
| Contest | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 
|---|---|---|---|---|---|---|
| Worldwide High School and Collegiate Onsites: | ||||||
| IOI | ICPC World Finals | TopCoder Collegiate Challenge Algorithm | top‑48 | - | ||
| Date | Contest | Rank | Score | Prize | 
|---|---|---|---|---|
| 17 Nov 2006 | TCCC 2006 Algorithm | 26 
  
  semifinalist (top‑48)
 
  Ranked 9
  
  in Semifinal 2
  
   | 805.86 | $400 | 
| 23 Aug 2003 | IOI 2003 | 53 | 283.90/600 | |
| 18 Sep 2004 | IOI 2004 | 124 | 290/600 | |
| 25 Aug 2005 | IOI 2005 | 62 | 412/600 | 
| Date | Contest | Rank | Team | Score | Prize | 
|---|---|---|---|---|---|
| 15 Mar 2007 | ACM-ICPC 2007 World Finals | 9 | University of Waterloo 
  
  (Waterloo):
   | 6/10 |  $1300 | 
| 09 Apr 2008 | ACM-ICPC 2008 World Finals | 9 | University of Waterloo 
  
  (U Waterloo):
   | 7/11 |  $1300 |