
| Contest | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 
|---|---|---|---|---|---|---|
| Major Individual Competitions: | ||||||
| TopCoder Open Algorithm | top‑48 | Google Code Jam | - | 57 | ||
| Worldwide High School and Collegiate Onsites: | ||||||
| IOI | ICPC World Finals | 48 | 62 | |||
| Date | Contest | Rank | Score | Prize | 
|---|---|---|---|---|
| 18 Sep 2004 | IOI 2004 | 62 | 375/600 | |
| 25 Aug 2005 | IOI 2005 | 22 | 500/600 | |
| 14 Nov 2008 | Google Code Jam 2008 | 57 
  
  57
 | 29/100 | $500 | 
| 29 Jun 2007 | Topcoder Open 2007 Algorithm | 47 
  
  semifinalist (top‑48)
 
  Ranked 16
  
  in Semifinal 3
  
   | -50 | $400 | 
| Date | Contest | Rank | Team | Score | Prize | 
|---|---|---|---|---|---|
| 09 Apr 2008 | ACM-ICPC 2008 World Finals | 48 
  
  48
 | Cornell University 
  
  (Cornell Big Red):
   | 3/11 | $300 | 
| 21 Apr 2009 | ACM-ICPC 2009 World Finals | 62 
  
  62
 | Cornell University 
  
  (Cornell Red):
   | 3/11 | $300 |