July 31 (Reuters) - Toyota's reigning ⁠world champion Sebastien Ogier and stand-in co-driver Julien Ingrassia balanced ⁠pace and risk to lead Rally Finland on Friday after ‌Hyundai's hopefuls hit trouble.

Ogier ended the day 16.3 seconds ahead of championship-leading teammate Elfyn Evans, with Finland's Sami Pajari and Oliver Solberg completing a Toyota top fouron a ​day of torrential rain and hazardous standing water.

"It's ⁠been a very good ⁠day. Very tricky this afternoon, not so enjoyable, I guess, for anybody, ⁠but ‌it's good that we managed to come out of that," said Ogier.

Hyundai's Adrien Fourmaux, fastest in Thursday's opening super-special, slid ⁠into a concrete block and dropped to sixth while ​teammate Thierry Neuville ‌went from second to ninth after damaging his car's suspension ⁠on a rock.

Hyundai's ​Esapekka Lappi also rolled out, with the crew unhurt.

"Rallying, unfortunately, sometimes it hits you hard," said Neuville. "But we were able to carry on, we were ⁠able to get that experience this afternoon ​in tremendous conditions."

Ogier, whose regular co-driver Vincent Landais was absent for personal reasons, won three of the morning's four fast gravel stages around Jyvasjkyla ⁠and overcame a slide into a ditch in the afternoon.

Home hero Pajari, 26.7 seconds behind and losing time with a misted-up windscreen, won stages three and six while Evans, Oliver Solberg and Takamoto Katsuta (eighth overall) ​contributed to Toyota's tally and Fourmaux also ⁠won a stage.

"The afternoon was a bit of a lottery in the ​end. I'm glad we managed to survive ‌that," said Evans, who started the rally ​with a 25-point lead over Katsuta.

Saturday features a further eight stages.

(Reporting by Alan Baldwin in London; editing by Clare Fallon)