Rowland started eighth and came to the fore late on as the ATTACK MODE activations shook out - with the top 10 shuffling and squabbling relentlessly for position throughout the opening half of the race.
The Nissan driver had been strong managing his energy, navigated the pack and picked his way through to the lead down at the Nouvelle Chicane on Lap 23 of 28, marking a second win in two years in Monte Carlo for the Brit.
A couple of Full Course Yellows were thrown into the mix for Rowland to deal with after some over-exuberant overtaking manoeuvres down the field but the Nissan driver kept cool to cross the line first.
He headed home Edoardo Mortara (Mahindra Racing) on-track, although a 10-second time penalty for the Swiss driver saw Drugovich take P2 for his best Formula E race finish - firmly putting to bed the Brazilian's struggles in Berlin.
Da Costa led late on and wound up third to recover from his late drama in Round 9; the Portuguese driver rounding just ahead of Jaguar TCS Racing teammate Mitch Evans.
Mortara secured fifth with his penalty - for contact with da Costa on the opening lap - applied with Jake Dennis (Andretti Formula E) completing the top six.
Despite a double pole in the Principality, CUPRA KIRO's Dan Ticktum couldn't convert to points - a late penalty leaving him down the order in 14th after opting for ATTACK MODE towards the race's end.
Evans took the ABB FIA Formula E Drivers' Championship points advantage after Round 9 and leaves Monaco on top ahead of Rowland. Jaguar head Porsche in the Teams' and Porsche lead Jaguar in the ABB FIA Formula E Manufacturers' World table.
Oliver Rowland, No. 23, Nissan Formula E Team said:
“It's been nearly a year since I stood at the top of the podium. It was a crazy race, some drivers decided to do some different stuff, I kept a high pace. It was really difficult to keep disciplined, I knew we had to keep higher in energy targets, but staying disciplined and staying out of trouble was key for us. You never know if there is a safety car; it'll bring the targets up. I was pretty confident in what I was doing and the team kept me really informed. I was confident.”
Felipe Drugovich, No. 28, Andretti Formula E said:
“This is such a great thing to do here at this track, I love this place. I think every time I have been here I have had a podium, so happy to keep that going. What a place to get my first podium in Formula E so I'm really really happy. Big thanks to the team that could cope with me for the first few rounds when I was not even close the podium and now we are doing big things so thanks to them.”
António Félix da Costa, No. 13, Jaguar TCS Racing, said:
“I don’t know whether to be happy or angry with the amount of times I’ve been hit from behind this season and races taken from us, and I could not believe it, on lap one, and people were just still taking it easy, I thought. I got hit from behind, and I spun out and went all the way to the back, but with a good strategy from the team and taking a lot of risks, as you can see from my car, I was able to make it back to the front. I need to review it, but I think the full course yellow came out at a good time for me, that first one, and just managing energy to the end. Congrats to these guys, amazing race, I am happy to be on the podium today with these guys after that one.”
