The Maine Marathon, Half Marathon and Marathon Relay will be held Sunday, Oct. 3, starting at 7:45 a.m. in Portland.

The entry fees through July 31 are $55 for the marathon, $40 for the half marathon and $100 for the relay, which is for teams of two to four runners. After July 31, the fees increase to $65 for the marathon, $50 for the half marathon and $120 for the relay. There is a limit of 3,500 combined entries for the marathon and half marathon, and entries close at midnight on Sept. 26.

Online registration or a printable entry form are available at www.mainemarathon.com.