The ASICS Megablast has been hailed as one of the most versatilte daily trainers going. But how does it perform when you hit the last six miles of a marathon? And could it be a good choice for taking on the marathon distance? Run Tester Kieran took it for a solo 4.5-hour marathon around the streets of London to find out... JUMP STRAIGHT IN: 0:00 – The Megblast 0:16 – Intro: What's the marathon test? 1:42 – 19 miles in / 7 to go 5:06 – Post marathon verdict