That is incorrect....Their twitter account states this: DXB Parks & Resorts @dxbparksresorts Oct 12
"5 #rollercoasters at #motiongateDubai with a total length track of 2,593m – that’s enough to run the entire length of the Burj Khalifa x3"
The sum of all the roller coaster in the park would have a length of 2539m not that coaster.