Since the 2015 edition, Miss Universe has been changing format to keep the delegates on the edge of their seats.
In 2015, they re-introduced the Top 3 for an overall cut of 15-10-5-3 where 15 delegates competed at the swimwear competition, 10 delegates competed at the evening gown competition and 5 delegates get to answer in the first round of question-and-answer. The last three women standing answered the final question and competed at the Final Look.
Pia Wurtzbach won that contest.
In 2016, the competition got even more cut-throat. Instead of Top 15, they only allowed Top 13 to proceed to the semifinals. The last of which was determined via a fan vote. The overall cut was 13-9-6-3.
Miss Philippines Maxine Medina made it to Top 6.
In 2017, they introduced a more continental format where four girls were taken from each continents (Asia-Africa, Europe, Americas) and another four wildcard delegates where Miss Philippines belonged. The overall format was 16-10-5-3.
Rachel Peters sashayed her way to finish at the Top 10.
Erratum: Miss Tamaryn Green rectified the pronouncement as a miscommunication. The 15-10-5-2 format follows Miss South Africa not Miss Universe.