This is interesting, does anyone know what happened?
GC after stage 3:
1 Jurgen Roelandts (Bel) Lotto Belisol Team 12:07:29
2 Maarten Wynants (Bel) Rabobank Cycling Team 0:00:12
3 Guillaume Van Keirsbulck (Bel) Omega Pharma - QuickStep 0:00:13
4 Juan Antonio Flecha Giannoni (Spa) Sky Procycling 0:00:17
Results of Stage 4:
1 Nacer Bouhanni (Fra) FDJ-Big Mat 3:24:25
..
3 Jurgen Roelandts (Bel) Lotto Belisol Team s.t.
..
20 Juan Antonio Flecha Giannoni (Spa) Sky Procycling s.t.
..
35 Maarten Wynants (Bel) Rabobank Cycling Team +0:00:11
..
125 Guillaume Van Keirsbulck (Bel) Omega Pharma - QuickStep + 0:01:37
GC after Stage 4:
1 Jurgen Roelandts (Bel) Lotto Belisol Team 15:31:48
2 Juan Antonio Flecha Giannoni (Spa) Sky Procycling 0:00:17
3 Guillaume Van Keirsbulck (Bel) Omega Pharma - QuickStep 0:00:19
4 Maarten Wynants (Bel) Rabobank Cycling Team 0:00:29
Flecha apparently won two intermediate sprints so presumably gained some bonus seconds there, but what with Guillaume? Did he crash near the sprint so got the same time as the winner and only fell one place down because of Flecha's intermediate (marginal

) gains?