Sei Masuoka's Running Page
Sei Masuoka's Athlete's Page
  at MoCoRunning (Montgomery County Cross Country & Track and Field)
  - First place in Mens 800 Meters, 2010 Outdoor, Montgomery County Schools Track & Field Top 10
- Honorable mention by All-Gazette boys track & field, June 16, 2010
- Maryland State Championships, May 28-29, 2010
    
  
-   His 4x800m relay team marked 7:55:20, a Winston Churchill High School record, in Maryland 4A West Regionals (His split was 1:54.9), May 19-20, 2010
- Maryland 4A West Regional Meet, February 17, 2010
    
      - Boys 1600m Run (Fourth Place, 4:42.26)
- Boys 4x400m Relay (Third Place,  3:46.57)
 
- 37th Annual Charles W. Woodward Cross Country Relays, September 8, 2009
    
      - Cross Country Relay (Eighth place)
 
- Maryland State Championships, May 22-23, 2009
    
  
- Maryland 4A West Regional Meet, May 13-14, 2009
    
  
- Montgomery County Championship Meet, May 6, 2009  
    
  
- His 4x800m relay team marked 7:59.58 in The Penn Relays, April 24, 2009
    
    
- His 4x800m relay team ranked thirteenth nationally in Nike Indoor Nationals 
  in Boston, March 15, 2009
- Named to the Gazette's First Team for outstanding performance in the Churchill 4x800 relay"All-Gazette indoor track: Boys", 
  online article, 
  March 3, 2009
- Maryland 4A State Championship, PG Sportsplex, February 17, 2009
    
  
- Maryland 4A West Regional, PG Sportsplex, February 11, 2009
    
    
  
-   Montgomery County Championship, PG Sportsplex, January 26, 2009 
    
      - Boys 3200 (4x800) Relay
      (First Place)
- Mentioned as "The boys from Churchill -- Sean King, Darren Harris, Sei Masuoka and Will Draffin -- 
                  won the 4x800 relay in a county-record 8:05.93 and now own the second- and third-fastest times in the country on a flat track in that event." 
      in the following Washington Post article
 
- Montgomery Invitational, January 10, 2009
    
  
-  Top High School Finisher, Page's Run, October 12, 2008