USCF player statistics

Tanenbaum, Zachary Chen

USCF 13616253ConnecticutUpdated: Oct 2026
Official US Chess record

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Gender
Male
FIDE title
F
FIDE
FIDE 2060850
US Chess reported rank
#223 national · #7 in state
Floor
Regular 2,200 · Quick 2,100 · Blitz 2,100 · Online Regular 2,000 · Online Quick 2,000 · Online Blitz 2,100

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

2,420+28 since Sep 2026

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

Oct 20262,420 Regular
Dec 2025: 2456Jan 2026: 2470Feb 2026: 2447Mar 2026: 2449Apr 2026: 2420May 2026: 2420Jun 2026: 2386Jul 2026: 2404Aug 2026: 2401Sep 2026: 2392Oct 2026: 2420
Dec 2025Oct 2026
11 updates in this window · -36 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -92 Quick vs Regular

    Typical for 2,400–2,499 regular players: -173 (middle half -328 to -90, 103 established members). This gap is within the typical range.

  • -87 Blitz vs Regular

    Typical for 2,400–2,499 regular players: -148 (middle half -258 to -57, 88 established members). This gap is within the typical range.

  • -161 Online Regular vs Regular

    Typical for 2,400–2,499 regular players: -242 (middle half -330 to -138, 32 established members). This gap is within the typical range.

  • -206 Online Quick vs Regular

    No national baseline for this rating band yet.

  • -18 Online Blitz vs Regular

    Typical for 2,400–2,499 regular players: -224 (middle half -410 to -136, 34 established members). This gap is above the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+28
Sep 2026 to Oct 2026
Biggest drop
-34
May 2026 to Jun 2026
Longest rise
1 update
+28 from Sep 2026 to Oct 2026
Updates that moved
9 of 10
Latest +28, Sep 2026 to Oct 2026
Typical move
±16
Mean absolute change; spread ±20.5

Regular rating in context

Oct 2026 update

United States

#203of 82,596 rated members · higher than 99.7%

82,391 lower · 3 same rating · 202 higher · ties share a rank

Connecticut

#5of 848 rated members · higher than 99.4%

843 lower · 1 same rating · 4 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 295 within 100 points of 2,420 (this player included)

Player · 2,420
01,4502,900

2,400–2,449: 58 members (0%) · highlighted band is the player’s · dashed line is the target

99.7% below 2,450 (82,426 of 82,596; 99.7% below 2,420)

Percentile over time · United States

99.7% higher than · Oct 2026 · rank #203 of 82,596

Since Dec 2025
0 pts

Dec 2025: higher than 99.7% (rank 161 of 81,102)Jan 2026: higher than 99.8% (rank 142 of 79,487)Feb 2026: higher than 99.7% (rank 173 of 83,940)Mar 2026: higher than 99.7% (rank 165 of 80,605)Apr 2026: higher than 99.7% (rank 208 of 80,831)May 2026: higher than 99.7% (rank 211 of 81,236)Jun 2026: higher than 99.7% (rank 244 of 83,290)Jul 2026: higher than 99.7% (rank 215 of 82,736)Aug 2026: higher than 99.7% (rank 219 of 83,080)Sep 2026: higher than 99.7% (rank 236 of 83,635)Oct 2026: higher than 99.7% (rank 203 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 Connecticut 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 Tanenbaum, Zachary Chen
MonthRegularQuickBlitzOnline RegularOnline QuickOnline Blitz
Oct 20262,420+282,328+92,333no change2,259no change2,214no change2,402no change
Sep 20262,392-92,319no change2,333no change2,259no change2,214no change2,402no change
Aug 20262,401-32,319+172,333-242,259no change2,214no change2,402no change
Jul 20262,404+182,302-22,357no change2,259no change2,214no change2,402no change
Jun 20262,386-342,304no change2,357no change2,259no change2,214no change2,402no change
May 20262,420no change2,304no change2,357no change2,259no change2,214no change2,402no change
Apr 20262,420-292,304no change2,357no change2,259no change2,214no change2,402no change
Mar 20262,449+22,304no change2,357no change2,259no change2,214no change2,402no change
Feb 20262,447-232,304no change2,357no change2,259no change2,214no change2,402no change
Jan 20262,470+142,304+162,357-172,259no change2,214no change2,402no change
Dec 20252,4562,2882,3742,2592,2142,402
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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.