Super Bowl LXI odds: 49ers join Rams on top, just ahead of Bills, Ravens

After beginning the season as the clear Super Bowl favorites at +500, the Los Angeles Rams ' grip on the top spot has loosened significantly. After a 2-3 start, they are now tied with the division rival San Francisco 49ers at +700 to win Super Bowl LXI. L.A.'s latest loss came via an overtime thriller Monday night to the Buffalo Bills , who are tied for the second-best odds on the board with the Baltimore Ravens at +800.