In what was always billed as a tough road trip to Mangoplah, it lived up to expectations for the Swans, who fell to an 86-point defeat at the hands of the Goannas.
The Goannas made a strong start in the first quarter, having nine scoring shots to Griffith's three but weren't out of reach to be leading by 16 points at the first break.
It wasn't until the second half where the Swans lost touch, with Mangoplah kicking 13 goals in the final two quarters to walk away 20.17 (137) to 8.3 (51) victors.
Kahlan Spencer had a good day in front of goal kicking three majors while Riley Irvin, Jack Powell, James Toscan, Dean Bennett and Jordan Whitworth kicked one each.
The reserve graders kept their undefeated start to the season alive with four goals to Connor Bock, helping them to a 7.8 (50) to 6.4 (40) victory while the under 17.5s came away with a 42-point win with Patrick Payne and Angus Brown kicking four goals each.
The Swans will prepare for the defending premiers Wagga Tigers next weekend.
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