Saucony Endorphin Pro 3 vs Saucony Speed 3: Two Fast Shoes, Two Different Jobs

Introduction

Saucony’s Endorphin Pro and Speed lines used to be close siblings: similar rides, similar racing purposes, with the Speed carrying a nylon plate and a bit more weight. The newest versions, the Endorphin Pro 3 and the Speed 3, have moved in very different directions. Both still use a full-length plate and PWRRUN PB foam underfoot, but each shoe now has a distinct personality.

The short version: the Endorphin Pro 3 is a super-aggressive, super-fast racing shoe, while the Speed 3 is a stable neutral option with a slightly more relaxed feel that can double as a lightweight trainer and race-day shoe for longer distances.

Saucony Endorphin Pro 3: Race Day Weapon

The Endorphin Pro 3 received the biggest changes of the pair. The stack now measures 39.5 millimeters in the heel and 31.5 in the forefoot, keeping the 8 millimeter drop but adding a lot more foam underfoot. The result feels noticeably softer and faster than before.

The mesh upper is lighter and fits a little snug, but it breathes extremely well. Underfoot, the midfoot has been widened and the shoe now features sidewalls, which make it more inherently stable without turning it into a stability shoe. The ride is bouncier than previous versions; the rolling sensation is less prominent than the bounce, and that bounce translates directly into speed.

In terms of performance, this shoe competes with the best racing shoes on the market right now, and it stands out as one of the strongest racing options available. It is an extremely quick shoe for runners who want maximum speed on race day.

Saucony Speed 3: The Flexible All-Rounder

The Speed 3 takes a different path. It keeps the same stack height as before at 28 millimeters, and weight comes in at 8.1 ounces, slightly heavier than the Endorphin Pro 3’s 7.2 ounces. That extra weight comes from real changes: the plate is now winged and there is a much larger sidewall, making this a stable neutral shoe that is still not a stability shoe.

The ride remains bouncy like previous Speed versions, but it is a little more relaxed and less aggressive than the Pro. That makes it a better match for runners who want a lightweight trainer, or who want a bit more flexibility and comfort for longer races such as a half marathon or marathon.

It still works well for workouts too. It will not feel nearly as quick as the Endorphin Pro 3, but it handles a wide range of running for a lot of different people.

Which Shoe Should You Buy?

These two shoes may actually complement each other best: the Speed 3 as the lightweight trainer and workout shoe, and the Endorphin Pro 3 as the race-day option. If you can only pick one, think about how you run.

Choose the Endorphin Pro 3 if you want the fastest possible ride for racing and do not mind a snug, aggressive fit. Choose the Speed 3 if you want one shoe that can handle daily training, workouts, and longer races with a more forgiving, stable ride.

Conclusion

The Endorphin Pro 3 and Speed 3 are no longer near-identical twins. The Pro 3 is a softer, bouncier, more aggressive racer with a taller stack and excellent breathability, while the Speed 3 offers a stable neutral ride at a relaxed pace that suits training and longer events. Matching the shoe to the job is the key to getting the most out of either one.