Looks like they went in one big circle. What is LBSL Tour?
It's a "DE-Tour". Reportedly cost them three hours. Notice the spur on their route part way up the right side of the loop? The left half of the loop is the Mountaineers Route. The left half is the MMWT (Main Mt Whitney Trail).
The big loop is what people do by going up the MR, and descending the MMWT.