Fanad entered an under-19 team into the inaugural 2011 season and Horgan took charge of the side until his departure from the club to join Finn Harps in 2013.

[2] Horgan's appointment came as a surprise to the sporting public of Donegal, with more high-profile candidates such as Joe Boyle, Don O'Riordan and Julian Dicks all confirmed to have been interested in the job.

[3] In his first season as a League of Ireland manager, Horgan spent the year consolidating and making sure Harps would build on a youthful squad.

[11] Despite a promising start to the 2017 season, with wins over St Patrick's Athletic twice, Limerick, Bohemians, and a derby game in Maginn Park over Derry City, Harps late season run of form ended with a disappointing relegation back to the First Division for 2018 alongside Galway United and Drogheda United as the Football Association of Ireland changed structures again, relegating three teams from twelve to create two ten team divisions within the League of Ireland.

The relegation went down to the final day with a 1–0 victory against Waterford securing their status in the premier division over Shelbourne who finished 9th and lost their play-off to Longford Town.

Finn Harps started the 2021 League of Ireland Premier Division Season well being in first place for periods of time, however late form saw them drop off to the threat of the relegation play-off.