Yikes. Ya just can't get behind on this...

 Recalculated because we're in Tennessee!!!  BioGingko, take me away!
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Here we go:

Wednesday, 1/21
Mike:  45 cardio = 4.5 miles
= +4.5 miles

Thursday, 1/22
Mike:  55 cardio = 5.5 miles
Matt:  20 cardio = 2 miles
Holly:  20 min cardio   = 2 miles
Brian:  30 min cardio, 60 min weights = 9 miles
Amber:  30 min cardio, 20 min weights = 5 miles
= +23.5 miles

Friday, 1/23
Mike:  60 min cardio = 6 miles
Amber:  30 min cardio, 20 min weights = 5 miles
Brian:  30 min cardio, 60 min weights = 9 miles
Matt: 20 cardio = 2 miles
= +22 miles

Saturday, 1/24
Mike:  40 min cardio = 4 miles
Brian:  60 min cardio, 60 min weights = 12 miles
Matt: 30 cardio = 3 miles
= +19 miles

Sunday, 1/25
Mike:  60 min cardio = 6 miles
Brian:  60 min cardio, 60 min weights = 12 miles
Matt: 30 cardio = 3 miles
= +21 miles

Monday, 1/26
Amber: 55 min cardio, 30 min weights = 8.5 miles
Brian:  30 min cardio, 60 min weights = 9 miles
Matt: 20 cardio = 2 miles
= +19.5 miles

Tuesday, 1/27
Amber:  50 cardio = 5 miles
Brian: 30 min cardio, 60 min weights = 9 miles
Rich:  135 min hiking = 13.5 miles
Karolyn: 135 min hiking = 13.5 miles
Matt: 20 cardio = 2 miles
= +43 miles

Eh, we're probably still in Tennessee with some dueling banjos.