Completing my first marathon was an incredible achievement. But the next question was, how can I outdo myself and beat my time on the next one? Some people splurge on fitness coaches and expensive training regimens, but I found an easier solution: Lumo Run, a wearable fitness device that trains you on proper form so you can take your marathon game to the next level.

What makes Lumo Run unique is its personalization to your running form and technique. You can work on different target areas like cadence, braking, bounce, pelvic rotation, pelvic drop, to hyperfocus on perfecting every running metric and shaving minutes off your race time. The device uses a 5% coaching model so you can gradually improve your form, build positive muscle memory, and reduce the risk of injury. It comes with an app that recommends specific exercises to help curate your running program and challenge you as you improve.

Since I started using it, I’ve been doing far less damage to my body. In a few weeks, I managed to improve more than in the last two years of running. Each morning, I’d simply clip the device onto my running shorts and I’d be off. My focus has always been on getting a faster marathon time and the real-time audio coaching has helped keep me on track. With the app, I can see my improvement in specific areas and how it has helped me to run as efficiently as possible, and not waste any energy while I run. The most beneficial things I’ve learned are the importance of bounce and braking and was able to adjust my stride so that it’s not too bouncy or causing deceleration.

Lumo Run is backed by experienced health coaches and researchers that are runners themselves, knowing how to put your form into focus, and truly create a personalized and interactive workout regimen. With real-life expertise, Lumo Run has the criteria to give you the tools for a better run and the building blocks to becoming a better runner.

It’s one thing to complete a marathon, but it’s another to beat your time or go a longer distance than you thought possible. Lumo Run helped me go from first-time marathon runner to having two more marathons under my belt and working towards a faster marathon time. Lumo Run can help you achieve your goals of becoming a better, faster runner, whether running is a time for you to clear your head and unwind or if you’re training for your next race. Whatever your running goals, Lumo Run is a runner’s best-kept secret.

Update: The awesome folks over at Lumo are offering a special deal for our readers when you use the code PO15. Follow this link and enter code PO15 at checkout to get $15 off your purchase of Lumo Run!