Since OP never updated this with another team ,I did took Bayern for a spin:

Bundesliga has 34 matches, Bayern has drawn 7 games, lost 2, so a win of 25-9, which is already pretty bad as you would need at least 1.33 in winning odds just to make it even, an this get worse, in 25 games betting on the Byaenr you would have won 6.45 to 25 and lost 9, so constantly betting this season on Bayern would have ended with a -2.55 loss to a $1 bet.

Now on to the Martingale sequence.
Fortunately enough, Bayern has its defeats and draws spread so there are only two consecutive ones, taking the worst one and assuming you're betting for a $10 win each round:

Bayern Bochum 1.2, to win $10 you need to put down $50.
Union - Bayern , 1.3 , to win $60 you need to put down $200.
Bayern St Pauli, 1.12, you have already lost $250, the extra $10, so you need to win $260, so a 2170$ bet!

Worth the risks? No!