June run-off elections in Texas, explained
If no candidate wins a majority on May 2, city and mayoral races head to a June 12, 2027 run-off — with far lower turnout and a different playbook. School board races skip it entirely.
In Texas, winning a May local election isn't always the end of the race. For city council and mayoral seats, you don't just need the most votes — you need a majority. If no candidate clears 50% on Saturday, May 1, 2027, the top two advance to a run-off on Saturday, June 12, 2027. That second election is a different animal: turnout collapses, the field narrows to a head-to-head, and the campaign that adapts fastest usually wins. This guide explains when and why a run-off happens, why turnout falls off a cliff, how strategy shifts — and the crucial exception that catches candidates off guard: school board (ISD) races have no run-off at all.
Key takeaways
- City and mayoral races require a majority — if no one wins one on May 2, the top two go to a June 12, 2027 run-off.
- Frisco ISD and most Texas trustee races win by plurality — the most votes wins outright, with no run-off.
- Run-off turnout typically collapses versus the May election — the electorate shrinks to your most committed voters.
- A run-off is a new race: re-bank your supporters, win over the eliminated candidates' voters, and don't assume the May result carries over.
When does a Texas race go to a June run-off?
A run-off is triggered by majority rule. In most Texas city and mayoral elections, a candidate must win more than 50% of the vote to be elected outright. When three or more candidates split the vote and no one clears that bar, the law sends the top two finishers to a run-off. For the 2027 cycle, local run-offs fall on Saturday, June 12, 2027 — roughly six weeks after the May 2 Uniform Election Date. The exact run-off date and rules can vary by jurisdiction, so always confirm with your filing authority.
ISD trustee races are the big exception
School board (ISD) trustees — including Frisco ISD — are typically elected at-large by plurality. That means the candidate with the most votes wins, even with far less than 50%, and there is no run-off. If you're running for trustee, your entire June plan should be empty. Confirm your seat's rule with your filing authority before you bank on it.
Why does run-off turnout collapse?
May local elections already draw a small, high-propensity electorate. Run-offs draw an even smaller one. The headline race that pulled people out in May is over, the calendar has moved into summer, and many casual voters simply don't come back six weeks later. The result is a turnout cliff: a meaningful share of the May electorate doesn't return for June. For candidates, that flips the math. The persuasion battle matters less; the mobilization battle is everything. Whoever does the better job re-contacting and re-banking their supporters in a compressed window tends to win — sometimes with a raw vote total well below their May number.
The smaller the electorate, the more each contact matters
In a low-turnout run-off, a few hundred votes can decide a city seat. That makes a disciplined early-vote chase and a tight GOTV plan far more valuable per dollar than any new ad. You're not finding new voters; you're guaranteeing the ones you already have.
How does run-off strategy differ from the May race?
Treat the run-off as a brand-new campaign with a six-week clock, not a continuation of May. Three shifts matter most:
- Re-bank your base immediately. The supporters who voted for you in May are your foundation — but their votes don't carry over. Identify them fast and get them to vote early in the Collin County early-voting window.
- Compete for the eliminated candidates' voters. The third-, fourth-, and fifth-place finishers' supporters are now up for grabs. Winning even a slice of them often decides the run-off.
- Compress your timeline. With weeks instead of months, you can't slow-build name ID. Lead with mobilization — direct contact, texting, and turnout — over broad awareness.
| Factor | May 2 general | June 13 run-off |
|---|---|---|
| Win condition (city/mayor) | Majority, or advance to run-off | Most votes between the top two |
| Turnout | Low (typical local May) | Even lower — drops sharply |
| Field | Often crowded | Head-to-head, two candidates |
| Timeline | Months to build | About six weeks |
| Winning move | Persuade + turn out | Re-bank base + capture freed voters |
| ISD trustee races | Win by plurality | N/A — no run-off |
Run a six-week run-off like a 90-day campaign.
Mandate keeps your May voter universe live so a run-off isn't a cold start: it re-segments your identified supporters, flags the voters freed by eliminated candidates, and runs texting, the field app, and Texas-ready compliance from one login. Tell it you're in a June 13 run-off and get a day-by-day plan.
How much money and time should a run-off take?
More than candidates expect. A run-off means another round of mail, texting, and turnout operations on a compressed budget, and your campaign finance obligations continue — you'll still file the required pre-election reports for the June race, so keep your treasurer and compliance current. Plan for the possibility of a run-off from day one of your May campaign: hold back some budget, keep your volunteer corps warm, and don't let your data go stale. The candidates who treat June as an afterthought are the ones who lose it.
The bottom line
A June run-off in Texas happens when no city or mayoral candidate wins a majority on May 2 — sending the top two to Saturday, June 12, 2027 in front of a much smaller electorate. Win it by re-banking your base, capturing the voters freed by eliminated candidates, and moving fast. And remember the exception: ISD trustee races win by plurality and never go to a run-off. Confirm your seat's rule with your filing authority, then plan for both outcomes. New to the calendar? Start with the Collin County 2027 election calendar or see how Mandate keeps a run-off plan ready before you need it.
Frequently asked questions
When is the 2027 Texas local run-off?
Local (city and county) run-offs in 2027 fall on Saturday, June 13 — about six weeks after the May 2 Uniform Election Date. Confirm the exact date and rules with your filing authority.
Why does a Texas city race go to a run-off?
Most Texas city council and mayoral races require a majority — more than 50% of the vote. If a crowded field means no candidate clears that bar, the top two advance to a run-off.
Do Texas school board races have run-offs?
No. Texas ISD trustees are typically elected at-large by plurality, so the candidate with the most votes wins outright — even below 50% — with no run-off. Confirm your district's rule with your filing authority.
Why is run-off turnout so much lower?
The marquee May race is over, the calendar has moved into summer, and casual voters often don't return six weeks later. Turnout drops sharply, which makes mobilizing your committed supporters the decisive factor.
How is run-off strategy different?
Treat it as a new race on a six-week clock: re-bank the supporters who voted for you in May, compete hard for the voters of eliminated candidates, and lead with turnout over persuasion.
Run your whole campaign on one platform.
Mandate builds your voter universe, walk lists, GOTV, and Texas-ready compliance — start to finish, in one login. Tell us your race and we'll map it.
Keep reading
All resourcesCollin County 2027 Election Calendar
Treasurer first, file by mid-February, early voting in late April, Election Day Saturday, May 1, 2027, and a city run-off June 13. The canonical 2027 dates page for Collin County candidates.
The Texas May Uniform Election Date, Explained
Almost every local nonpartisan race in Texas — city council, mayor, school board — is decided on the May Uniform Election Date. In 2027 that's Saturday, May 2. Here's what that means for your campaign.
Building an Early-Vote Chase Program
Close local races are won by the campaign that banks its supporters early and chases the stragglers. Here's how to build an early-vote chase program step by step.
The Mandate Brief
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