Official top speed in mps?

I’ve been searching here on the site but can’t seem to find the answer to this. From official, data obtained, what does a .83 split equal in terms of mps? I’ve seen 12.05mps and 12.2mps. (This excludes the estimated .81 splits for both Johnson and Lewis which I believe comes out to 12.35 mps.) Thanks in advance.

To find the speed in:

meters per second: 10/SPLIT
Km/hour: 36/split
Miles per hour: 22.5/split

Hope my maths is still up to it. Anyone want to correct me!


so 0.83 = 12.05 m/s

0.81= 12.35 m/s