Republican voters chose Chase in the five-way race for that seat, giving her almost 46 percent of the vote, with her next closest competitor, John Acton, getting 23 percent.
Also in that race, Trisha Castillo received 14.75 percent, Michael McCord, 8.6 percent, and Carol Springer, a little more than 7 percent.
Because there is a write-in Democratic candidate running for the District 2 seat -- Margo Feldmiller -- Chase, who received 1,468 votes, can't claim outright victory.
As a write-in, Feldmiller has to received at least 38 write-in votes to advance to the November election to run against Chase. Those write-in votes haven't yet been counted, according to election officials.
Pinal County Elections Director Steve Kizer says there still are thousands of uncounted ballots being processed. He anticipates that by Friday or Saturday, they will all be tallied.
In the Democratic primary, Pete Rios held on to his seat with nearly 56 percent of the vote in District 1 -- the Democrats' only contested race. His challenger, Mary Bateman Espinoza, received nearly 44 percent of the 3,309 votes cast.
The uncontested Democratic candidates in Districts 3, 4, and 5 -- David Snider, Henry Wade, and Maxine Brown -- will face off against the Republicans who emerged victorious on Tuesday.
Among those, it appears that Republican Gem Cox, who received 56.5 percent, or 948 votes, in the District 1 race will edge out Jim Montano, who ended the night with about 42 percent, or 710 votes.
There is an Independent candidate, Alicia Bristow, running for District 1. That pits her against Cox and Rios in the November 6 General Election.
Stephen Miller has an seven-point lead in the GOP race for District 3, with 53.66 percent, while his challenger Tom Hollenbach garnered 46 percent.
Miller probably will face Democrat David Snider and Independent Roberto Almaguer in November.
In District 4, it appears that Anthony Smith is in the lead with 33.17 percent of the votes, but Nancy Discher sits at an uncomfortably close second with 32.15 percent -- that's a 43 vote difference. And Fred Mackenzie isn't far behind with 29 percent of the vote. Raymond Petrulsky received only 5 percent.
Since the results are still unofficial -- and there could be outstanding ballots that remain to be counted -- it's unclear who will face off against Henry Wade, a Democrat for that spot on the Board of Supervisors.
The race for the District 5 seat was also a four-way race among Republican candidates, and Todd House emerged on top with 40 percent of the vote, or 1,830 votes. Trailing him were Pat Prince, who received 32 percent, Bill Dunbar, almost 19 percent, and John T. Enright, with just under 8 percent.
Looks like it's going to be Maxine Brown against Todd House for the District 5 seat.