Uh-oh. Tigist Assefa just proved that the $500 Adidas shoe WORKS.

Salvitore Stitchmo wrote:

Vaporfly Round 2 wrote:

I was hoping that shoe (Adidas Adizero Adios Pro Evo 1) was all hype. Well, it looks like the shoe is the real deal. The marathon records will be re-written again. Pro athletes without the she will be at a disadvantage. A legit 1:59 on the men's side is coming. USA men who need the 2:08 need to get a pair asap.

Okay, so a "legit 1.59" is only happening in those shoes if Kipchoge rolls back the clock a year and switches from Nike to Adidas.

Here is what we know about these shoes relative to performance.

There is nothing magical in these shoes except the lighter foam right? Do we all agree on this? The same meaningless plastic rods and the same upper as the Adios Pro - the shoe she wore in 2022 running 2.15.37

We also know, and this is scientifically proven, that 100g of weight is equal to a 1% performance benefit, and this is universal - men and women. The Adios pro (almost all versions 1-3) weigh in at about 215g. This shoe weighs in at about 140g. That is a 75g saving or a 0.75% performance benefit.

Today Tigst improved around 2.75%

Let's then remove the benefit of the product and we have an astronomical 2% further improvement in performance - and keep in mind this isn't from a 2hr30 level of running - she was already the 6th fastest ever and within 90 seconds of the current WR.

I'm sorry there is simply no way, repeat, no freaking way that performance is legit.

High hopes wrote:

Salvitore Stitchmo wrote:

Okay, so a "legit 1.59" is only happening in those shoes if Kipchoge rolls back the clock a year and switches from Nike to Adidas.

Here is what we know about these shoes relative to performance.

There is nothing magical in these shoes except the lighter foam right? Do we all agree on this? The same meaningless plastic rods and the same upper as the Adios Pro - the shoe she wore in 2022 running 2.15.37

We also know, and this is scientifically proven, that 100g of weight is equal to a 1% performance benefit, and this is universal - men and women. The Adios pro (almost all versions 1-3) weigh in at about 215g. This shoe weighs in at about 140g. That is a 75g saving or a 0.75% performance benefit.

Today Tigst improved around 2.75%

Let's then remove the benefit of the product and we have an astronomical 2% further improvement in performance - and keep in mind this isn't from a 2hr30 level of running - she was already the 6th fastest ever and within 90 seconds of the current WR.

I'm sorry there is simply no way, repeat, no freaking way that performance is legit.

Correction: 100g of weight is equal to a 1% improvement in running economy. That is not the same as a 1% improvement in time. The time benefit that an athlete gets from improved economy is highly variable. That's why Nike never made any claims about how much the Vaporfly could improve your times, they only advertised the 4% improvement in running economy, which is far easier to measure

High hopes wrote:

Salvitore Stitchmo wrote:

Okay, so a "legit 1.59" is only happening in those shoes if Kipchoge rolls back the clock a year and switches from Nike to Adidas.

Here is what we know about these shoes relative to performance.

There is nothing magical in these shoes except the lighter foam right? Do we all agree on this? The same meaningless plastic rods and the same upper as the Adios Pro - the shoe she wore in 2022 running 2.15.37

We also know, and this is scientifically proven, that 100g of weight is equal to a 1% performance benefit, and this is universal - men and women. The Adios pro (almost all versions 1-3) weigh in at about 215g. This shoe weighs in at about 140g. That is a 75g saving or a 0.75% performance benefit.

Today Tigst improved around 2.75%

Let's then remove the benefit of the product and we have an astronomical 2% further improvement in performance - and keep in mind this isn't from a 2hr30 level of running - she was already the 6th fastest ever and within 90 seconds of the current WR.

I'm sorry there is simply no way, repeat, no freaking way that performance is legit.

Correction: 100g of weight is equal to a 1% improvement in running economy. That is not the same as a 1% improvement in time. The time benefit that an athlete gets from improved economy is highly variable. That's why Nike never made any claims about how much the Vaporfly could improve your times, they only advertised the 4% improvement in running economy, which is far easier to measure