The Kiwi romped to a 4.6s win having solely taken the lead of the 46-lap race – prolonged by six laps attributable to two security automotive durations – for the primary time simply 4 laps from the tip having began down in ninth.
Cassidy instantly went into power conservation mode on the Tempelhof Airport circuit, which was utilizing a brand new format this 12 months, and dropped in the direction of the again of the sphere the place he remained for a lot of the race.
Solely within the last laps did he transfer to the entrance to say his second win of the season as he headed house Jean-Eric Vergne and Oliver Rowland after a usually frenetic Method E race.
Having lined off the within into the opening flip, polesitter Edoardo Mortara maintained his benefit from pole for the opening two laps earlier than conceding the place at first of lap three after taking his first Assault Mode activation on the earliest alternative.
Throughout the opening 10 laps a number of drivers took turns to steer the sphere together with the DS Penskes of Stoffel Vandoorne and Vergne, in addition to Porsche’s Pascal Wehrlein earlier than biking again into the pack as they too took their first Assault Modes.
A full course yellow and security automotive was referred to as on lap 10 after Joel Eriksson, substituting for Robin Frijns in Berlin, got here to a halt on monitor aboard his Envision.
With the stranded machine recovered the security automotive interval was prolonged additional as race management referred to as for adjustments of place to be made below the warning, the shut pack racing having triggered the mistaken order to be shaped when the yellow was first deployed.
As soon as racing lastly resumed on lap 17, Vergne headed the pack from Wehrlein, Vandoorne, Mortara and the second Porsche of Antonio Felix da Costa, who together with Mitch Evans had but to take both Assault Mode at this stage.
As earlier than the manic racing continued, with drivers working three-wide at factors, with Monaco winner Evans transferring to the entrance for the primary time on lap 19 earlier than pulling a small hole to go offline for Assault Mode on the next tour.
However the Kiwi did not activate which might have ramifications later in proceedings as the remainder of the sphere had accomplished each Assault Modes approaching the midway level of the race.
Maserati MSG’s Maximilian Guenther had began to problem in the direction of the entrance however was shuffled again within the pack which finally left him within the wall on the exit of Flip 9 and the second full warning.
Previous to the second security automotive, which was referred to as after the sphere had already handed Guenther’s stranded machine at racing speeds, Evans had hit the entrance once more in an effort to construct a spot to take his second Assault Mode.
When racing resumed on lap 34, Evans was instantly swamped by the chasing vehicles headed by Wehrlein and Rowland, the Nissan driver having been one of many first to take each Assault Modes having began down in fifteenth.
Having dropped down a number of locations however now armed with further energy, Evans moved again to the entrance and held the place for 3 laps.
Vergne then moved again to the entrance and appeared to be in prime place for his first win this 12 months, however the further power saved by Cassidy allowed him to simply swoop into the lead on the Flip 6/7 hairpin and disappear.
Over the ultimate three laps Vergne simply held on from Rowland, as Evans completed forward of Wehrlein and da Costa.
Like Cassidy, reigning champion Jake Dennis had conserved power within the opening levels and was difficult in the direction of the entrance, however a puncture dropped him out of competition.
Vandoorne claimed seventh forward of polesitter Mortara and the second Nissan of Sacha Fenestraz, who completed minus his entrance wing.
Finishing the highest 10 was McLaren’s Taylor Barnard, who took his first Method E factors on his second begin having needed to pit for a brand new entrance wing earlier within the race.
