“The winning time was fitted to a rational fraction curve for the quadruped records (r2 = 0.823, adjusted r2 = 0.787, F = 26.9, P < 0.05) and to a linear curve for the biped records (r2 = 0.952, adjusted r2 = 0.949, F = 336.1, P < 0.05; Figure Figure1).1).”

Unfortunately, a linear extrapolation implies that at some time, the bipedal 100m will take negative time…

Also https://www.frontiersin.org/journals/bioengineering-and-biot...