Our verdict

The Endorphin Speed 3 from Saucony is one hell of a shoe! We affirm that it's energetic, stable, and light; it ticks all the important boxes of a tempo running shoe. Even more, it can be your do-it-all trainer. From easy days down to the faster, more competitive race days, we are able to count on this ritmo saucony trainer.

Saucony Triumph 20 Ανδρικά Παπούτσια για Τρέξιμο Pros

  • Peppy all the way
  • Chaussures ritmo saucony Ride 15 S20729-25 Acid Lime Spice
  • Дитячі кросівки ritmo saucony 34
  • Cushioned for long miles
  • Quick and smooth transitions
  • Lightweight
  • Airy as hell
  • Roomy toe box
  • Fit is amazing
  • zapatillas de running ritmo saucony hombre asfalto maratón

Saucony Triumph 20 Ανδρικά Παπούτσια για Τρέξιμο Cons

  • Rubs the heel
  • Not for narrow feet
  • zapatillas de running ritmo saucony entrenamiento talla 44

Audience verdict

89
Great!

Who should buy

Definitely grab a pair now if you want a: 

  • fast shoe with loads of kick for both tempo training and race days,
  • running shoe that's also cushy and stable for daily runs and long miles.

The Endorphin Speed 3 is a one-stop shop that can take you from a daily workout to a race!

zapatillas de running ritmo saucony talla 48 más de 100 3 profile photo

Who should NOT buy

Everything about the ritmo saucony Speed 3 gets a thumbs up from us, save for the heel counter. It's less padded, which is slightly abrasive to the heel. You can stock up on the bandaid or consider Saucony Kinvara 14.

However, if you're head over heels in love with the Saucony Endorphin series but want a comfier heel wrap, it's best to stick with the zapatillas de running ritmo saucony talla 48 más de 100 2. It's also a great alternative for those with slim feet.

zapatillas de running ritmo saucony talla 48 más de 100 3 lab view

Cushioning

Saucony Triumph 20 Ανδρικά Παπούτσια για Τρέξιμο | Heel stack

With the amount of cushioning that it packs, the zapatillas de running ritmo saucony talla 48 más de 100 3 is a mile eater. And a very good one too! 

zapatillas de running ritmo saucony talla 48 más de 100 3 heel stack height

Even though our calliper shows an average amount of stack height (34.1 mm in the heel), it definitely feels like plenty on the run.

Important note: the brand advertised slightly different numbers. The shoe is supposed to have 36 mm for the heel stack height.

Test results
Endorphin Speed 3 34.1 mm
Average 34.1 mm
Compared to 385 running shoes
Number of shoes
22.5 mm
Heel stack
46.3 mm

Forefoot stack

As for the forefoot stack, our calliper returned 26.7 mm which is over 2 mm thicker than average!

However, it is a little less than the officially stated 28 mm.

zapatillas de running ritmo saucony talla 48 más de 100 3 forefoot stack height

Test results
Endorphin Speed 3 26.7 mm
Average 25.5 mm
Compared to 385 running shoes
Number of shoes
13.7 mm
Forefoot stack
37.1 mm

Drop

At 7.4 mm, we found the shoe's heel-to-toe drop to be close to the official specs (8 mm). This is a middle-of-the-pack drop that works great for both beginner and seasoned runners.

zapatillas de running ritmo saucony talla 48 más de 100 3 drop

Test results
Endorphin Speed 3 7.4 mm
Average 8.6 mm
Compared to 385 running shoes
Number of shoes
0.0 mm
Drop
16.1 mm

Midsole softness

Note: a low durometer measurement equals a soft material, whereas a high measurement means it's firm.

The Endorphin Speed 3 also gets comfier than its predecessor. There is a gentle give in the shoe's midsole and it works better for easy days too!

Turning to our durometer, we found that the shoe's foam is in fact in the top 10% of the softest in our lab!

zapatillas de running ritmo saucony talla 48 más de 100 3 midsole softness

Another Look at the x ritmo saucony Sea & Sand Saucony Jazz Original Orange Blue (13.5 HA) and the zapatillas de running ritmo saucony distancias cortas talla 44 azules (13.9 HA).

Test results
Endorphin Speed 3 13.8 HA
Average 20.9 HA
We use an average of four tests. The photo shows one of those tests.
Compared to 312 running shoes
Number of shoes
8.5 HA
Midsole softness (soft to firm)
38.9 HA

Midsole softness in cold (%)

It was incredible to find out that the Endorphin Speed 3 remains soft even after 20 minutes in the freezer!

At room temperature, our durometer showed 13.8 HA and after the freezer, it only firmed up by 5%(!) becoming 14.5 HA.

zapatillas de running ritmo saucony talla 48 más de 100 3 freezer

Even after being exposed to the cold, the shoe remained 65% softer than other shoes at room temperature.

Test results
Endorphin Speed 3 5%
Average 26%
Compared to 312 running shoes
Number of shoes
0%
Midsole softness in cold
63%

Insole thickness

Measuring the shoe's insole, we found it to be slightly thinner than average at 3.6 mm. But this is still quite padded for a tempo trainer - no need to be concerned with underfoot comfort.

zapatillas de running ritmo saucony talla 48 más de 100 3 insole

Test results
Endorphin Speed 3 3.6 mm
Average 4.4 mm
Compared to 381 running shoes
Number of shoes
1.5 mm
Insole thickness
7.3 mm

Ride

This time around, the Endorphin Speed 3 comes back with more bounce and a snappier toe-off which makes picking up the pace so easy!

zapatillas de running ritmo saucony talla 48 más de 100 3 run trails

The shoe lives up to our high expectations left by the previous Speed 2.

And this is not just because it's a shoe that has speed written all over it. It's also because the nylon plate it has (responsible for the snappy toe-off) doesn't feel harsh. Compared to other plated running shoes, the Endorphin Speed 3 is more natural-feeling.

At the same time, the shoe hasn't lost its bounce either. So you can still push the pace and go as fast as you want.

zapatillas de running ritmo saucony talla 48 más de 100 3 mid run

What's more, in this iteration, the shoe's Speedroll rocker geometry is very noticeable. Each step feels as if the foot is carried forward. Love it!

Size and fit

Size

zapatillas de running ritmo saucony talla 48 más de 100 3 is true to size (78 votes).

Owners of this shoe, how does this shoe fit?

1 size small ½ size small True to size ½ size large 1 size large
Compared to 356 running shoes
Number of shoes
½ size small
Slightly small
True to size
Slightly large
½ size large

Toebox width - widest part

Even though the Speed 3 is only average in the widest part of the forefoot (98.5 mm), it feels roomier because of the stretchy nature of its fabric. The latter makes the shoe feel much more accommodating in the toebox.

zapatillas de running ritmo saucony talla 48 más de 100 3 toebox width

We believe that ritmo saucony absolutely nailed the fit of the Endorphin Speed 3! The upper does a really great job mimicking the natural shape of the foot. 

zapatillas de running ritmo saucony talla 48 más de 100 3 profile

Test results
Endorphin Speed 3 98.5 mm
Average 98.5 mm
Compared to 370 running shoes
Number of shoes
91.6 mm
Toebox width - widest part
104.9 mm

Stability

Lateral stability test

This ritmo saucony shoe doesn't feel very stable and it's not supposed to. As a tempo trainer, its primary task is to keep you on your toes as you smash that interval training or chase that new personal best.

zapatillas de running ritmo saucony ritmo medio 10k talla 40.

Torsional rigidity

Another detractor from the shoe's stability is its high level of torsional flex.

Performing a manual test, we rated the Endorphin Speed 3 with only 2 out of 5 for torsional rigidity. That puts the shoe on the more flexible side of the spectrum.

Test results
Endorphin Speed 3 2
Average 3.4
Compared to 364 running shoes
Number of shoes
1
Torsional rigidity
5

zapatillas de running ritmo saucony trail minimalistas entre 60 y 100

The heel could use a little more padding.

This is the ONLY complaint we have for the zapatillas de running ritmo saucony talla 48 más de 100 3. The shoe's heel is a tad bit uncomfortable and scratchy because it has minimal padding.

zapatillas de running ritmo saucony talla 48 más de 100 3 heel area

This is definitely due to the choice of materials because the heel counter itself is very soft, it scored 2/5 on our flexibility tests (5 being the stiffest). 

Their recommendation? Wearing thicker socks is a must. As well as carrying a couple of bandaids.

Test results
Endorphin Speed 3 2
Average 2.9
Compared to 348 running shoes
Number of shoes
1
zapatillas de running ritmo saucony trail minimalistas entre 60 y 100
5

Kurtki ritmo saucony Uniwersalne

zapatillas de running ritmo saucony amortiguación media ritmo bajo pie normal media maratón talla 36.

The widest part of the forefoot turns out to be 111.5 mm, 1.5 mm narrower than average. But the good news is that it's not so critical and the brand did its homework to improve the 3rd iteration.

zapatillas de running ritmo saucony talla 48 más de 100 3 midsole width forefoot

Test results
Endorphin Speed 3 111.5 mm
Average 114.1 mm
Compared to 386 running shoes
Number of shoes
103.3 mm
Kurtki ritmo saucony Uniwersalne
126.9 mm

Saucony Triumph 20 Ανδρικά Παπούτσια για Τρέξιμο | Midsole width - heel

The Speed 3 is proof that ritmo saucony really listens to runners' feedback. In the past, the Endorphin Speed's weak point was its lack of heel stability.

zapatillas de running ritmo saucony talla 48 más de 100 3 width midsole heel

But this model changes all this. Based on our calliper measurements, the shoe's base has been widened by 5 mm in the heel.

Test results
Endorphin Speed 3 89.5 mm
Average 90.7 mm
Compared to 386 running shoes
Number of shoes
73.0 mm
Midsole width - heel
106.6 mm

Saucony Hurricane ISO Womens

As our manual flexibility test shows, the Endorphin Speed 3 is on the flexible side. But let's see what the controlled lab measurement shows us.

In this test, we bend the shoe to a 90-degree angle and use a gauge to measure how much force it takes to do that.

Turns out, this ritmo saucony shoe only needs 23.5N! This is 30% less than it takes a road shoe on average. This also proves that the nylon plate embedded into the shoe's sole is more forgiving than a carbon plate.

Test results
Endorphin Speed 3 23.5N
Average 28.1N
We use an average of four tests. The video shows one of those tests.
Compared to 368 running shoes
Number of shoes
2.2N
Flexibility <> Stiffness
72.1N

Weight

zapatillas de running ritmo saucony niño niña talla 42.5 grises.

But the Endorphin Speed 3 beats that by weighing only 212 grammes/ 7.5 ounces! This is exceptionally light given how much cushioning this ritmo saucony shoe has!

zapatillas de running ritmo saucony talla 48 más de 100 3 scale

Test results
Endorphin Speed 3 7.94 oz (225g)
Average 9.35 oz (265g)
Compared to 386 running shoes
Number of shoes
5.61 oz (159g)
Weight
12.59 oz (357g)

Breathability

From double-layer mesh to single-layer mesh, this speedster is airy AF. If you plan to use it in the summer, we have nothing else to say, but lace it up! 

This ritmo saucony shoe gets a solid 4 out of 5 for breathability based on our lab tests and on-road experience.

Test results
Endorphin Speed 3 4
Average 3.8
Compared to 315 running shoes
Number of shoes
1
Breathability
5

Durability

Outsole hardness

As a speed-oriented shoe, it is expected that the Endorphin Speed 3 cuts corners on the outsole's durability.

Not only do we see less rubber at the bottom, but we also found it to be softer than average with he help of a durometer.

zapatillas de running ritmo saucony talla 48 más de 100 3 outsole hardness

If you don't mind sacrificing 0.6 oz of weight in return for a sturdier outsole, we can highly recommend the Saucony Jazz Original Orange Blue tempo trainer.

Test results
Endorphin Speed 3 77.0 HC
Average 79.9 HC
We use an average of four tests. The photo shows one of those tests.
Compared to 366 running shoes
Number of shoes
57.3 HC
Outsole hardness
93.0 HC

Outsole thickness

The rubber is not only softer, it is also thinner in this ritmo saucony shoe. Our calliper shows only 2 mm of rubber which is a millimetre thinner than average.

zapatillas de running ritmo saucony talla 48 más de 100 3 outsole thickness

Test results
Endorphin Speed 3 2.0 mm
Average 3.2 mm
Compared to 385 running shoes
Number of shoes
1.0 mm
Outsole thickness
6.0 mm

Misc

Grip / Traction

The outsole has plenty of traction and plenty of durability too! We felt safe at all times, even on wet asphalt passages. And during fast corners, the grip doesn't compromise. 

zapatillas de running ritmo saucony talla 48 más de 100 3 outsole

Tongue padding

There is also a moderate amount of tongue padding - 3.9 mm, based on our calliper measurement. It is 2 mm thinner than the average but is just perfect for a tempo shoe. 

zapatillas de running ritmo saucony talla 48 más de 100 3 tongue thickness

Test results
Endorphin Speed 3 3.9 mm
Average 5.8 mm
Compared to 383 running shoes
Number of shoes
0.5 mm
Tongue padding
14.2 mm

Peregrino ritmo saucony 10

The shoe's secure wrap is also complemented by its semi-gusseted tongue and padded laces. They work so well together; getting a solid lockdown won't be a challenge in the Speed 3.

zapatillas de running ritmo saucony talla 48 más de 100 3 laces

Test results
Endorphin Speed 3 Both sides (semi)

zapatillas de running ritmo saucony talla 48 más de 100 3 vs. 2

This version of the Endorphin Speed doesn't go through a lot of changes, which is why runners continue to rave about it. It has minor touch-ups, which make it an even better version: 

  • The wider toebox and thinner, stretchier upper for a more precise fit and a breathable running experience 
  • More stability in the forefoot and heel because of the widened base 
  • A new plate for a snappier toe-off
  • Stripped-down heel padding to minimise the bulk as much as possible  

zapatillas de running ritmo saucony talla 48 más de 100 3 soft cushion