
| Contest | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Major Individual Competitions: | ||||||||||||
| TopCoder Open Algorithm | - | - | - | - | - | - | - | Q | Google Code Jam | - | - | - | - | - | - | - | 18 | 9 | - | 
| Worldwide High School and Collegiate Onsites: | ||||||||||||
| IOI | TopCoder Collegiate Challenge Algorithm | - | - | - | - | - | - | - | top‑16 | 6 | ||
| Date | Contest | Rank | Score | Prize | 
|---|---|---|---|---|
| 05 Apr 2003 | TCCC 2003 | 7 
  
  semifinalist (top‑16)
 
  Ranked 2
  
  in Semifinal 3
  
   | 1445.98 | $1000 | 
| 11 Mar 2005 | TCCC 2005 Algorithm | 6 
  
  6
 
  Ranked 3
  
  in Wildcard
  
   | 237.27 | $400 | 
| 02 Aug 1996 | IOI 1996 | 37 | 160/200 | |
| 14 Nov 2003 | Google Code Jam 2003 | 18 
  
  18
 | 150.65 | $250 | 
| 23 Sep 2005 | Google Code Jam 2005 | 9 
  
  9
 | 476.25 | $5000 | 
| 29 Jun 2007 | Topcoder Open 2007 Algorithm | 100000035 
  
  qualified
 
  Ranked 35
  
  in Round 4
  
   |