In 2019, which runner became the first person to run a marathon in

The wild physics of the modern running shoe

Chapter 1

The bubble wrap under your feet

Chapter 2

The secret curved plate

Chapter 3

The battle for grip

Chapter 4

The speed ban

YOUR GOAL

Master of The wild physics of the modern running shoe

Ch 4 · The speed ban
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nike The Speed Ban

Forty mil stack, / just one plate, / lock the speed gate.

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Marathon shoes are capped at 40mm to stop them from acting like mini-trampolines.

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Banning the multi-plate spring board shoes

nike Three carbon plates inside Kipchoge's prototype shoe act like a mechanical spring

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Why sports officials drew the forty-millimeter line

nike A bright graphic line measures the forty-millimeter sole of a high-tech running shoe.

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Fun Fact

Barefoot gold: In 1960, Ethiopian runner Abebe Bikila won the Olympic marathon barefoot because his shoes didn't fit, setting a world record.

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Glossary
stack height (noun)
The thickness of a shoe's sole, measured from the ground to the insole. In 2020, World Athletics capped this measurement at 40 millimeters to regulate high-tech marathon footwear.

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Gossip

Are super shoes fair?

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Quiz

In which city did Eliud Kipchoge complete his historic under-two-hour marathon run?

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Quiz

What is the maximum sole thickness allowed by World Athletics for official competition shoes?

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Quiz

What term do critics use to describe the unfair advantage gained from advanced athletic gear?

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Quiz

In 2019, which runner became the first person to run a marathon in under two hours?

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Quiz

What is the term 'stack height' used to describe in running shoe engineering?

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Quiz

How many rigid carbon-fiber plates are officially allowed inside a running shoe under World Athletics rules?

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Quiz

Which legendary runner won the 1960 Rome Olympic marathon while running completely barefoot?

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Quiz

What was the thickness, or stack height, of the prototype shoes worn during the sub-two-hour marathon run in 2019?

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