Envision Racing’s Cassidy took a commanding win having led for the final 16 laps of the race, maintaining his position while saving enough energy despite not running in the slipstream.
Jake Dennis finished second as the Andretti Autosport driver shadowed Cassidy for the latter stages of the race - his first points since January.
DS Penske’s Jean-Eric Vergne completed the podium, having battled back past Mitch Evans and Antonio Felix da Costa after falling behind the Jaguar and Porsche drivers approaching the final 10 laps of the race.
Maximilian Guenther climbed from 21st on the grid after a disastrous qualifying to finish sixth, as championship leader Pascal Wehrlein took seventh.
The start of the race was delayed by several minutes after protestors gained access to the circuit as cars performed burnouts before taking up their grid slots.
After the protestors were removed Robin Frijns and Nico Muller led the field, the Abt team-mates having locked out the front-row in a shock qualifying performance.
With drivers not wanting to head the pack, the majority of the leading runners took both their Attack Mode activations in the opening laps, with the running order settling down for the final half of the 40-lap race as drivers held their positions.
More to follow.
Source: Autosport