Originally Posted by Nadal_Power
Time : 1 hour 54 minutes
Pete Sampras Andre Agassi
87 Rallies 1-4 (157) 70
16 Rallies 5-8 (30) 14
3 Rallies 9-12 (4) 1
So in this case the rally length seems to make no difference. Sampras won 55% of the shortest points and 53% of the ones that went to 5-8 hits.
Even if you take out the 1-stroke points (aces/df's), it makes little difference: that leaves Sampras winning 52% of the rallies going to 2-4 strokes (Sampras wins 65, Agassi 60).
Sampras did win 3 of the 4 longest points, which may have increased the perception that he dominated Agassi from the baseline (those were probably dramatic points).
I just noticed that your rally counts include double-faults, as 1-stroke points (along with aces).
I'm not sure that's the way it's done in official stats but it makes sense, if errors are included as the last shot in a point (ie, unreturned serves are 2-stroke rallies). It's just that in the case of double-faults the error is the only stroke of the point!
I've done rally counts for some matches, can't recall how I did it. But counting double-faults as 1-stroke rallies does make sense.