USCF player statistics

De Mastri, John

USCF 12580948WisconsinUpdated: Oct 2026
Official US Chess record

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Gender
Male
FIDE
FIDE 30926068
TD
Local
US Chess reported rank
#7,707 national · #104 in state
Floor
Regular 1,600 · Quick 1,400 · Blitz 115 · Online Regular 100 · Online Quick 1,300 · Online Blitz 1,400
Rated games
Blitz 16 · Online Regular 16

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

1,687-17 since Sep 2026

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

Oct 20261,687 Regular
Dec 2025: 1667Jan 2026: 1677Feb 2026: 1693Mar 2026: 1715Apr 2026: 1713May 2026: 1728Jun 2026: 1686Jul 2026: 1686Aug 2026: 1693Sep 2026: 1704Oct 2026: 1687
Dec 2025Oct 2026
11 updates in this window · +20 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -180 Quick vs Regular

    Typical for 1,600–1,699 regular players: -119 (middle half -202 to -59, 2,135 established members). This gap is within the typical range.

  • -156 Blitz vs Regular (provisional)

    Typical for 1,600–1,699 regular players: -208 (middle half -334 to -84, 934 established members). This gap is within the typical range.

  • -125 Online Regular vs Regular (provisional)

    Typical for 1,600–1,699 regular players: -360 (middle half -572 to -180, 262 established members). This gap is above the typical range.

  • -135 Online Quick vs Regular

    Typical for 1,600–1,699 regular players: -337 (middle half -560 to -149, 270 established members). This gap is above the typical range.

  • -185 Online Blitz vs Regular

    Typical for 1,600–1,699 regular players: -74 (middle half -194 to +59, 222 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+22
Feb 2026 to Mar 2026
Biggest drop
-42
May 2026 to Jun 2026
Longest rise
3 updates
+48 from Dec 2025 to Mar 2026
Updates that moved
9 of 10
Latest -17, Sep 2026 to Oct 2026
Typical move
±14
Mean absolute change; spread ±19

Regular rating in context

Oct 2026 update

United States

#11,015of 82,596 rated members · higher than 86.6%

71,545 lower · 37 same rating · 11,014 higher · ties share a rank

Wisconsin

#175of 957 rated members · higher than 81.7%

782 lower · 1 same rating · 174 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 6,304 within 100 points of 1,687 (this player included)

Player · 1,687
01,4502,900

1,650–1,699: 1,463 members (1.7%) · highlighted band is the player’s · dashed line is the target

87% below 1,700 (71,896 of 82,596; 86.6% below 1,687)

Percentile over time · United States

86.6% higher than · Oct 2026 · rank #11,015 of 82,596

Since Dec 2025
+0.8 pts

Dec 2025: higher than 85.8% (rank 11,423 of 81,102)Jan 2026: higher than 86% (rank 11,047 of 79,487)Feb 2026: higher than 86.7% (rank 11,053 of 83,940)Mar 2026: higher than 87.7% (rank 9,851 of 80,605)Apr 2026: higher than 87.7% (rank 9,848 of 80,831)May 2026: higher than 88.2% (rank 9,518 of 81,236)Jun 2026: higher than 86.8% (rank 10,962 of 83,290)Jul 2026: higher than 86.8% (rank 10,889 of 82,736)Aug 2026: higher than 87% (rank 10,758 of 83,080)Sep 2026: higher than 87.6% (rank 10,302 of 83,635)Oct 2026: higher than 86.6% (rank 11,015 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 Wisconsin 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 Mastri, John
MonthRegularQuickBlitzOnline RegularOnline QuickOnline Blitz
Oct 20261,687-171,507no change1,531 Pno change · 16 games1,562 Pno change · 16 games1,552no change1,502no change
Sep 20261,704+111,507no change1,531 Pno change · 16 games1,562 Pno change · 16 games1,552no change1,502no change
Aug 20261,693+71,507no change1,531 Pno change · 16 games1,562 Pno change · 16 games1,552no change1,502no change
Jul 20261,686no change1,507no change1,531 Pno change · 16 games1,562 Pno change · 16 games1,552no change1,502no change
Jun 20261,686-421,507-501,531 Pno change · 16 games1,562 Pno change · 16 games1,552+251,502no change
May 20261,728+151,557no change1,531 Pno change · 16 games1,562 Pno change · 16 games1,527no change1,502+5
Apr 20261,713-21,557+1161,531 Pno change · 16 games1,562 Pno change · 16 games1,527no change1,497no change
Mar 20261,715+221,441no change1,531 Pno change · 16 games1,562 Pno change · 16 games1,527no change1,497no change
Feb 20261,693+161,441no change1,531 Pno change · 16 games1,562 Pno change · 16 games1,527no change1,497no change
Jan 20261,677+101,441no change1,531 Pno change · 16 games1,562 Pno change · 16 games1,527no change1,497no change
Dec 20251,6671,4411,531 P16 games1,562 P16 games1,5271,497
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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.