USCF player statistics

Yermolinsky, Alex

USCF 12534917South DakotaUpdated: Oct 2026
Official US Chess record

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Gender
Male
FIDE title
G
FIDE
FIDE 2005492
TD
Local
US Chess reported rank
#180 national · #2 in state
Floor
Regular 2,200 · Quick 2,100 · Blitz 2,100 · Online Regular 100
Rated games
Online Regular 19

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

2,4260 since Sep 2026

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

Oct 20262,426 Regular
Dec 2025: 2442Jan 2026: 2442Feb 2026: 2442Mar 2026: 2442Apr 2026: 2442May 2026: 2442Jun 2026: 2431Jul 2026: 2431Aug 2026: 2431Sep 2026: 2426Oct 2026: 2426
Dec 2025Oct 2026
11 updates in this window · -16 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • +157 Quick vs Regular

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

  • -40 Blitz vs Regular

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

  • +122 Online Regular vs Regular (provisional)

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

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
—
No gain between published updates yet
Biggest drop
-11
May 2026 to Jun 2026
Longest rise
—
No consecutive gains yet
Current run
1 update
Unchanged since Sep 2026
Typical move
±2
Mean absolute change; spread ±3.7

Regular rating in context

Oct 2026 update

United States

#196of 82,596 rated members · higher than 99.7%

82,399 lower · 2 same rating · 195 higher · ties share a rank

South Dakota

#2of 172 rated members · higher than 98.8%

170 lower · 1 same rating · 1 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 279 within 100 points of 2,426 (this player included)

Player · 2,426
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 2,426)

Percentile over time · United States

99.7% higher than · Oct 2026 · rank #196 of 82,596

Since Dec 2025
0 pts

Dec 2025: higher than 99.7% (rank 184 of 81,102)Jan 2026: higher than 99.7% (rank 179 of 79,487)Feb 2026: higher than 99.7% (rank 180 of 83,940)Mar 2026: higher than 99.7% (rank 174 of 80,605)Apr 2026: higher than 99.7% (rank 171 of 80,831)May 2026: higher than 99.7% (rank 172 of 81,236)Jun 2026: higher than 99.7% (rank 190 of 83,290)Jul 2026: higher than 99.7% (rank 189 of 82,736)Aug 2026: higher than 99.7% (rank 190 of 83,080)Sep 2026: higher than 99.7% (rank 202 of 83,635)Oct 2026: higher than 99.7% (rank 196 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 South Dakota 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 Yermolinsky, Alex
MonthRegularQuickBlitzOnline Regular
Oct 20262,426no change2,583no change2,386no change2,548 Pno change · 19 games
Sep 20262,426-52,583no change2,386no change2,548 Pno change · 19 games
Aug 20262,431no change2,583no change2,386+12,548 Pno change · 19 games
Jul 20262,431no change2,583no change2,385no change2,548 Pno change · 19 games
Jun 20262,431-112,583no change2,385no change2,548 Pno change · 19 games
May 20262,442no change2,583-442,385-312,548 Pno change · 19 games
Apr 20262,442no change2,627no change2,416 Pno change · 18 games2,548 Pno change · 19 games
Mar 20262,442no change2,627no change2,416 Pno change · 18 games2,548 Pno change · 19 games
Feb 20262,442no change2,627no change2,416 Pno change · 18 games2,548 Pno change · 19 games
Jan 20262,442no change2,627no change2,416 Pno change · 18 games2,548 Pno change · 19 games
Dec 20252,4422,6272,416 P18 games2,548 P19 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.