
| Contest | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 
|---|---|---|---|---|---|---|
| Major Individual Competitions: | ||||||
| TopCoder Open Algorithm | - | top‑24 | ||||
| Worldwide High School and Collegiate Onsites: | ||||||
| IOI | ICPC World Finals | 24 | 42 | |||
| Date | Contest | Rank | Score | Prize | 
|---|---|---|---|---|
| 25 Aug 2002 | IOI 2002 | 72 | 222/600 | |
| 23 Aug 2003 | IOI 2003 | 8 | 417/600 | |
| 12 Nov 2004 | TopCoder Open 2004 Algorithm | 14 
  
  semifinalist (top‑24)
 
  Ranked 5
  
  in Semifinal 1
  
   | 139.02 | $500 | 
| Date | Contest | Rank | Team | Score | Prize | 
|---|---|---|---|---|---|
| 12 Apr 2006 | ACM-ICPC 2006 World Finals | 24 
  
  24
 | KTH - Royal Institute of Technology 
  
  (KTH Lag Bernhardsson):
   | 3/10 | |
| 15 Mar 2007 | ACM-ICPC 2007 World Finals | 42 
  
  42
 | KTH - Royal Institute of Technology 
  
  (Lag Bernhardsson):
   | 4/10 | $300 |