Thanks, John...but...
I appreciate the effort, but such a summary provides no real correlate with respect to overall performance and wind conditions. The data you provided is standard deviation of only +/- 2.7 Kg on an n=10 without any variable correlate of 'wind speed'.

To do the analysis properly, all races andall competitors along with wind conditions need to be evaluated relative to overall weight of all crews. In addition, we would bin each characteristic with overall skill, say intenational rankings vs the also-rans. Second, this would have to be compared with combined crew weights approaching 180 Kg (in extremum) to differentiate whether or not the boat can be sailed both heavy and competively in lighter conditions to evaluate the 'treatment effect' of added weight. Otherwise, your posted answer is only a 'fait accomplis', and unsubstantiated by fact from the standpoint of the original question.