USCF player statistics

De Groot, Tim C

USCF 12911951MichiganUpdated: Nov 2026
Official US Chess record

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Gender
Male
US Chess reported rank
#22,363 national · #446 in state
Floor
Regular 150 · Quick 118

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

1,1560 since Oct 2026

Published rating · Nov 2026 · 12 published updates since Dec 2025

Nov 20261,156 Regular
Dec 2025: 1148Jan 2026: 1148Feb 2026: 1148Mar 2026: 1148Apr 2026: 1148May 2026: 1148Jun 2026: 1120Jul 2026: 1120Aug 2026: 1120Sep 2026: 1156Oct 2026: 1156Nov 2026: 1156
Dec 2025Nov 2026
12 updates in this window · +8 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -97 Quick vs Regular

    Typical for 1,100–1,199 regular players: -38 (middle half -84 to -9, 2,008 established members). This gap is below the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+36
Aug 2026 to Sep 2026
Biggest drop
-28
May 2026 to Jun 2026
Longest rise
1 update
+36 from Aug 2026 to Sep 2026
Current run
2 updates
Unchanged since Sep 2026
Typical move
±6
Mean absolute change; spread ±14.4

Regular rating in context

Nov 2026 update

United States

#29,304of 83,032 rated members · higher than 64.6%

53,692 lower · 37 same rating · 29,303 higher · ties share a rank

Michigan

#645of 1,912 rated members · higher than 66.2%

1,267 lower · 1 same rating · 644 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 7,234 within 100 points of 1,156 (this player included)

Player · 1,156
01,4252,850

1,150–1,199: 1,664 members (2%) · highlighted band is the player’s · dashed line is the target

66.4% below 1,200 (55,152 of 83,032; 64.6% below 1,156)

Percentile over time · United States

64.6% higher than · Nov 2026 · rank #29,304 of 83,032

Since Dec 2025
0 pts

Dec 2025: higher than 64.6% (rank 28,668 of 81,102)Jan 2026: higher than 64.1% (rank 28,447 of 79,487)Feb 2026: higher than 64.4% (rank 29,808 of 83,940)Mar 2026: higher than 64.1% (rank 28,897 of 80,605)Apr 2026: higher than 64.2% (rank 28,857 of 80,831)May 2026: higher than 64.2% (rank 28,998 of 81,236)Jun 2026: higher than 63.5% (rank 30,291 of 83,290)Jul 2026: higher than 63.7% (rank 29,928 of 82,736)Aug 2026: higher than 63.7% (rank 30,113 of 83,080)Sep 2026: higher than 65.2% (rank 29,000 of 83,635)Oct 2026: higher than 64.7% (rank 29,060 of 82,596)Nov 2026: higher than 64.6% (rank 29,304 of 83,032)
Dec 2025Nov 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 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.

United States statistics Michigan 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 De Groot, Tim C
MonthRegularQuick
Nov 20261,156no change1,059no change
Oct 20261,156no change1,059no change
Sep 20261,156+361,059no change
Aug 20261,120no change1,059no change
Jul 20261,120no change1,059no change
Jun 20261,120-281,059no change
May 20261,148no change1,059no change
Apr 20261,148no change1,059no change
Mar 20261,148no change1,059no change
Feb 20261,148no change1,059no change
Jan 20261,148no change1,059no change
Dec 20251,1481,059

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.