The Celtics locked up the No. 1 seed in the Eastern Conference by winning its regular-season finale, but that doesn’t mean Boston is heavily favored. While some are calling the Celtics the worst No. 1 seed in NBA history, Vegas oddsmakers made Boston a relatively low -480 favorite to win its first-round series against the Chicago Bulls.

MORE: Championship odds for every NBA playoff team

In comparison, the Lebron James-led Cleveland Cavaliers check in at huge -2000 favorites as the No. 2 seed. Out West, the top-seed Golden State Warriors (-7000) and San Antonio Spurs (-1000) are also giant favorites. Cleveland and San Antonio each won Game 1 in their respective series.

Despite losing Game 1, the Raptors (-150) and Clippers (-240) are still favorites to win against the Bucks and Jazz, respectively.

Here are the latest odds for every first-round series as of Sunday, April 16, via Vegas Insider.

NBA playoff odds: Eastern Conference series

The first-round is a best of seven series (2-2-1-1-1).

8-Chicago vs. 1-Boston 1-Celtics (-480) 8-Bulls (+380)7-Indiana vs. 2-Cleveland (Cavs lead 1-0) Cavaliers (-2000) Pacers (+1000)6-Milwaukee vs. 3-Toronto (Bucks lead 1-0) Raptors (-150) Bucks (+130)5-Atlanta vs. 4-Washington Wizards (-240) Hawks (+200) 

MORE: Sporting News NBA writer Sean Deveney unveils his East picks

NBA playoff odds: Western Conference series

8-Portland vs. 1-Golden State Warriors (-7000) Trail Blazers (+2000) 7-Memphis vs. 2-San Antonio (Spurs lead 1-0) Spurs (-1000) Grizzlies (+650)6-Oklahoma City vs. 3-Houston Rockets (-380) Thunder (+300)5-Utah vs. 4-Los Angeles Clippers (Jazz lead 1-0) Clippers (-240) Jazz (+200)

MORE: Western Conference picks by SN’s Sean Deveney