Saucony’s Endorphin line has quickly become a favorite among runners seeking performance, comfort, and innovation. Two standout models in this lineup are the Endorphin Pro 3 and the Endorphin Speed. Both offer unique technologies designed to enhance running efficiency, but they cater to slightly different needs and running styles. In this article, we’ll compare these two shoes in detail to help you decide which is the best fit for your training and racing goals.

Overview: Endorphin Pro 3 vs Endorphin Speed
- Endorphin Pro 3: Saucony’s top-tier racing shoe built around a full-length carbon-fiber plate and plush PWRRUNPB foam. It’s designed primarily for marathoners and serious racers who want maximum propulsion and cushioning.
- Endorphin Speed: A versatile, lighter-weight trainer-racer hybrid featuring a nylon plate instead of carbon, making it more flexible and suitable for faster workouts and shorter races.
1. Midsole and Plate Technology
Endorphin Pro 3
- Features a full-length carbon-fiber plate for stiffness and propulsion.
- PWRRUNPB foam provides a soft, highly responsive ride with excellent energy return.
- The SPEEDROLL technology promotes a smooth, rolling forward motion, reducing effort during longer races.
Endorphin Speed
- Uses a flexible nylon plate instead of carbon, offering more flexibility and a springy feel.
- PWRRUN foam provides a lighter, slightly firmer cushioning, balancing speed and comfort.
- Also utilizes SPEEDROLL for efficient toe-off but is tuned for quicker transitions and agility.
2. Weight and Stack Height
Model | Weight (Men’s US 9) | Stack Height (Heel/Forefoot) |
---|---|---|
Endorphin Pro 3 | ~7.2 oz (204 g) | 39.5 mm / 31.5 mm |
Endorphin Speed | ~7.8 oz (221 g) | 36 mm / 27 mm |
The Pro 3 is slightly lighter despite a higher stack height, thanks to its advanced foam and carbon plate design. The Speed is a bit heavier but feels more flexible.
3. Intended Use and Race Distance
- Endorphin Pro 3 is optimized for longer races such as half marathons and marathons. Its plush cushioning and carbon plate provide the support and propulsion needed to maintain pace over extended distances.
- Endorphin Speed shines in shorter races (5K to 10K) and fast training sessions. Its flexible nylon plate allows for quicker foot turnover and a more natural feel.
4. Upper and Fit
- The Pro 3 features an engineered mesh upper that is breathable and offers a slightly roomier toe box, accommodating wider feet more comfortably.
- The Speed has a lighter, more minimal upper designed for lockdown and speed, with a snug fit that some runners find more performance-oriented but less forgiving.
5. Cushioning and Comfort
- The Pro 3’s PWRRUNPB foam is softer and more plush, ideal for shock absorption during longer runs, reducing fatigue and impact stress.
- The Speed’s PWRRUN foam is firmer and more responsive, giving a bouncier feel that rewards faster paces but may be less forgiving over time.
6. Price Point
Both shoes typically retail in a similar price range around $200-$230 USD, with occasional sales varying by retailer. The Pro 3 may carry a slight premium due to its carbon plate and advanced midsole foam.
Summary Table
Feature | Endorphin Pro 3 | Endorphin Speed |
---|---|---|
Plate Type | Full-length carbon-fiber plate | Flexible nylon plate |
Cushioning Foam | PWRRUNPB (plush) | PWRRUN (firmer) |
Best For | Marathon & half marathon racing | 5K, 10K, and fast training runs |
Weight | Lighter (~7.2 oz) | Slightly heavier (~7.8 oz) |
Upper Fit | Roomier, breathable | Snug, performance-focused |
Race Distance | Long distance | Shorter races & workouts |
Price Range | Higher | Similar |
Which One Should You Choose?
- Choose the Saucony Endorphin Pro 3 if:
You’re training for half marathons or marathons and want maximum cushioning, energy return, and comfort over longer distances. The Pro 3 excels at helping maintain pace in races where endurance and efficiency matter most. - Choose the Saucony Endorphin Speed if:
You want a versatile shoe that can double as a lightweight trainer and fast racer for shorter distances. Its flexible plate and firmer foam provide quick transitions and responsiveness for tempo runs and 5K or 10K races.
Final Thoughts
Both the Saucony Endorphin Pro 3 and Endorphin Speed bring impressive technology to the running community, but they serve slightly different purposes. Understanding your race goals, running style, and comfort preferences will help you select the shoe that best complements your training and competition needs. Whether you prioritize cushioned propulsion or flexible speed, Saucony’s Endorphin line has a high-performance option ready to elevate your running game.