Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Date | Tournament | Winning score | To par | Margin of victory | Runner(s)-up |
| --- | --- | --- | --- | --- | --- |
| 1 Aug 2004 | Scandinavian Masters by Carlsberg | 69-65-69-69=272 | −16 | 5 strokes | Peter Hanson |
| 5 Sep 2004 | Omega European Masters | 67-67-65-66=265 | −19 | 5 strokes | Miguel Ángel Jiménez |
| 30 May 2010 | Madrid Masters | 65-67-68-67=267 | −21 | 1 stroke | Rhys Davies |
| 27 Feb 2011 | WGC-Accenture Match Play Championship | 3 and 2 | 3 and 2 | 3 and 2 | Martin Kaymer |
| 29 May 2011 | BMW PGA Championship | 64-72-72-70=278 | −6 | Playoff | Lee Westwood |
| 10 Jul 2011 | Barclays Scottish Open * | 67-67-63=197 | −19 | 4 strokes | Fredrik Andersson Hed |
| 27 May 2012 | BMW PGA Championship | 68-68-69-68=273 | −15 | 4 strokes | Paul Lawrie , Justin Rose |
Question:
What is the Margin of victory when rhys davies was runner-up?
Answer:
1 stroke