Played in tough conditions, Seymour claimed its 12th win by grinding out at a 9.9 (63) to 5.3 (33) victory.
Sitting on 38 points, the Bears are followed closely by rival Shepparton United on 36 points with two rounds remaining.
Ryley Yenco was the pick of the Bears' players, while Jack Moylan and Hugo Ingham gave plenty of support in Saturday's loss at Kings Park.
Seymour's Cain Murray booted three goals and shone in attack, while Clayton Salmon and Tayte Lewis were standouts for the winners.
Elsewhere, Rochester moved into fifth position with a dominant 12.14 (86) to 3.2 (20) win against Shepparton Swans at Princess Park.
Kyle Waters was at his best for the Tigers, while Blake Evans (two goals), Grant Fuller and Nash Hocking (three) gave impressive support.
Ethan Warburton led the way for the Swans.
Zac Clohesy and Marco Martello chipped in with quality efforts too.
Lastly, Mooroopna was far too strong for Tatura in their contest at Tatura Park, clinching a 16.13 (109) to 1.2 (8) win.
It was a superb all-round performance from the young Cats, who still remain inside the top two after their 101-point win.
Mooroopna's James Nethersole was a standout alongside Jai Carn (three goals), Darcy Russell (four) and Dom Gugliotti (two).
Tatura's Sean McAllister can hold his head high with a best afield performance, as well as Harry Murdoch and Tom Eyles.
Echuca, United and Kyabram were winners on the first weekend of the split round.
12°C