Petter Engdahl, the 2022 champion, arrives at the 2026 Transvulcania Ultramarathon less than three weeks after racing the Boston Marathon. In the following interview, Petter talks about his spring training and motivation to run a marathon, how he's trained for various distances over the past few years, and his approach to tackling the 2,500-meter final descent of Transvulcania.