Adizero Boston 13 vs Mach 6

Adidas left the Boston 13's ride close to version 12 and put most of the update into comfort, with a padded heel and tongue and a new mesh upper. There's also more Lightstrike Pro sitting above the stiff carbon-infused rods. It's still a firm tempo shoe that's happiest once the pace picks up, and at £140 it's a cheaper way into rod-assisted speed than a proper carbon racing shoe. Its biggest rival is another adidas. Ben Parkes and Fordy Runs both liked the Boston 13, and both reckoned most runners would have more fun in the lighter, softer Adizero Evo SL. The Boston's argument is durability and a steadier platform, so we'd point it at runners who want one hard-wearing pair for workouts and marathon-block long runs. If you already own a Boston 12 you get on with, the changes are small.

The Hoka Mach 6 is one of the best value do-it-all trainers going, a lightweight road shoe that punches well above its £140 price. It sits in that useful middle ground between a soft daily trainer and a firm racer, so it can handle your easy miles in the week and still come alive when you pick up the pace on tempo day. At 232g with a 5mm drop it feels quick and unfussy underfoot, and the bouncy supercritical foam gives you a lively toe-off without the harshness of a plated racing shoe. There is no carbon plate here, which keeps the ride natural and forgiving. We rate it as a genuine one-shoe solution for runners who want a single pair for most of their training. If you are chasing a marathon PB you will want a plated shoe on race day, but for everything in the build up the Mach 6 is hard to beat. The Mach 7 refines the formula, though the 6 is often the smarter buy on price.