Whether you run into the dreaded wall during a marathon or notice a lack of improvement in your training, sometimes a fresh perspective is all you need to unlock a powerful and productive change.

Successful marathon running is about fuelling well, thinking clearly and responding effectively when the race starts to bite.

Learn what happens under the hood when you’re pushing top speed, and what it takes to increase your pace for 26.2.

Executive editor Abigail Cuffey details her training and race experience at the 2026 TCS London Marathon with New Balance.