USCF player statistics

Seo, June

USCF 31758141New YorkUpdated: Oct 2026
Official US Chess record

Enter an 8-digit USCF ID, or at least 3 letters of a name. Similar names in NY appear first.

Gender
Female
US Chess reported rank
#34,668 national · #3,935 in state
Floor
Regular 150 · Quick 150

US Chess record as of Sep 17, 2026

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Rating format

Regular rating

8200 since Sep 2026

Published rating · Oct 2026 · 11 published updates since Dec 2025

Oct 2026820 Regular
Dec 2025: 692Jan 2026: 717Feb 2026: 729Mar 2026: 685Apr 2026: 616May 2026: 759Jun 2026: 713Jul 2026: 784Aug 2026: 897Sep 2026: 820Oct 2026: 820
Dec 2025Oct 2026
11 updates in this window · +128 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity
Overlays their published ratings on the chart; the link keeps the comparison.

Other formats against Regular

  • -21 Quick vs Regular

    Typical for 800–899 regular players: -11 (middle half -32 to +8, 2,479 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+143
Apr 2026 to May 2026
Biggest drop
-77
Aug 2026 to Sep 2026
Longest rise
2 updates
+184 from Jun 2026 to Aug 2026
Current run
1 update
Unchanged since Sep 2026
Typical move
±60
Mean absolute change; spread ±76.1

Regular rating in context

Oct 2026 update

United States

#42,472of 82,596 rated members · higher than 48.5%

40,075 lower · 50 same rating · 42,471 higher · ties share a rank

New York

#4,477of 9,044 rated members · higher than 50.4%

4,562 lower · 6 same rating · 4,476 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 8,971 within 100 points of 820 (this player included)

Player · 820
01,4502,900

800–849: 2,303 members (2.7%) · highlighted band is the player’s · dashed line is the target

50.1% below 850 (41,440 of 82,596; 48.5% below 820)

Percentile over time · United States

48.5% higher than · Oct 2026 · rank #42,472 of 82,596

Since Dec 2025
+6.9 pts

Dec 2025: higher than 41.6% (rank 47,232 of 81,102)Jan 2026: higher than 42.6% (rank 45,542 of 79,487)Feb 2026: higher than 43.5% (rank 47,380 of 83,940)Mar 2026: higher than 40.5% (rank 47,909 of 80,605)Apr 2026: higher than 36.7% (rank 51,102 of 80,831)May 2026: higher than 44.9% (rank 44,656 of 81,236)Jun 2026: higher than 43% (rank 47,383 of 83,290)Jul 2026: higher than 47.2% (rank 43,605 of 82,736)Aug 2026: higher than 53.1% (rank 38,855 of 83,080)Sep 2026: higher than 49% (rank 42,566 of 83,635)Oct 2026: higher than 48.5% (rank 42,472 of 82,596)
Dec 2025Oct 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 New York 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 Seo, June
MonthRegularQuick
Oct 2026820no change799no change
Sep 2026820-77799-83
Aug 2026897+113882+117
Jul 2026784+71765+62
Jun 2026713-46703-50
May 2026759+143753+141
Apr 2026616-69612-72
Mar 2026685-44684-32
Feb 2026729+12716+11
Jan 2026717+25705+23
Dec 2025692682
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About these statistics. Built from the monthly USCF rating updates available to Chess67. Ratings change between publications, and a missing month is not inactivity. The official US Chess record has current ratings and tournament history.