There must be some glitch involving stats on the outer courts. It seems like every match played on them has around 1/10 of the UE counts of every match played on the show courts.
look at stats for King-Cibulkova, a long 3 setter:
http://www.australianopen.com/en_AU/scores/stats/day7/2160ms.html
10 unforced errors combined in a womens match seems statistically impossible. I would say the same for 16 ue's combined for the 5 set Malisse-Almagro match. Federer couldn't dream of playing that well for that long, let alone Almagro.
Here are some stats on showcourt matches:
Fed-Andreev: 93 ue's
Verdasco-Ball: 91
Djokovic-Gimeno: 75
Youzhny-Gasquet: 145
Granollers-Soderling: 107
and some stats on the outer court matches:
Mayer-Petzschner: 16 ue's
Troicki-Lapentti: 6
Kunitsyn-Acasuso: 16
Grosjean-Ilhan: 4
Serra-Melzer: 18
Koellerer-Veic: 4(pretty funny)
The stats from the courts without cameras are not correct.
Winners = aces x2.
UEs = DFs x2.
Yeah, that's what they're doing. Someone at IBM must have fell asleep.