I also have GPS’ed my horse.
My 15.3 HH MFT mare – she likes to fly <VBG> !!!
dog walk (QH type walk) = 3.8,
MFT walk = 4.5 to 5.5 MPH,
Rack/FT = 7-16.5 MPH,
canter up to 29.5 MPH not full out (preferred canter is 12 MPH).