Best Treadmills for Marathon Training, Intervals, and Home Running

Treadmills can do more than fill the miles when the weather turns bad. At home, you can follow streaming classes, run in privacy, and fit in marathon training, interval sessions, or steady zone 2 work. Some insurance plans also let you use FSA funds to buy a treadmill, which can make the purchase easier to justify. The payoff depends on choosing a machine that suits how you actually train.

If you’re building toward a marathon, working on interval workouts, or keeping your effort easy with zone 2 sessions, the treadmill can make consistency simpler. And yes, a good class can make indoor running fun. That’s a stronger argument than pretending every run needs to happen outdoors.

Best Treadmills

• Best Overall: NordicTrack Commercial 1750
• Best Value: Horizon T101
• Best for Half Marathon Runners: Horizon Fitness 7.0 AT
• Best for a Multi-Runner Household: NordicTrack Commercial 2450
• Best for New Runners: ProForm Carbon
• Best Folding Treadmill: Echelon Stride-6
• Best for Long Runs: Bowflex T9 Treadmill

The category has expanded well beyond basic speed and incline controls. Today’s machines offer more features, use less electricity, and serve a wider range of workouts; some even provide guided coaching that can feel like having a personal trainer at home. But a long feature list doesn’t tell you which treadmill fits your space, budget, or running habits. The picks above cover several common needs.

What’s New for 2026

We’re testing several new treadmills, including the UREVO CyberMega. It’s billed as the first treadmill built specifically for marathon training, which makes it an unusual addition to the category. The claim is striking; whether its design delivers a meaningfully better marathon prep experience is something our testing will have to establish.

If your training calls for higher speeds, longer runs, or more elaborate plans, you may want a more substantial machine. Our guide to the best advanced treadmills covers models that cost more but offer additional training features and sturdier construction.

Full Reviews

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NordicTrack Commercial 1750: Strong all-around, with a few speedwork quirks

The 1750’s best argument is its balance: the 22-by-60-inch running surface gives long-striding runners room, while the cushioning feels supportive without turning each step mushy. Its 4.25 CHP motor, 12 mph top speed, 12% incline and -3% decline cover a broad range of training. The trade-off is a 310-pound machine with a 300-pound user limit, so it’s a substantial piece of equipment to fit into a home. The 16-inch touchscreen is the centerpiece. iFit offers more than 10,000 programs, including a large library of video workouts, and can adjust speed and incline during trainer-led sessions. ActivePulse can also change the treadmill’s settings to keep you in a target heart-rate zone. That’s more than a screen bolted onto a treadmill: the guided workouts and automatic adjustments are the 1750’s clearest differentiators. iFit also syncs with Strava, Apple Health, Google Fit and Garmin Connect. The controls have a small but noticeable blind spot. Speed changes from 6 to 12 mph in about eight seconds, which works for many workouts but may feel sluggish during sharp speed intervals. And there are no dedicated buttons for 10 or 11 mph, an odd omission on a treadmill that reaches 12. Automatic adjustments are useful, but runners who prefer direct control may find those gaps more frustrating. There are practical extras, too: an AutoBreeze fan that responds to your speed and access to Netflix, Prime Video and Spotify. Entertainment choices are limited to those services, and the machine can get noisy during harder efforts. Its design keeps the 16-inch display close to the controls, while the handrails provide a steady hold; the cup holders, however, may be shallow for larger bottles. The price can sting, though frequent sales soften the blow. For runners who want guided training, a roomy belt and cushioning that takes the edge off without feeling unstable, the Commercial 1750 makes a compelling case as an all-around home treadmill. Its strongest features depend on iFit, so the value will hinge partly on whether you want a subscription-based workout experience. NordicTrack Commercial 1750 Review

Best value: Horizon Fitness T101 Connect

$740 at Amazon for Horizon Fitness T101 Connect