Herman, Try section 13 of this URL http://www.asimere.com/BridgeArticles/VPScales.htm or if that's too hard use these: 4-0 scale for 2 board matches Imps VPs 0-2 2-2 3-7 3-1 8+ 4-0 6-0 scale for 3 board matches Imps VPs 0-1 3-3 2-6 4-2 7-12 5-1 13+ 6-0 8-0 scale for 4 board matches Imps VPs 0-1 4-4 2-5 5-3 6-9 6-2 10-15 7-1 16+ 8-0