Robert Karlsson is not currently ranked in the top 300 of the world golf rankings.
Robert Karlsson's peak world ranking occured on October 27, 2008, when he was ranked #6 with 5.395 world ranking points.
Robert Karlsson has spent a total of 27 weeks ranked in the top 10. His longest stretch was 27 consecutive weeks between October 6, 2008 and April 6, 2009.
| Consecutive Weeks | Dates |
| 27 | October 6, 2008 - April 6, 2009 |
| Year | Ranking | Points |
|---|---|---|
| 1997 | 80 | 2.00 |
| 1998 | 67 | 2.38 |
| 1999 | 67 | 2.43 |
| 2000 | 158 | 1.21 |
| 2001 | 72 | 1.72 |
| 2002 | 65 | 1.93 |
| 2003 | 117 | 1.24 |
| 2004 | >300 | |
| 2005 | >300 | |
| 2006 | 31 | 2.92 |
| 2007 | 41 | 2.55 |
| 2008 | 6 | 5.09 |
| 2009 | 27 | 3.14 |
| 2010 | 17 | 4.34 |
| 2011 | 24 | 3.54 |
| 2012 | 121 | 1.36 |
| 2013 | 276 | 0.64 |
| 2014 | 98 | 1.53 |
| 2015 | 208 | 0.89 |
| 2016 | >300 | |
| 2017 | 275 | 0.69 |