MF Loops

Haing a tough time at the 2nd loop... terrible.. not panting that hard but just that my legs just dun feel like moving at all.. have problems with gg up slope.. felt like i was in slow motion.. dear overtook me at the end of my 2nd loop (his 3rd).. asked me to run slowly .. maybe my technique is wrong.. or am i feeling tired from mon's run? hmmm.....

Loop 1: 10:21:91
Loop 2: 11:12:85
Loop 3: 10:44:73
Loop 4: 10:49:49
Loop 5: 7:08:21 (up to stairs)

Total: 50:17:19