Mary Cain runs 1000m world junior record in 2:39.25

Mary Cain runs 2:39.25 to break the world junior record in the 1000 meters in Boston back in 2014. Indoor track is coming: http://bit.ly/2gqkL5m Visit FloTrack.com: http://flotrack.com Subscribe to FloTrack.com: http://bit.ly/2gPc9ZD Subscribe to FloTrack on YouTube: http://bit.ly/2gPaJyd Watch FloTrack documentaries: http://bit.ly/2fEVeUw Like us on Facebook: https://www.facebook.com/FloTrack Follow us on Twitter: https://twitter.com/flotrack Follow us on Instagram: https://www.instagram.com/flotrack_trackisback