for those interested - the D/L targets after 0/1/2/3/4/5/6 wickets fallen off the first 20 are: 55/62/72/85/102/123/148 - so we could lost the next 4 wickets for 0 runs, in the next 2.2 overs, and still be ahead. If we don't lose another, we will be at least 66 runs ahead, and that would be without scoring another run.