USCF player statistics

Borkowski, Slawomir

USCF 13926645IllinoisUpdated: Oct 2026
Official US Chess record

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Gender
Male
FIDE
FIDE 2069130
US Chess reported rank
#15,199 national · #639 in state
Floor
Regular 1,400 · Quick 1,200 · Blitz 1,300 · Online Regular 100 · Online Quick 1,200 · Online Blitz 1,400

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

1,4050 since Sep 2026

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

Oct 20261,405 Regular
Dec 2025: 1436Jan 2026: 1443Feb 2026: 1405Mar 2026: 1405Apr 2026: 1405May 2026: 1405Jun 2026: 1405Jul 2026: 1405Aug 2026: 1405Sep 2026: 1405Oct 2026: 1405
Dec 2025Oct 2026
11 updates in this window · -31 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -30 Quick vs Regular

    Typical for 1,400–1,499 regular players: -84 (middle half -160 to -33, 1,988 established members). This gap is above the typical range.

  • -101 Blitz vs Regular

    Typical for 1,400–1,499 regular players: -189 (middle half -347 to -64, 664 established members). This gap is within the typical range.

  • -58 Online Regular vs Regular

    Typical for 1,400–1,499 regular players: -292 (middle half -465 to -136, 203 established members). This gap is above the typical range.

  • -12 Online Quick vs Regular

    Typical for 1,400–1,499 regular players: -228 (middle half -456 to -70, 219 established members). This gap is above the typical range.

  • -5 Online Blitz vs Regular

    Typical for 1,400–1,499 regular players: -41 (middle half -177 to +95, 157 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+7
Dec 2025 to Jan 2026
Biggest drop
-38
Jan 2026 to Feb 2026
Longest rise
1 update
+7 from Dec 2025 to Jan 2026
Current run
8 updates
Unchanged since Feb 2026
Typical move
±5
Mean absolute change; spread ±12.5

Regular rating in context

Oct 2026 update

United States

#20,405of 82,596 rated members · higher than 75.2%

62,159 lower · 33 same rating · 20,404 higher · ties share a rank

Illinois

#901of 4,655 rated members · higher than 80.5%

3,750 lower · 5 same rating · 900 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 6,895 within 100 points of 1,405 (this player included)

Player · 1,405
01,4502,900

1,400–1,449: 1,856 members (2.2%) · highlighted band is the player’s · dashed line is the target

77% below 1,450 (63,680 of 82,596; 75.2% below 1,405)

Percentile over time · United States

75.2% higher than · Oct 2026 · rank #20,405 of 82,596

Since Dec 2025
-1.3 pts

Dec 2025: higher than 76.5% (rank 19,002 of 81,102)Jan 2026: higher than 76.4% (rank 18,660 of 79,487)Feb 2026: higher than 75.2% (rank 20,760 of 83,940)Mar 2026: higher than 75% (rank 20,117 of 80,605)Apr 2026: higher than 75.1% (rank 20,034 of 80,831)May 2026: higher than 75.2% (rank 20,108 of 81,236)Jun 2026: higher than 75.6% (rank 20,285 of 83,290)Jul 2026: higher than 75.7% (rank 20,072 of 82,736)Aug 2026: higher than 75.6% (rank 20,179 of 83,080)Sep 2026: higher than 75.6% (rank 20,331 of 83,635)Oct 2026: higher than 75.2% (rank 20,405 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 Illinois 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 Borkowski, Slawomir
MonthRegularQuickBlitzOnline RegularOnline QuickOnline Blitz
Oct 20261,405no change1,375no change1,304no change1,347no change1,393no change1,400-30
Sep 20261,405no change1,375no change1,304no change1,347no change1,393-11,430+4
Aug 20261,405no change1,375no change1,304no change1,347no change1,394no change1,426-1
Jul 20261,405no change1,375no change1,304no change1,347no change1,394no change1,427no change
Jun 20261,405no change1,375no change1,304no change1,347no change1,394no change1,427+27
May 20261,405no change1,375no change1,304no change1,347no change1,394no change1,400no change
Apr 20261,405no change1,375no change1,304no change1,347no change1,394no change1,400no change
Mar 20261,405no change1,375no change1,304no change1,347no change1,394no change1,400-62
Feb 20261,405-381,375no change1,304no change1,347no change1,394no change1,462+5
Jan 20261,443+71,375no change1,304no change1,347no change1,394no change1,457+57
Dec 20251,4361,3751,3041,3471,3941,400
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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.