January | February | March | April | May | June | July | August | September | October | November | December
| April | ||
| Apr 25 | Animal Orphanage 5K Pet Run/Walk | Old Town |
| Apr 24 | 3rd Annual Epic Sports Rabbit 4 Mile Trail Run | Bangor |
| Apr 24 | Bangor Savings Bank Fiddlehead Run for the Arts | Scarborough |
| Apr 24 | Papa’s 5K Run Walk | Oakland |
| Apr 18 | 5th Annual Get Fit 5K | Tenants Harbor |
| Apr 18 | Boys and Girls Club Patriots Day 5 Miler | Portland |
| Apr 17 | Joshua’s Book of Dreams 5K | York |
| Apr 17 | Unity College Spring 5k Races | Unity |
| Apr 11 | Race for Education | Saco |
| Apr 11 | April Amble 5K | Scarborough |
| Apr 10 | 3rd Annual Jerry Kaufman Memorial 5K | Ellsworth |
| Apr 10 | Luv2Run Portland 5K #1 | Portland |
| Apr 10 | Fly Like an Eagle 5K | South China |
| Apr 10 | UMPI Spring Runoff 5K | Presque Isle |
| Apr 3 | Gorham Lions Club 5K | Gorham |