
| Contest | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 
|---|---|---|---|---|---|---|---|
| Major Individual Competitions: | |||||||
| TopCoder Open Algorithm | top‑24 | Google Code Jam | Q | 30 | 64 | - | 21 | 
| Worldwide High School and Collegiate Onsites: | |||||||
| ICPC World Finals | 28 | TopCoder Collegiate Challenge Algorithm | top‑24 | top‑24 | top‑48 | top‑48 | - | - | 
| Date | Contest | Rank | Score | Prize | 
|---|---|---|---|---|
| 16 Apr 2004 | TCCC 2004 Algorithm | 14 
  
  semifinalist (top‑24)
 
  Ranked 5
  
  in Semifinal 1
  
   | 242.72 | |
| 11 Mar 2005 | TCCC 2005 Algorithm | 11 
  
  semifinalist (top‑24)
 
  Ranked 4
  
  in Semifinal 2
  
   | 558.29 | $400 | 
| 17 Nov 2006 | TCCC 2006 Algorithm | 35 
  
  semifinalist (top‑48)
 
  Ranked 12 - 13
  
  in Semifinal 1
  
   | 50 | $400 | 
| 02 Nov 2007 | TCCC 2007 Algorithm | 23 
  
  semifinalist (top‑48)
 
  Ranked 8
  
  in Semifinal 1
  
   | 255.34 | $400 | 
| 14 Nov 2003 | Google Code Jam 2003 | 100000023 
  
  qualified
 
  Ranked 23
  
  in Round 2
  
   | ||
| 23 Sep 2005 | Google Code Jam 2005 | 30 
  
  30
 | 259.70 | $1000 | 
| 27 Oct 2006 | Google Code Jam 2006 | 64 
  
  64
 | 182.40 | $750 | 
| 13 Nov 2009 | Google Code Jam 2009 | 21 
  
  21
 | 15/200 | $100 | 
| 12 Nov 2004 | TopCoder Open 2004 Algorithm | 23 
  
  semifinalist (top‑24)
 
  Ranked 8
  
  in Semifinal 1
  
   | 0 | $500 | 
| Date | Contest | Rank | Team | Score | Prize | 
|---|---|---|---|---|---|
| 25 Mar 2003 | ACM-ICPC 2003 World Finals | 10 | Ulm University 
  
  (Sparrows):
   | 6/10 |  $1500 | 
| 31 Mar 2004 | ACM-ICPC 2004 World Finals | 28 
  
  28
 | Universität Ulm 
  
  (Ulm Sparrows):
   | 3/10 |