USCF player statistics

Mccollum, John Robert

USCF 30887728South CarolinaLatest monthly rating update: Sep 2026
Official US Chess record
Rating format

Regular rating

1,3350 since Aug 2026

Published rating · Sep 2026 · 10 published updates since Dec 2025

Sep 20261,335 Regular
Dec 2025: 1242Jan 2026: 1243Feb 2026: 1242Mar 2026: 1243Apr 2026: 1243May 2026: 1243Jun 2026: 1243Jul 2026: 1335Aug 2026: 1335Sep 2026: 1335
Dec 2025Sep 2026
10 updates in this window · +93 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • +185 Quick vs Regular

    No national baseline for this rating band yet.

  • -242 Blitz vs Regular

    No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+92
Jun 2026 to Jul 2026
Biggest drop
-1
Jan 2026 to Feb 2026
Longest rise
1 update
+92 from Jun 2026 to Jul 2026
Current run
2 updates
Unchanged since Jul 2026
Typical move
±11
Mean absolute change; spread ±30.6

Regular rating in context

Sep 2026 update

United States

#22,807of 83,635 rated members · higher than 72.6%

60,794 lower · 35 same rating · 22,806 higher · ties share a rank

South Carolina

#235of 805 rated members · higher than 70.8%

570 lower · 1 same rating · 234 higher · ties share a rank

Where this rating sits · United States

83,635 rated members in 50-point bands · median 800–849 · 6,941 within 100 points of 1,335 (this player included)

Player · 1,335
01,4502,900

1,3001,349: 1,775 members (2.1%) · highlighted band is the player’s · dashed line is the target

73.2% below 1,350 (61,297 of 83,635; 72.6% below 1,335)

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.

United States statistics South Carolina 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 Mccollum, John Robert
MonthRegularQuickBlitz
Sep 20261,335no change1,520+501,093+45
Aug 20261,335no change1,470-191,048 Pno change · 23 games
Jul 20261,335+921,489-561,048 Pno change · 23 games
Jun 20261,243no change1,545-621,048 Pno change · 23 games
May 20261,243no change1,607-721,048 Pno change · 23 games
Apr 20261,243no change1,679no change1,048 Pno change · 23 games
Mar 20261,243+11,679no change1,048 Pno change · 23 games
Feb 20261,242-11,679+641,048 P+16 · 23 games
Jan 20261,243+11,615-151,032 Pno change · 18 games
Dec 20251,2421,6301,032 P18 games

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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.