An argument can be made that Super Bowl LIV is the most unpredictable NFL championship game since the merger. With a little over a week remaining until the Kansas City Chiefs and San Francisco 49ers meet in Miami, the point spread is tied for the smallest in Super Bowl history.

Kansas City is a one-point favorite, according to OddsShark. The betting line is up to 1.5 points at some sportsbooks, but most Las Vegas and offshore oddsmakers are giving San Francisco a single point.

Three Super Bowls have featured a one-point spread. 

The undefeated 1972 Miami Dolphins were only laying a point against the Washington Redskins when they won Super Bowl VII 14-7. The San Francisco 49ers beat the Cincinnati Bengals 26-21 as one-point favorites in Super Bowl XVI. Super Bowl XLIX moved to a pick’em in the days leading up to the game, but the Seattle Seahawks were favored by a point just a few hours before Malcolm Butler’s goal-line interception that gave the New England Patriots a 28-24 victory.

No Super Bowl has been a pick’em at kickoff.

Six of the last nine Super Bowls have featured a betting line of a field goal or less. Only one of those contests was decided by more than one score.

Favorites are 3-9 against the spread in the last 12 Super Bowls. The New England Patriots covered a 2.5-point spread when they defeated the Los Angeles Rams a year ago.