Ticktum, who had started fifth, navigated his way through a late Safety Car and two Full Course Yellows, having smartly made it beyond polesitter, and net leader at the time, Jake Dennis through the second round of ATTACK MODE activations - on Lap 29.
RESULTS: The 2025 Sarinah Jakarta E-Prix Round 12
From there, the CUPRA KIRO driver had Edo Mortara's Mahindra to fend off over the final four racing laps to a sprint finish and duly, Ticktum held fast for his first win in 60 Formula E starts, and the team's first win since Moscow in Season 1, via Nelson Piquet Jr.
Earlier on, the battle had looked to be between Dennis - who led much of the race - and Mahindra's de Vries. Dennis defended hard on Lap 22 through the first round of ATTACK MODE activations with elbows out on de Vries out of the final turn.
A lap later, with an overlap in ATTACK, de Vries had another go for P1 and made it by Dennis but was adjudged by the stewards to have been overzealous in his defence in the Turn 1 braking zone and was slapped with a 10-second penalty. That also made it six different winners in the last six races.
Staggeringly, both were removed from contention after that final Full Course Yellow with de Vries' car crawling to a halt with a technical issue and Dennis sliding down the pack after a problem releasing his Full Course Yellow limiter which forced him into the pits - leaving Ticktum and Mortara to scrap for first.
Nico Mueller (Andretti) wound up third - a 10-place gain on his starting slot. Antonio Felix da Costa (Porsche), Nick Cassidy (Jaguar TCS Racing) and Taylor Barnard (NEOM McLaren) rounded out the top six - with the Brit recovering from a poor first ATTACK MODE.
Standings leader Oliver Rowland (Nissan) made up ground early on but a penalty for contact with Maximilian Guenther (DS PENSKE) left him and the team with just one point in Jakarta. With Porsche's Wehrlein failing to score, though, no harm done for the Brit in the Drivers' standings - who could wrap up the title in Berlin with Rounds 13 & 14 on 12 & 13 July.
Porsche head Nissan 203 to 191 points in the Teams' table with Nissan leading Porsche 303 to 299 in the Manufacturers' running.
As it happened...
Dennis lead the way into Turn 1 while de Vries leapfrogged Barnard for P2 and Ticktum found his way into fourth.
Rowland's progress looked good with the Nissan driver on the cusp of the top 10 come Lap 13 but a five-second time penalty for causing a collision with Maximilian Guenther set the standings leader back.
The pack was split by just nine seconds as the top 10 dived for ATTACK MODE approaching the halfway stage on Lap 17. Mortara, da Costa, Ticktum and Buemi jumped for the first of their two mandatory 50kW four-wheel drive ATTACK MODE boosts on consecutive laps as they sought to trouble the lead trio of Dennis, de Vries and Barnard.
Barnard made the jump on Lap 18 as the leaders began to put their foot down - with Dennis and de Vries trying to pull a gap before making their own move through the ATTACK MODE activation zone.
Mortara briefly hit the front as the lead duo took ATTACK on Lap 20, but Dennis and de Vries dispatched the Swiss off the back of the final turn and into Lap 21. The big loser? Barnard - the NEOM McLaren driver shuffled deep into the back end of the top 10 through his first ATTACK MODE activation.
De Vries has two minutes overlap in ATTACK over Dennis, the Brit having to defend super hard out of the final corner on Lap 22 to hold the lead.
A lap later, the Mahindra driver pulled the same move with a good run out of the final turn. He pulled alongside and swept across the nose of Dennis, breaking the Andretti's front wing in the process.
Dennis was left mystified over the radio to his engineer, and a Safety Car was required for the debris to be cleared.
Lap 26 saw the race back underway as the Safety Car peeled off the circuit with de Vries heading Dennis, Mortara, Ticktum, da Costa, Cassidy, Buemi, Mueller, Barnard and Rowland - all bar Dennis with one four-minute 50kW ATTACK MODE boost to take, while the Brit had six minutes left to use.
At Turn 7 on Lap 27 saw Wehrlein lunge at Rowland for a then-ninth spot with the latter overcooking it and coming off worst, the Porsche driver falling to 11th back behind Barnard. Meanwhile, de Vries was duly slapped with a 10-second penalty for that move in the braking zone on Dennis.
Through the second ATTACK MODE activations, Ticktum looked to have pulled a blinder - making it beyond Dennis into a net P1 with de Vries to serve his penalty. A Full Course Yellow for the recovery of Jake Hughes stricken Maserati MSG Racing Tipo Folgore followed and staggeringly, both Dennis and de Vries dropped down all the way down the pack in strife - the former eventually having to pit.
Lap 34 and the race went green once again with Ticktum leading Mortara, Mueller, da Costa, Cassidy, Barnard, Bird, Frijns, Evans and Beckmann the net top 10 taking Buemi and Rowland's penalties into account.
Mortara was all over the back of Ticktum's CUPRA KIRO from there but the Brit managed to hold on for a first Formula E win from 60 starts, with Mortara following him home and Mueller a net third.
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