Overnight GC-leader Buchmann robbed of podium spot by wrong turn in dying moments.
Bora rider wins solo on stage 5, taking the overall lead by nearly a minute at Itzulia Basque Country.
Chances at GC victory increase for Bora-Hansgrohe following withdrawal of Alaphilippe and Kwiatkowski from the race.
Dangermen Alaphilippe and Kwiatowski taken out of contention by late crash.
Schachmann wins opening time trial at Tour of the Basque Country, a special win he admits was a bit of a surprise to even himself.
Injured in a crash at the Tour of the Basque Country, Peter Stetina faces months of rehabilitation and training before he returns to racing