The operator of vessel 1 was preparing for a race at a boat ramp near the Greater Dayton Rowing Association building.  The operator loaded a buoy attached to a cinder block into the vessel and began to paddle up river.  

After launching the vessel capsized.  The operator initially hung onto the vessel and called for a witness to get another boat.  When the witness was unable to get another boat (they were all locked to the dock) the operator of vessel 1 attempted to swim back to shore but disappeared below the water.

The victim was located downstream below the low head dam.  The vessel was recovered along with 2 paddles and an old life jacket.
Great Miami River
Dayton                        