Oklahoma Governor Republican Primary Winner
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This hub tracks 24 outcomes of this event, with the news signals that move them.
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Mike Mazzei100%
Other0%
What moved the odds?
30 AI-matched news signals available across this event, newest first. Entry price is the called side when the news hit; the signed return marks it against the outcome’s final price as of .
[UPDATE] Businessman Mike Mazzei wins the GOP nomination for Oklahoma governor with Trump's endorsement (first reported at 2026-08-25T04:01:45Z)
Trump's preferred candidate in the Oklahoma governor's runoff just won by less than 2,000 votes out of more than 370,000 cast. • • Despite Trump's endorsement, Mike Mazzei won just 50.3% of the vote.
Live results: Trump-backed Mike Mazzei defeats GOP challenger in Oklahoma gubernatorial primary
Live: Mike Mazzei wins the Republican primary runoff for Oklahoma governor, NBC News projects
Trump-backed Mike Mazzei wins the GOP nomination in the Oklahoma governor’s race
Mike Mazzei wins Republican nomination for governor in Oklahoma
Mike Mazzei will win the #OKGOV Republican primary runoff, defeating Gentner Drummond, CNN projects
Mike Mazzei will win the #OKGOV Republican primary runoff, defeating Gentner Drummond, CNN projects
Live: Trump-backed Mike Mazzei will win GOP gubernatorial runoff in Oklahoma, CNN projects
Decision Desk HQ projects Mike Mazzei wins the OK Governor Republican Runoff • • #DecisionMade: 10:47 PM EDT
DDHQ Race Update (est. 99% in): Oklahoma Governor Republican Runoff • • Mike Mazzei (R): 183,238 (50.3%) • Gentner Drummond (R): 181,127 (49.7%) • • Follow more results here: •
DDHQ Race Update (est. 99% in): Oklahoma Governor Republican Runoff • • Mike Mazzei (R): 183,238 (50.3%) • Gentner Drummond (R): 181,127 (49.7%) • • Follow more results here: •
DDHQ Race Update (est. 94% in): Oklahoma Governor Republican Runoff • • Mike Mazzei (R): 172,846 (50.3%) • Gentner Drummond (R): 170,491 (49.7%) • • Follow more results here: •
DDHQ Race Update (est. 94% in): Oklahoma Governor Republican Runoff • • Mike Mazzei (R): 172,846 (50.3%) • Gentner Drummond (R): 170,491 (49.7%) • • Follow more results here: •
Live: The Republican primary runoff for Oklahoma governor is very close. Mike Mazzei, a former state senator whom Trump endorsed, has a lead of less than a percentage point over his opponent Gentner Drummond, the state attorney general, with 90% of the votes reported. Fewer than 3,000 votes separate them.
Live: The Republican primary runoff for Oklahoma governor is very close. Mike Mazzei, a former state senator whom Trump endorsed, has a lead of less than a percentage point over his opponent Gentner Drummond, the state attorney general, with 90% of the votes reported. Fewer than 3,000 votes separate them.
DDHQ Race Update (est. 88% in): Oklahoma Governor Republican Runoff • • Mike Mazzei (R): 162,095 (50.4%) • Gentner Drummond (R): 159,300 (49.6%) • • Follow more results here: •
DDHQ Race Update (est. 88% in): Oklahoma Governor Republican Runoff • • Mike Mazzei (R): 162,095 (50.4%) • Gentner Drummond (R): 159,300 (49.6%) • • Follow more results here: •
DDHQ Race Update (est. 83% in): Oklahoma Governor Republican Runoff • • Mike Mazzei (R): 153,274 (50.5%) • Gentner Drummond (R): 150,093 (49.5%) • • Follow more results here: •
DDHQ Race Update (est. 83% in): Oklahoma Governor Republican Runoff • • Mike Mazzei (R): 153,274 (50.5%) • Gentner Drummond (R): 150,093 (49.5%) • • Follow more results here: •
DDHQ Race Update (est. 76% in): Oklahoma Governor Republican Runoff • • Mike Mazzei (R): 142,617 (50.4%) • Gentner Drummond (R): 140,463 (49.6%) • • Follow more results here: •
DDHQ Race Update (est. 76% in): Oklahoma Governor Republican Runoff • • Mike Mazzei (R): 142,617 (50.4%) • Gentner Drummond (R): 140,463 (49.6%) • • Follow more results here: •
DDHQ Race Update (est. 72% in): Oklahoma Governor Republican Runoff • • Mike Mazzei (R): 133,429 (50.3%) • Gentner Drummond (R): 131,636 (49.7%) • • Follow more results here: •
DDHQ Race Update (est. 72% in): Oklahoma Governor Republican Runoff • • Mike Mazzei (R): 133,429 (50.3%) • Gentner Drummond (R): 131,636 (49.7%) • • Follow more results here: •
#OKGOV Republican primary runoff: With about two-thirds of the vote in, Trump-endorsed Mike Mazzei currently leads by 1,607 votes out of 240,845
DDHQ Race Update (est. 53% in): Oklahoma Governor Republican Runoff • • Mike Mazzei (R): 98,417 (50.1%) • Gentner Drummond (R): 98,046 (49.9%) • • Follow more results here: •
DDHQ Race Update (est. 53% in): Oklahoma Governor Republican Runoff • • Mike Mazzei (R): 98,417 (50.1%) • Gentner Drummond (R): 98,046 (49.9%) • • Follow more results here: •
DDHQ Race Update (est. 37% in): Oklahoma Governor Republican Runoff • • Gentner Drummond (R): 69,194 (50.6%) • Mike Mazzei (R): 67,517 (49.4%) • • Follow more results here: •
DDHQ Race Update (est. 37% in): Oklahoma Governor Republican Runoff • • Gentner Drummond (R): 69,194 (50.6%) • Mike Mazzei (R): 67,517 (49.4%) • • Follow more results here: •
DDHQ Race Update (est. 27% in): Oklahoma Governor Republican Runoff • • Gentner Drummond (R): 51,454 (51.3%) • Mike Mazzei (R): 48,807 (48.7%) • • Follow more results here: •
What is this event about?
This market will resolve according to the winner of the Republican Primary for Governor of Oklahoma, scheduled to take place on June 16, 2026. Resolution will be based on the overall winner of the primary, including any potential second round or run-off.
If no 2026 Oklahoma Gubernatorial Republican Primary takes place, this market will resolve to “Other.”
The resolution source for this market will be the first official announcement of the results from the Oklahoma Republican Party; however, an overwhelming consensus of credible reporting may suffice.