Green River Marathon, Relay, Half & 50K Kent, WA   Jun 6, 2026

The Green River Marathon is a fun Seattle-area run in early June (first Saturday) is the Green River Marathon/Relay. Marathon Maniac, Eastside Runners and Interurban Running Club member Steve Barrick and Marathon Maniac Jim Anderson put on this run with the help of many volunteers. It starts and finishes at Three Friends Fishing Hole.

HALF MARATHONERS WILL RUN TWO OUT AND BACKS.
MARATHONERS WILL RUN FOUR OUT AND BACKS.
50K WILL RUN FOUR OUT AND BACKS AND ANOTHER 2.4 MILE OUT AND BACK.

If you don’t want to run the entire 26.2 miles, then get together some friends and make it a relay with any number of participants. Everyone is encouraged to participate by running as far as they like. In past years we have had runners running as little as 2.5 miles and as much as 22.5 miles. There are no formal rules or divisions, the run is just for fun and to stay in shape.