USCF player statistics
Kadher Sulaimon, Muhammad Abdur Rahman
- Biggest rank climb · #18 in United States (Online Blitz)
- Biggest rank climb · #5 in Texas (Online Blitz)
- Top rated · #39 in Texas (Online Blitz)
- Fastest rising · #5 in United States (Online Blitz)
- Fastest rising · #2 in Texas (Online Blitz)
- Gender
- Male
- FIDE
- FIDE 39978117
- US Chess reported rank
- #8,131 national · #627 in state
- Floor
- Regular 1,500 · Quick 1,400 · Blitz 1,300 · Online Blitz 1,800
- Rated games
- Blitz 18
US Chess record as of Sep 17, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +92
- Jul 2026 to Aug 2026
- Biggest drop
- -48
- Feb 2026 to Mar 2026
- Longest rise
- 2 updates
- +140 from Jun 2026 to Aug 2026
- Updates that moved
- 7 of 10
- Latest +29, Sep 2026 to Oct 2026
- Typical move
- ±32
- Mean absolute change; spread ±41.1
Regular rating in context
United States
#9,788of 82,596 rated members · higher than 88.1%
72,778 lower · 31 same rating · 9,787 higher · ties share a rank
Texas
#690of 10,510 rated members · higher than 93.3%
9,815 lower · 6 same rating · 689 higher · ties share a rank
Where this rating sits · United States
82,596 rated members in 50-point bands · median 800–849 · 6,100 within 100 points of 1,721 (this player included)
1,700–1,749: 1,661 members (2%) · highlighted band is the player’s · dashed line is the target
89% below 1,750 (73,557 of 82,596; 88.1% below 1,721)
Percentile over time · United States
88.1% higher than · Oct 2026 · rank #9,788 of 82,596
Since Dec 2025
+7.7 pts
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.
Published ratings by month
P marks a provisional rating; the small figure is the change since the previous published observation.
| Month | Regular | Quick | Blitz | Online Blitz |
|---|---|---|---|---|
| Oct 2026 | 1,721+29 | 1,598+5 | 1,541-17 | 1,989+219 |
| Sep 2026 | 1,692-15 | 1,593-26 | 1,558 P18 games | 1,770-31 |
| Aug 2026 | 1,707+92 | 1,619+97 | — | 1,801+12 |
| Jul 2026 | 1,615+48 | 1,522+57 | — | 1,789+9 |
| Jun 2026 | 1,567no change | 1,465no change | — | 1,780+27 |
| May 2026 | 1,567no change | 1,465no change | — | 1,753 P+32 · 24 games |
| Apr 2026 | 1,567no change | 1,465no change | — | 1,721 Pno change · 17 games |
| Mar 2026 | 1,567-48 | 1,465-57 | — | 1,721 P17 games |
| Feb 2026 | 1,615+20 | 1,522+51 | — | — |
| Jan 2026 | 1,595+66 | 1,471+51 | — | — |
| Dec 2025 | 1,529 | 1,420 | — | — |