Eagles defeated the league leaders North by 58 points. The previous round South defeated the league leaders Eagles by 66 points.
This is the first time since Rounds 7 and 8 1980 when the top side two weeks in a row has lost by 50 points or more.
In Round 7 1980, Port beat top placed Glenelg by 51 points. The following round they beat top placed West Torrens by 90 points to head the ladder themselves.
Others to have come close
In 1993 Port lost by 75 points to Norwood in Round 14. They had the bye but still retained top spot. They then lost to Glenelg by 84 points in Round 16.
In 1991 North beat top placed Glenelg by 74 points in Round 5. Then two rounds later they beat top placed Eagles by 131 points, to claim 1st place.
In 1977 top placed Central District lost to West Adelaide by 78 points in Round 2. In Round 4 1st placed South lost to Glenelg by 67 points.
In 1941 top placed Sturt lost to last place South Adelaide by 58 points in Round 9. Two rounds later they defeated top placed West by 62 points to reclaim top spot.
In 1934 West Torrens lost the top spot to Port when they lost by 71 points to Port in the last Round (17). Torrens in Round 1 the following year were in 1st place, only to lose it again against Port, losing by 54 points.