Claire Dunphy's Career Timeline On Modern Family Explained

In the Season 1 episode "En Garde" — in which the family rallies to support Manny's (Rico Rodriguez) uncanny knack for fencing — Mitchell (Jesse Tyler Ferguson) bitterly reveals that he and Claire were once a formidable ice skating duo that performed under the name Fire & Nice ("I was 'fire,' 'cause of the red hair, and Claire was 'nice,' because it was ironic and she wasn't"). Despite their success and Mitchell's enthusiasm, Claire abandoned the venture just before the 13 & Under Regional Championships, meaning that both of their careers as ice dancers ended sometime before her 14th birthday in 1984 — not including the impromptu parking lot revival of Fire & Nice in 2009.

Also during her teen years, Claire worked at a roller skating rink alongside a boy named Jeff (Lex Medlin). According to him, the two had a one-off kiss sometime during her employment. Though an exact date isn't explicitly stated by the series, it's likely this was sometime after she left Fire & Nice. 

Claire would return to the skating rink she once worked at almost three decades later with her family for a fundraising event (featured in the Season 4 episode "My Hero"). She is slightly shocked to learn that Jeff still works at the rink, though he seems relatively happy to do so. Later, he reveals that he fathered a child since they last met, though he's still clearly infatuated with Claire.