USCF player statistics

Pierce, Heidi Marie

USCF 16427156IowaUpdated: Oct 2026

Official US Chess record

Biggest rank climb · #67 in Iowa (Quick)

Gender: Female
FIDE: FIDE 30965578
TD: Club
Floor: Regular 100 · Quick 100 · Blitz 101
Rated games: Blitz 9

US Chess record as of Sep 15, 2026

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Regular rating

4120 since Sep 2026

Published rating · Oct 2026 · 5 published updates since Jun 2026

Oct 2026412 Regular

Compare format

Jun 2026Oct 2026

5 updates in this window · 0 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity

Compare with another playerOverlays their published ratings on the chart; the link keeps the comparison.

Other formats against Regular

+100 Quick vs Regular
Typical for 400–499 regular players: -1 (middle half -9 to +7, 1,658 established members). This gap is above the typical range.
+34 Blitz vs Regular (provisional)
Typical for 400–499 regular players: -81 (middle half -170 to +2, 51 established members). This gap is above the typical range.

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 Jun 2026
Typical move: ±0; Mean absolute change; spread ±0

Regular rating in context

Oct 2026 update

United States

#63,084of 82,596 rated members · higher than 23.5%

19,458 lower · 55 same rating · 63,083 higher · ties share a rank

Iowa

#299of 350 rated members · higher than 14.5%

51 lower · 1 same rating · 298 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 10,728 within 100 points of 412 (this player included)

Player · 412

01,4502,900

400–449: 2,679 members (3.2%) · highlighted band is the player’s · dashed line is the target

Target 450

26% below 450 (21,532 of 82,596; 23.5% below 412)

Percentile over time · United States

23.5% higher than · Oct 2026 · rank #63,084 of 82,596

Since Jun 2026
-0.4 pts

Jun 2026Oct 2026

Each month against that month’s active pool, so pool growth and rating drift both count.

How these comparisons are calculated

Chess67 calculations from the Oct 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.

United States statistics Iowa statistics

Published ratings by month

P marks a provisional rating; the small figure is the change since the previous published observation.

Monthly USCF ratings for Pierce, Heidi Marie
Month	Regular	Quick	Blitz
Oct 2026	412no change	512no change	446 Pno change · 9 games
Sep 2026	412no change	512no change	446 Pno change · 9 games
Aug 2026	412no change	512no change	446 Pno change · 9 games
Jul 2026	412no change	512no change	446 Pno change · 9 games
Jun 2026	412	512	446 P9 games

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