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__Edberg-Chang, 1992 USO SF__, the Minneapolis Star-Tribune has Edberg leading 209-175 in overall points, for a total of 384. The Washington Post and SI have 404. The ATP has 436, but that drops down to 404 if the aces and doubles are subtracted once (with Edberg leading 209-195). So I'm inclined to think that 404 is the correct number; only the Star-Tribune disagrees. I'm not surprised that anyone made a mistake given the record length of the match (5:26 at the ATP and in the press reports). The Post, SI, and the ATP agree that there were 23 service breaks. The LA Times has Chang converting 11 of 34 break points (same as the ATP) and facing 20 himself; the ATP has him facing 21.

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__Becker-Pioline, 1995 W QF__, Becker was broken early in the fifth set according to several sources but the ATP has him unbroken. Each man served 28 times but the ATP has each serving 20. So those stats are incomplete in a way I haven't seen anywhere else; and I don't know if anything is going on with the aces and doubles.

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Sampras-Agassi, 1999 W final, I have Sampras leading 106-85 in overall points, and so does the ATP if aces and doubles faults are subtracted once.

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Agassi-Sampras, 1992 RG QF, I have Agassi leading 102-77. The ATP's numbers drop down to 103-78 if aces and df's are subtracted. And I counted 8 aces by Sampras; the ATP has 6.

Finally, I did my own stats for

__Sampras-Agassi, 1995 USO__, and they agree with the boxscore posted in the OP. The ATP has the total points wrong as well as the break points: they have Sampras converting 4 of 7 but he was at 4 of 8 in my count and in the boxscore.

Next I'll post matches for which the ATP stats look good.