Rufin was basically exhausted.
3 / 2015 Casablanca Challenger
SF Clay Guillaume Rufin Lamine Ouahab Upcoming H2H
QF Clay Guillaume Rufin Rui Machado 7-5 6-1 H2H
R16 Clay Guillaume Rufin Albert Montanes 6-3 7-5 H2H
R32 Clay Guillaume Rufin Amine Ahouda 6-4 6-1 H2H
QF Clay Guillaume Rufin Wesley Koolhof 6-1 6-2 H2H
QSF Clay Guillaume Rufin Jordan Ubiergo 6-1 6-1 H2H
He had to qualify for this muddy claycourt tournament and didn't have the will to go any further. Ouahab wanted it more, he knew he had a claycourt grinder tomorrow and just could not be dealing with it.
51 / 2014 Qatar F6 Futures
SF Hard James Marsalek Guillaume Rufin 4-6 6-2 6-3 H2H
QF Hard Guillaume Rufin Ramkumar Ramanathan 6-3 7-5 H2H
R16 Hard Guillaume Rufin Toby Martin 7-5 6-0 H2H
R32 Hard Guillaume Rufin Sander Arends 6-4 6-3 H2H
He also tanked this match in bold, which I watched, bet and laughed on.
He is probably the most blatant tanking machine in tennis, closely rivalled by Sizzling.