ASICS MAGIC SPEED 4 vs adidas Adizero Boston 13

The adidas Adizero Boston 13 and ASICS MAGIC SPEED 4 are both super trainers built for uptempo training, but they go about it in very different ways. The MAGIC SPEED 4 is lighter and uses a full-length carbon plate, with a more cushioned underfoot experience. The Boston 13 relies on ENERGYRODS instead, pairing them with a Lightstrike Pro-based midsole in the forefoot that feels bouncier, but the shoe is also noticeably firmer overall. That firmness is a big part of the Boston’s identity: it can feel snappier and more aggressive, but you have to load it with higher force and commit to the pace to really unlock the payoff. The adidas is also flatter, with a less pronounced rocker, so it doesn't feel as smooth when rolling forward. The MAGIC SPEED 4 is less demanding and retains more of its cushioning performance, making it the more reliable option when distance starts to pile up.