Sprinter Mike Berry would extend the gap to 4.7 seconds after his 400m leg, handing off to Sowinski after a 46.40 split. Racing on his favorite indoor oval (the same oval in which he had set a then-600 meter American record in 2013), Sowinski used The Armory's crowd to his advantage. Sowinski seamlessly passed the baton to Casey out front, with Team Ireland 3.7 seconds adrift. That's when things got interesting. In the opening 600 meters of the anchor mile leg, Ireland's Ciaran O'Lionaird ferociously gained ground and caught up to Casey. With half a mile remaining, the Nike Oregon Track Club teammates were running within a step of one another. Team Ireland also dipped under the old world record, finishing second in 9:25.37 European all-time best. New Jersey-New York Track Club rounded out the top three in 9:27.16.
World leading men mile by Canadian Cameron Levins 3:54.74 ahead of Briton Chris O´Hare 3:57.26. Another World lead over 2 miles for Levins 8:15.38 (35 minutes after the mile) beating Japanese Suguru Osako 8:16.47 Asian all-time best, Ben Blankenship 8:16.53 and Galen Rupp 8:17.24. Ajee Wilson won the women 800 m in 2:01.63 ahead of Treniere Moser 2:01.79 and Charlene Lipsey 2:02.20. Mary Cain was fifth 2:02.75. Jordan Hasay topped the 2 miles for top time 2015 9:38.28 just ahead of Nicole Tully's 9:38.38.
Trinidad´s Lalonde Gordon got the 300 m in 32.57 ahead of Manteo Mitchell 32.81 and Jamaican Jermaine Brown 32.91. In the high school section excellent 33.17 by Rai Benjamin. In girls high school impressive 37.49 for Sydney McLaughlin. Canadian record holder Shawn Barber cleared again 580 in the pole vault and Olympic medalist Will Claye registered world leading 16.93 in the triple jump beating Omar Craddock 16.87. In women high jump Jeanelle Scheper of St. Lucia with 190 beat triple mother Chaunte Lowe 185. With help from RRW.