What happened in first Conor McGregor vs. Max Holloway fight years ago?

Conor McGregor and Max Holloway previously fought on August 17, 2013, at UFC Fight Night 26, held at TD Garden in Boston, nearly 13 years before their scheduled rematch at UFC 329. At the time, McGregor was 25 and making only his second UFC appearance after a first-round TKO of Marcus Brimmage, while Holloway was 21 with a 3-2 UFC record across six appearances. Both men competed as featherweights on the preliminary card of that event.