In the battle for control of the Indianapolis Public School board, the largest single campaign contribution came from an unexpected source: the teachers’ union. But the donation didn’t help the union-backed candidate.

In recent years, IPS board races have been dominated by pro-school reform candidates who have attracted large contributions from deep-pocketed donors. But in other elections — at other times, in other places — it’s common for teachers’ unions to spend big.

That’s what happened this time in Indianapolis.

Critics of the current administration made their first organized bid to unseat incumbent board members in 2016 when they formed the group OurIPS. The group didn’t donate to candidates, but the district-wide candidate the group supported, Jim Grim, did win a $15,000 contribution from the Indiana State Teachers Association.

Despite that cash, all four candidates backed by OurIPS lost on Election Day.

The contribution to Grim’s campaign was revealed in final campaign finance reports due to the Marion County Election Board last week. The disclosures detail fundraising and spending for each school board campaign, but they don’t include groups such as Stand for Children, which sends mailers and hires campaign workers to support the candidates it endorses but is not required to disclose all of its political activity.

Although the union donation was easily the largest single contribution any candidate received, other candidates did raise more in total. The Indianapolis Chamber of Commerce spent more overall but gave to four candidates.

Here are the totals for each race:

At-large

Grim raised $20,930 during the election. His opponents were incumbent Sam Odle, who raised $31,893, and challenger Elizabeth Gore, who won a surprise victory in the raise. Gore has not filed a finance report, but she told Chalkbeat after the election that she raised about $1,200.

District 1

Incumbent Michael O’Connor vastly out fundraised his opponent in the race, raising $23,543, according to his disclosure. Challenger Christine Prince raised $100.

District 2

Venita Moore, a newcomer who won the seat with support from Stand for Children, raised $25,712. Ramon Batts, who had the support of OurIPS, raised $3,550. Nanci Lacy did not file a report.

District 4

Long-time board member Diane Arnold raised $16,696. Challenger Larry Vaughn did not file a report.

Correction: This post has been updated to reflect a new fundraising total for Michael O’Connor, who submitted a corrected disclosure.