Actually, Moose, now that you're bringing it up I found some old notes in which I did have a previous streak longer than Wilander's. Curren defeated Connors at the 1983 Wimbledon without losing his serve -- 21 straight holds (I haven't seen that one).
But that was on grass unlike Lendl's streak. On the other hand, it was against the best returner in the game.
Originally Posted by Moose Malloy
The winners of these matches never lost serve, all had longer streaks than 20:
Sampras d Korda, '97 Wimbledon 6-4 6-3 6-7(10) 6-7(1) 6-4
Becker d Stich, '93 Wimbledon 7-5 6-7(5) 6-7(5) 6-2 6-4
Becker d Pioline, '95 Wimbledon 6-3 6-1 6-7(6) 6-7(10) 9-7
Agassi d Martin, '99 US Open Final 6-4 6-7(5) 6-7(2) 6-3 6-2
Sampras d Agassi, '01 US Open QF
The ATP stats on Becker-Pioline are wrong; they have each player serving 20 times when in fact they served 28 times. That looks as if the fifth set is missing.
So they have Pioline winning no break points, but Becker was actually broken for the first time after holding once in the fifth set (and 21 straight times).
Strangely they also have Becker saving 0 of 4 break points rather than 4 of 4.
I remember your old thread on this record (service streaks); I'll re-open it.