Jake Dennis takes the lead in the Formula E championship following the doubleheader in Tokyo

The first night race in Formula E history reshuffled the championship in twenty‑four hours and left it with nine drivers with mathematical title chances and just four separated by fourteen points with only two rounds remaining in London. Jake Dennis left Tokyo with 146 points at the top of the standings, two ahead of Mitch Evans and five ahead of Pascal Wehrlein. Oliver Rowland is fourth, fourteen points back, still within reach of the crown if his rivals falter. Edoardo Mortara, António Félix da Costa, Nick Cassidy, Nico Müller and Nyck de Vries also appear on the list of contenders, though they no longer control their own destiny.

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That Dennis advantage was built on the weekend of Wehrlein, who arrived in Japan as the world championship leader with 141 points and left with the same total. He failed to score in either race. On Saturday, contact with António Félix da Costa broke the suspension on his Porsche and sent him into the wall; the team repaired the car so he could serve a ten‑second penalty, but his weekend was already ruined. On Sunday, a setup error for dry conditions left him out of the points for the second consecutive race. Evans, who had provisionally taken the lead on Saturday with his fourth‑place finish, also failed to score on Sunday due to damage to his Jaguar. Dennis, who was second on Saturday and climbed from 17th to third place on Sunday, scored 33 points and capitalised on Wehrlein's double zero and Evans's poor day to move to the top with 146.

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Dan Ticktum was the star of Saturday with a Pit Boost and Attack Mode strategy that kept him glued to Dennis in the final laps. Ticktum warned over the radio that he would not attack and asked that the message reach the Andretti pit wall. With three corners to go, Dennis ran out of energy due to over‑consumption, and Ticktum dived to the inside. "It was pure merit, from my strategy, from my engineers. That victory tasted much better," said Ticktum, who is looking for a seat for next season.

Nick Cassidy was third in the Citroën, a result he improved on Sunday with a second place worked from 13th on the grid. Both results came a few days after the death of Cyril Blais, the team principal. "I want to celebrate it and at the same time I'm falling apart," said Cassidy.

The rain that fell on Tokyo before Sunday's start forced a lap behind the Safety Car and required teams to decide their setup on the fly. Mahindra gambled on a configuration designed for a drying track, and De Vries made that gamble work perfectly. The Mahindra driver activated his final Attack Mode on lap 28, passed Rowland, and held on in the one‑lap sprint that followed a red flag caused by an incident between Mortara and Joel Eriksson. Cassidy, with the same tyre gamble as Mahindra, was second, and Dennis was third.

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The fight for the drivers' title tightened at the same time as Porsche clinched the manufacturers' championship, thanks to the combined performance of the factory team and its customers Andretti and Cupra Kiro, in the year the German company celebrates 75 years of motorsport history. The battle for the crown will be decided in London on August 15 and 16, with Dennis defending a two‑point lead over Evans and five over Wehrlein, and with the GEN3 Evo contesting its final two races before the generational change.