The Lightning took the lead for good early in the third period on a power play goal. For the longest time it appeared like Point would pass but at the last second he fired a shot over Bernier's shoulder from a tough angle.
The win was Tampa Bay's third-straight overall and extended their winning streak over Detroit to 16 games.
McElhinney got the start for Tampa Bay in the second half of the back-to-back and was sharp for most of the night. McElhinney didn't face a ton of pressure, making only 19 saves on 20 shots but came up with three saves on Detroit breakaways.
The Bolts now hit the road for a four-game road trip that begins on Tuesday night in Buffalo against the Sabres.
Scoring Summary
1st Period
No scoring
2nd Period
TBL | 4:10 Ondrej Palat (11) - Kevin Shattenkirk
DET | 17:54 Robby Fabbri (10) - Filip Hronek, Andreas Athanasiou
3rd Period
TBL | 5:33 Brayden Point (15) - Victor Hedman, Steven Stamkos - PPG