AUBURN HILLS, Mich., Aug. 1 (Ticker) -- The Detroit Shock and Indiana Fever appear headed for a first-round postseason showdown. Ruth Riley did what she could to make sure the Shock have home-court advantage.

Riley's go-ahead jumper with 2:37 to play lifted the Shock to their fifth win in six games, a 70-66 victory over the Fever, who lost a crucial game in the Eastern Conference standings.

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Kara Braxton scored a season-high 16 points off the bench and Swin Cash and Katie Smith added 12 apiece for the Shock (19-8), who moved 2 1/2 games ahead of the Fever (17-11) in the East.

Detroit is in second place and Indiana sits third. The second- and third-place teams meet in the opening round of the postseason, and the teams split the four-game season series.

Riley scored just six points, but her last two were critical. She sank a jumper to give the Shock a 65-64 lead.

Cash added a free throw at the 1:13 mark and Smith sank a pair from the line for a 68-64 lead with 24 seconds to go. A jumper by Anna DeForge halved the deficit, but Smith made two more foul shots to close the scoring.

Deanna Nolan had nine points, seven rebounds and six assists for the Shock, who shot 39 percent (23-of-59) from the field and held a 38-32 rebounding advantage. Cheryl Ford swept 10 boards.

Tamika Catchings scored 22 points and Tamika Whitmore added 21 for the Fever, who shot 40 percent (25-of-62).

Indiana made 10-of-10 free throws while Detroit sank 20-of-29.