USCF player statistics
Bui, Richard Giamkhoa
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 5 published updates since May 2026
Other formats against Regular
-6 Quick vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +67
- May 2026 to Jun 2026
- Biggest drop
- -121
- Jun 2026 to Jul 2026
- Longest rise
- 2 updates
- +67 from Jul 2026 to Sep 2026
- Updates that moved
- 4 of 4
- Latest +3, Aug 2026 to Sep 2026
- Typical move
- ±64
- Mean absolute change; spread ±87.9
Regular rating in context
United States
#58,824of 83,635 rated members · higher than 29.6%
24,763 lower · 49 same rating · 58,823 higher · ties share a rank
California
#6,651of 9,051 rated members · higher than 26.4%
2,394 lower · 7 same rating · 6,650 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,945 within 100 points of 500 (this player included)
500–549: 2,741 members (3.2%) · highlighted band is the player’s · dashed line is the target
32.8% below 550 (27,504 of 83,635; 29.6% below 500)
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 |
|---|---|---|
| Sep 2026 | 500 P+3 · 19 games | 494 P+4 · 19 games |
| Aug 2026 | 497 P+64 · 17 games | 490 P+63 · 17 games |
| Jul 2026 | 433 P-121 · 15 games | 427 P-125 · 15 games |
| Jun 2026 | 554 P+67 · 8 games | 552 P+67 · 8 games |
| May 2026 | 487 P4 games | 485 P4 games |
| Apr 2026 | — | — |
| Mar 2026 | — | — |