January 28th: Matt Centrowitz, Jenny Simpson, Emma Coburn & Brenda Martinez Confirmed For Boston New Balance Indoor Grand Prix 2017 New Balance Indoor Grand Prix View LetsRun.com Event Coverage Press Release December 16, 2016 Download (PDF, 286KB) Related Professional Jumps Women's Running Men's Running Distance Mid-Distance Brenda Martinez Matt Centrowitz Emma Coburn PV Ekaterini Stefandidi Jenn Suhur Jenny Simpspon