Rahal Letterman Lanigan Racing Bommarito Automotive Group 500 – Gateway Motorsports Park, Madison, Illinois Pre-Race Notes Round 15 of 17 in the 2018 Verizon IndyCar Series DATE:                                      August 24-25, 2018 PRACTICE BROADCASTS:       Live on www.Indycar.com with analysis from the Advance Auto Parts INDYCAR Radio Network (AAPIRN) and on the INDYCAR YouTube channel (www.youtube.com/indycar) on Friday beginning at 1:15…