Guadio won the Swiss Open in 2005. The Argentine, once a top-10
player, is now ranked No. 103 and his record this year is 6-13.
The loss marked Gaudio's earliest exit in seven appearances in
Gstaad. Beside the '05 title, he was also once a runner-up and
twice a semifinalist.
On Monday, Gaudio had momentum when he won the second-set
tiebreaker, but an hour rain delay allowed Vliegen to refocus.
Vliegen lost to Gaudio in this event the same round in straight
sets four years ago.