Did some more looking and came up with this!
Ed Pendowski Portage 2 Seasons 30-2, 33-2
Terry O'Niel Westfield 2 Seasons 25-5, 30-4
John Henry Harrison WL 2 Seasons 39-3, 28-3
Quinn Harris Cascade 2 Seasons 28-6, 22-1 (still duals left)
Lance Bheeler Mishawaka 3 Seasons 23-2, 23-5, 23-4
Ray Black Jr Madison 3 Seasons 19-3, 25-3, 23-4
Kevin Blundell Monrovia 3 Season 18-2, 18-2, 20-2
Matt Schoettle Perry Meridian 4 Seasons 12-1, 17-1, 16-2, 10-5
Mark Hidalago River Forest 4 Seasons 18-3, 5-0, 20-1, 18-1
John Smith Muncie SouthSide 5 Seasons 10-0, 10-0, 11-1, 10-2, 12-1
Mike Goebel Evansville Mater Dei 5 Seasons 10-1, 11-1, 9-0-2, 14-0, 12-0
Tim Klingensmith Jay County 6 Seasons 10-0, 9-1, 10-2, 9-1, 11-2, 15-3
Everyone here hit 50 wins in less than 60 duals from what I can gather.