weigh–in 
/ˈweɪˌɪn/ noun
plural weigh–ins /ˈweɪˌɪn/ noun [count] : an occurrence in which an athlete (such as a boxer or jockey) is weighed before an event
▪ The boxers arrived for the pre-fight weigh-in. — see also weigh in at weigh
▪ The boxers arrived for the pre-fight weigh-in. — see also weigh in at weigh
