USCF player statistics
Bastiaanse, Samson
- Biggest rank climb · #2 in Hawaii (Quick)
- Biggest rank climb · #2 in Hawaii (Regular)
- Top rated · #86 in Hawaii (Blitz)
- Gender
- Male
- US Chess reported rank
- #48,041 national · #166 in state
- Floor
- Regular 150 · Quick 150 · Blitz 121
- Rated games
- Regular 19 · Quick 23
US Chess record as of Sep 17, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +190
- Sep 2026 to Oct 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 1 update
- +190 from Sep 2026 to Oct 2026
- Updates that moved
- 2 of 6
- Latest +190, Sep 2026 to Oct 2026
- Typical move
- ±42
- Mean absolute change; spread ±76.7
Regular rating in context
United States
#46,784of 82,596 rated members · higher than 43.3%
35,769 lower · 44 same rating · 46,783 higher · ties share a rank
Hawaii
#171of 394 rated members · higher than 56.5%
223 lower · 1 same rating · 170 higher · ties share a rank
Where this rating sits · United States
82,596 rated members in 50-point bands · median 800–849 · 9,540 within 100 points of 726 (this player included)
700–749: 2,334 members (2.8%) · highlighted band is the player’s · dashed line is the target
44.6% below 750 (36,862 of 82,596; 43.3% below 726)
Percentile over time · United States
43.3% higher than · Oct 2026 · rank #46,784 of 82,596
Since Apr 2026
+15.9 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 |
|---|---|---|---|
| Oct 2026 | 726 P+190 · 24 games | 776+157 | 806 P22 games |
| Sep 2026 | 536 Pno change · 19 games | 619 Pno change · 23 games | — |
| Aug 2026 | 536 Pno change · 19 games | 619 Pno change · 23 games | — |
| Jul 2026 | 536 P+63 · 19 games | 619 P+141 · 23 games | — |
| Jun 2026 | 473 Pno change · 12 games | 478 Pno change · 12 games | — |
| May 2026 | 473 Pno change · 12 games | 478 Pno change · 12 games | — |
| Apr 2026 | 473 P12 games | 478 P12 games | — |
| Mar 2026 | — | — | — |