 within 100 points of 1,933 (this player included)
1,900–1,949: 1,134 members (1.3%) · highlighted band is the player’s · dashed line is the target
95.1% below 1,950 (79,593 of 83,635; 94.7% below 1,933)
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 | 1,933no change | 1,708 Pno change · 15 games | 1,632 Pno change · 18 games |
| Aug 2026 | 1,933no change | 1,708 Pno change · 15 games | 1,632 Pno change · 18 games |
| Jul 2026 | 1,933-24 | 1,708 Pno change · 15 games | 1,632 Pno change · 18 games |
| Jun 2026 | 1,957-1 | 1,708 Pno change · 15 games | 1,632 Pno change · 18 games |
| May 2026 | 1,958-1 | 1,708 Pno change · 15 games | 1,632 Pno change · 18 games |
| Apr 2026 | 1,959no change | 1,708 Pno change · 15 games | 1,632 P+45 · 18 games |
| Mar 2026 | 1,959+54 | 1,708 Pno change · 15 games | 1,587 Pno change · 9 games |
| Feb 2026 | 1,905+26 | 1,708 Pno change · 15 games | 1,587 Pno change · 9 games |
| Jan 2026 | 1,879no change | 1,708 Pno change · 15 games | 1,587 Pno change · 9 games |
| Dec 2025 | 1,879 | 1,708 P15 games | 1,587 P9 games |