The venue was packed to capacity with the main game of the day played in sunny and windy conditions.
The Eagles looked the more dangerous side in the opening minutes as they dominated possession.
But it was the Mioks who got the first points from a penalty successfully converted by -eighth Philemon Taim.
In their next visit to the Eagles half, a dangerous tackle on a Mioks player presented the chance for them to extend their lead.
Taim attempted to convert from 25 metres out but his kick just sailed wide.