You can do it. You sure don't have to be skinny as a rail to be an excellent distance runner. A couple guys I run with are far from "petite", and I also run with one of the guy's dad (on the far left) who is 62 and still does very well (ran a 26 minute 5k a month ago in Candler Park on a super hilly course).
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I always knew @Laufen was black! And y'all thought only @Leshaire was my only black friend on here.