The team won two matches in the 2015 US Open Cup but lost in the fourth round to the Chicago Fire of the MLS in extra time.

In the playoffs, they almost fell to the New York Red Bulls II on penalties in the Eastern Conference Finals for the second straight season, but they narrowly squeaked out a win.

In the US Open Cup they fell in the third round for the second straight season, this time to fellow USL team and main rival FC Cincinnati.

In the summer of 2018, James O'Connor stepped back as manager in order to take the head coaching position at MLS club Orlando City SC.

[8] On November 30, 2018, minority owner and key founder, Wayne Estopinal, died in a plane crash on the way from the Louisville area to Chicago.

[10] On January 13, 2020, it was announced that James O'Connor would be returning to the organization after being fired from Orlando City SC in October 2019.

This time he will serve as executive vice president of development where he will oversee the establishment of the team's youth soccer academy.

[13] On August 17, 2024, during Lou City's home match against Charleston Battery, the club announced that rap star and Louisville native Jack Harlow had joined its ownership group.

[15] The pitcher's mound at Slugger Field was retrofitted with a retractable jack to allow a level playing surface for soccer games prior to the start of the inaugural season.

[16] In April 2017, the ownership group announced that it had an option to purchase five adjacent parcels of land, totaling 40 acres (16 ha), in the Butchertown neighborhood just to the east of Slugger Field for a mixed-use project that would include a 10,000-seat soccer stadium.

The plan initially called for the stadium to be expandable to 20,000 seats, and the overall complex would also include offices, retail space, and a hotel.

[17] On September 22, 2017, Louisville Metro mayor Greg Fischer announced a stadium deal that calls for the merged city–county government to borrow $30 million in order to purchase the land, with Louisville City investors responsible for developing the site and repaying about half of the borrowed funds.

[18] On October 26, 2017, Louisville Metro Council voted overwhelmingly to approve the stadium deal shortly after the ownership group secured $130 million in private financing for the overall project; the council voted at the same time to apply to the Kentucky General Assembly for a tax-increment financing district for the project.

The stadium bears the name of Dr. Mark Lynn, an optometrist who owned the Louisville-area franchises of the national optical retailer Visionworks.

[24] In 2021, COVID-19 pandemic restrictions were lifted, allowing Lynn Family Stadium to host its first full-capacity match on June 13 against Memphis 901 FC.

[27] In January 2014, a potential local ownership group invited the owners of Orlando City Soccer Club to Louisville to meet with The Coopers.

After the meeting, Orlando City owner Phil Rawlins noted that The Coopers were already a "great supporters group" and predicted that a professional team would be successful in Louisville.

A renewal of the rivalry has occurred, starting in 2022 when St Louis City SC's reserve team began play with the Division 3 league MLS Next Pro.

The arrival of the Eleven to the United Soccer League in 2018 resulted in the two becoming divisional rivals, and was given the unusual title of "Louisville-Indianapolis Proximity Association Football Contest", or "LIPAFC" during the season by both clubs on social media.

[32][33][34][better source needed] Following the announcement of Lexington SC's promotion to the USL Championship by 2025, consistent meetings between the two Kentucky rivals are expected.

[37] The winning design consists of a purple Fleur-de-lis recessed into a golden bourbon barrel at the bottom with a partial skyline of the City of Louisville at the top.

We have stopped production on merchandise with the new crest and have opened dialogue with supporter group leadership about how to improve our club’s branding and crest.”[40] On November 17, 2020, Louisville City unveiled a new, permanent badge designed by Matthew Wolff.

‡ Luke Spencer, Paolo DelPiccolo, & George Davis IV appointed joint interim head coaches.