How do I race against the computer? Jovi Mirkovic November 02, 2017 18:25 Follow The Rokai has a race mode program to allow you to race against the computer. Follow the instructions below to set up a race. Related articles Can I change the units of measurement from kilometers to miles? How can I measure my heart rate when working out? Which exercises can I perform on the Rokai? An introduction to the Rokai Comments 0 comments Article is closed for comments.