The event has partnered with the Achilles New Zealand Hamilton chapter, which provides New Zealanders with disabilities the opportunity to participate alongside able bodied athletes in local mainstream events.
Lyn said most of the Achilles athletes would be training for the New York Marathon.
"They will be using our event as a build up towards that," she said.
Achilles athletes include a range of disabilities, from wheelchair-bound athletes to blind athletes.
Earlybird tickets are now on sale and will continue until April 30, with $10 off for half marathon runners and $5 off for the other events.
For more information on the new routes or to sign up visit www.hamiltonhalfmarathon.org.nz