USCF player statistics
Tsai, Mu-Chen
- Biggest rank climb · #12 in Arizona (Quick)
- Biggest rank climb · #4 in Arizona (Regular)
- Fastest rising · #12 in Arizona (Quick)
- Gender
- Male
- US Chess reported rank
- #61,417 national · #1,192 in state
- Floor
- Regular 127 · Quick 150
- Rated games
- Regular 4
US Chess record as of Sep 18, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +219
- Sep 2026 to Oct 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 1 update
- +219 from Sep 2026 to Oct 2026
- Updates that moved
- 1 of 9
- Latest +219, Sep 2026 to Oct 2026
- Typical move
- ±24
- Mean absolute change; spread ±73
Regular rating in context
United States
#58,660of 82,596 rated members · higher than 28.9%
23,892 lower · 45 same rating · 58,659 higher · ties share a rank
Arizona
#1,224of 1,672 rated members · higher than 26.7%
448 lower · 1 same rating · 1,223 higher · ties share a rank
Where this rating sits · United States
82,596 rated members in 50-point bands · median 800–849 · 10,675 within 100 points of 494 (this player included)
450–499: 2,645 members (3.2%) · highlighted band is the player’s · dashed line is the target
29.2% below 500 (24,177 of 82,596; 28.9% below 494)
Percentile over time · United States
28.9% higher than · Oct 2026 · rank #58,660 of 82,596
Since Jan 2026
+14 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 |
|---|---|---|
| Oct 2026 | 494 P+219 · 12 games | 847+194 |
| Sep 2026 | 275 Pno change · 4 games | 653+224 |
| Aug 2026 | 275 Pno change · 4 games | 429 P+74 · 14 games |
| Jul 2026 | 275 Pno change · 4 games | 355 Pno change · 9 games |
| Jun 2026 | 275 Pno change · 4 games | 355 P+66 · 9 games |
| May 2026 | 275 Pno change · 4 games | 289 Pno change · 4 games |
| Apr 2026 | 275 Pno change · 4 games | 289 Pno change · 4 games |
| Mar 2026 | 275 Pno change · 4 games | 289 Pno change · 4 games |
| Feb 2026 | 275 Pno change · 4 games | 289 P+1 · 4 games |
| Jan 2026 | 275 P4 games | 288 P4 games |
| Dec 2025 | — | — |