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100K Training Plan
Out and Back's free, customizable training plan for 100K distances.
Mon
Tue
Wed
Thu
Fri
Sat
Sun
4
mi
Recovery
Rest
4
mi
Speed
Rest
4
mi
Normal
Rest
12
mi
Long Run
26
mi
6
mi
Recovery
Rest
6
mi
Speed
Rest
6
mi
Normal
Rest
16
mi
Long Run
32
mi
4
mi
Recovery
Rest
4
mi
Speed
Rest
4
mi
Normal
Rest
14
mi
Long Run
28
mi
6
mi
Recovery
Rest
6
mi
Speed
Rest
6
mi
Normal
Rest
18
mi
Long Run
36
mi
6
mi
Recovery
Rest
6
mi
Speed
Rest
6
mi
Normal
Rest
16
mi
Long Run
34
mi
6
mi
Recovery
Rest
6
mi
Speed
Rest
6
mi
Normal
Rest
20
mi
Long Run
38
mi
6
mi
Recovery
Rest
6
mi
Speed
Rest
6
mi
Normal
Rest
18
mi
Long Run
38
mi
8
mi
Recovery
Rest
8
mi
Speed
Rest
8
mi
Normal
Rest
24
mi
Long Run
46
mi
6
mi
Recovery
Rest
6
mi
Speed
Rest
6
mi
Normal
Rest
20
mi
Long Run
42
mi
10
mi
Recovery
Rest
10
mi
Speed
Rest
10
mi
Normal
Rest
28
mi
Long Run
56
mi
8
mi
Recovery
Rest
8
mi
Speed
Rest
8
mi
Normal
Rest
24
mi
Long Run
50
mi
10
mi
Recovery
Rest
10
mi
Speed
Rest
10
mi
Normal
Rest
30
mi
Long Run
58
mi
8
mi
Recovery
Rest
8
mi
Speed
Rest
8
mi
Normal
Rest
26
mi
Long Run
54
mi
12
mi
Recovery
Rest
12
mi
Speed
Rest
12
mi
Normal
Rest
34
mi
Long Run
68
mi
10
mi
Recovery
Rest
10
mi
Speed
Rest
10
mi
Normal
Rest
30
mi
Long Run
64
mi
14
mi
Recovery
Rest
14
mi
Speed
Rest
14
mi
Normal
Rest
40
mi
Long Run
80
mi
12
mi
Recovery
Rest
12
mi
Speed
Rest
12
mi
Normal
Rest
34
mi
Long Run
72
mi
14
mi
Recovery
Rest
14
mi
Speed
Rest
14
mi
Normal
Rest
44
mi
Long Run
84
mi
12
mi
Recovery
Rest
12
mi
Speed
Rest
12
mi
Normal
Rest
38
mi
Long Run
78
mi
16
mi
Recovery
Rest
16
mi
Speed
Rest
16
mi
Normal
Rest
50
mi
Long Run
96
mi
14
mi
Recovery
Rest
14
mi
Speed
Rest
14
mi
Normal
Rest
44
mi
Long Run
92
mi
20
mi
Recovery
Rest
20
mi
Speed
Rest
20
mi
Normal
Rest
58
mi
Long Run
98
mi
Recovery
Rest
16
mi
Speed
Rest
16
mi
Normal
Rest
16
mi
Long Run
48
mi
Recovery
Rest
Speed
Rest
Normal
Rest
Long Run
62
mi