15 Charts That'll Only Mean Something To People Who Love Running

They say "obsessed" like it's a bad thing.

1.

Sally Tamarkin / BuzzFeed

2.

Sally Tamarkin / BuzzFeed

3.

Sally Tamarkin / BuzzFeed

4.

Sally Tamarkin / BuzzFeed

5.

Sally Tamarkin / BuzzFeed

6.

Sally Tamarkin / BuzzFeed

7.

Sally Tamarkin / BuzzFeed

8.

Sally Tamarkin / BuzzFeed

9.

Sally Tamarkin / BuzzFeed

10.

Sally Tamarkin / BuzzFeed

11.

Sally Tamarkin / BuzzFeed

12.

Sally Tamarkin / BuzzFeed

13.

Anna Borges / BuzzFeed

14.

Sally Tamarkin / BuzzFeed

15.

Sally Tamarkin / BuzzFeed