USCF player statistics
Yoo, Marcus
Official US Chess record- FIDE
- FIDE 0
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
+46 Quick vs Regular
No national baseline for this rating band yet.
+24 Blitz vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +55
- Aug 2026 to Sep 2026
- Biggest drop
- -99
- Jan 2026 to Feb 2026
- Longest rise
- 1 update
- +55 from Aug 2026 to Sep 2026
- Updates that moved
- 4 of 9
- Latest +55, Aug 2026 to Sep 2026
- Typical move
- ±20
- Mean absolute change; spread ±40.5
Regular rating in context
United States
#42,197of 83,635 rated members · higher than 49.4%
41,390 lower · 49 same rating · 42,196 higher · ties share a rank
New York
#4,591of 9,415 rated members · higher than 51.1%
4,819 lower · 6 same rating · 4,590 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 9,065 within 100 points of 829 (this player included)
800–849: 2,310 members (2.7%) · highlighted band is the player’s · dashed line is the target
50.6% below 850 (42,370 of 83,635; 49.4% below 829)
How these comparisons are calculated
Chess67 calculations from the Sep 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.
Published ratings by month
P marks a provisional rating; the small figure is the change since the previous published observation.
| Month | Regular | Quick | Blitz |
|---|---|---|---|
| Sep 2026 | 829+55 | 875+45 | 853 Pno change · 14 games |
| Aug 2026 | 774no change | 830no change | 853 Pno change · 14 games |
| Jul 2026 | 774no change | 830no change | 853 Pno change · 14 games |
| Jun 2026 | 774no change | 830no change | 853 Pno change · 14 games |
| May 2026 | 774no change | 830no change | 853 Pno change · 14 games |
| Apr 2026 | 774+19 | 830+1 | 853 Pno change · 14 games |
| Mar 2026 | 755no change | 829no change | 853 Pno change · 14 games |
| Feb 2026 | 755-99 | 829-7 | 853 Pno change · 14 games |
| Jan 2026 | 854-8 | 836-8 | 853 Pno change · 14 games |
| Dec 2025 | 862 | 844 | 853 P14 games |