USCF player statistics
Ma, Iris
- Gender
- Female
- US Chess reported rank
- #65,005 national · #3,792 in state
- Floor
- Regular 120 · Quick 135
- Rated games
- Regular 10 · Quick 14
US Chess record as of Sep 18, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +297
- Oct 2026 to Nov 2026
- Biggest drop
- -135
- Jun 2026 to Jul 2026
- Longest rise
- 1 update
- +297 from Oct 2026 to Nov 2026
- Updates that moved
- 4 of 6
- Latest +297, Oct 2026 to Nov 2026
- Typical move
- ±78
- Mean absolute change; spread ±144.7
Regular rating in context
United States
#60,559of 83,032 rated members · higher than 27%
22,429 lower · 45 same rating · 60,558 higher · ties share a rank
California
#7,023of 9,288 rated members · higher than 24.3%
2,260 lower · 6 same rating · 7,022 higher · ties share a rank
Where this rating sits · United States
83,032 rated members in 50-point bands · median 850–899 · 10,803 within 100 points of 466 (this player included)
450–499: 2,670 members (3.2%) · highlighted band is the player’s · dashed line is the target
29.1% below 500 (24,225 of 83,032; 27% below 466)
Percentile over time · United States
27% higher than · Nov 2026 · rank #60,559 of 83,032
Since May 2026
+8.3 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 | Quick |
|---|---|---|
| Nov 2026 | 466 P+297 · 19 games | 559 P+227 · 23 games |
| Oct 2026 | 169 P-31 · 14 games | 332 P-86 · 18 games |
| Sep 2026 | 200 Pno change · 10 games | 418 Pno change · 14 games |
| Aug 2026 | 200 P-2 · 10 games | 418 P-67 · 14 games |
| Jul 2026 | 202 P-135 · 7 games | 485 P-160 · 11 games |
| Jun 2026 | 337 Pno change · 4 games | 645 P+292 · 8 games |
| May 2026 | 337 P4 games | 353 P4 games |
| Apr 2026 | — | — |