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Michael Arnstein

This Week In Running: July 17, 2017

This Week In Running’s trail and ultra recap for July 17, 2017.

This Week In Running: January 16, 2017

This Week In Running’s trail and ultra recap for January 16, 2017.

This Week In Running: October 31, 2016

This Week In Running’s trail and ultra recap for October 31, 2016.

TraiLive Season 2, Episode 2: Hurt 100 And Timothy Olson On Saunas And Nutrition

TraiLive's Season 2, Episode 2 features interviews with 2015 HURT 100 champions Michael Arnstein and Amy Sproston, and an interview…

This Week In Running: January 19, 2015

The This Week in Running report on trail and ultrarunning for January 19, 2015.

2013 Leadville 100 Preview

A preview of the 2013 Leadville 100.

2012 JFK 50 Mile Results: King and Greenwood Set Course Records

Results of the 2012 JFK 50 Mile.

2012 JFK 50 Mile Live Coverage

Live coverage of the 2012 JFK 50 mile.

2011 JFK 50 Mile Results

Results of the 2011 JFK 50 mile won by David Riddle in a course record time of 5:40:44 and Cassie…

2011 JFK 50 Mile Men’s Preview

A preview of the men's field at the 2011 JFK 50 Mile.

Ian Sharman Destroys Rocky Raccoon 100 Course Record

Race reports and results from 2011 Rocky Raccoon featuring Ian Sharman's 12:44:33!

Leadville 100 Men’s Analysis with Krupicka & Koerner Interviews

iRunFar previews the 2010 Leadville men's field, including interviews with Anton Krupicka and Hal Koerner.