| 1 |  Women's Flyweight World Championship'' to ''Women's Strawweight World Championship''Under ''Tournament winnersFour-man flyweight tournament for the vacant EFC Flyweight title.
| Weight Division | Champion | Runner-up | Event | Date | | Flyweight |  Notable athletes and alumni- Garreth McLellan: Former EFC Middleweight champion who was signed by the UFC in 2015. He competed in 5 UFC bouts from April 2015 until March 2017.
- Ruan Potts: Former 2 times EFC Heavyweight champion who was signed by the UFC in 2014 He competed in 3 UFC bouts from May 2014 until February 2015.
- Cyril Asker: Former EFC Heavyweight champion who was signed by the UFC in 2016. To date he has competed in 5 UFC bouts.
- Danny Henry: Former 2 times EFC Featherweight champion who was signed by the UFC in 2017. In his debut match at UFC Fight Night: Nelson vs. Ponzinibbio he earned a Fight of the night bonus. To date he has competed in 4 UFC bouts.
- Dalcha Lungiambula: Former EFC Heavyweight and Light Heavyweight champion who was invited to compete in the UFC in 2019. To date he has competed in 3 UFC bouts.
- Dricus du Plessis: Current UFC Middleweight champion, du Plessis is the former EFC Middleweight and Welterweight champion. Originally called up to the UFC in September 2020, he made his promotional debut against Markus Perez on 11 October 2020 at UFC Fight Night 179 and won via a TKO in the first round. Du Plessis was scheduled to face Trevin Giles on 20 March 2021 at UFC on ESPN 21, but had to withdraw from the event after being refused entry to the US due to Covid related restrictions placed on South Africans.
- Jared Vanderaa: Former EFC Heavyweight champion who was signed to the UFC in November 2020 after competing in the fourth season of Dana White's Contender Series. He was scheduled to fight Sergey Spivak at UFC 256 on 12 December 2020. However, Vanderaa tested positive to Covid 19 and was therefore removed from the event. The bout was rescheduled for UFC Fight Night: Blaydes vs. Lewis on 20 February 2021. Vanderaa lost via TKO in the 2nd round.
- Manon Fiorot Former EFC women's Lightweight champion and winner of the EFC's second season of the reality program - The Fighter. She was signed to the UFC in December 2020 and made her debut against Victoria Leonardo at UFC Fight Night: Chiesa vs. Magny on 20 January 2021. Fiorot won via TKO in the second round.
- Themba Gorimbo Former EFC Welterweight champion. He was signed to the UFC and made his debut in February 2023 against A.J Fletcher at UFC Vegas 69.
Other EFC athletes signed to the UFC - Don Madge. Former 2 times EFC Lightweight champion who was invited to compete in the UFC in 2018. In his debut match at UFC Fight Night 138 he earned a "Performance of the night" bonus with a knockout via a head kick. To date he has competed in 2 UFC bouts - UFC Fight Night 138 and UFC 242: Khabib vs. Poirier. Madge was scheduled to face Nasrat Haqparast at UFC Fight Night: Edwards vs. Muhammad on 13 March 2021 but had to withdraw from the event after being refused entry to the US due to Covid related restrictions placed on South Africans.
- JP Buys Former EFC Flyweight and Bantamweight champion who was invited to compete in UFC owner Dana White 's Tuesday Night Contender Series in August 2017 and again in the fourth season in November 2020. After beating his opponent in the final fight of the fourth season on 17 November 2020, Buys was signed to the UFC. He made his UFC debut against Bruno Gustavo da Silva at UFC on ESPN: Brunson vs. Holland on 20 March. 2021, losing by TKO. He was 0-4 in the promotion with losses from Montel Jackson, Cody Durden, and Marcus McGhee, before being released from the promotion in October 2023.
- Nkazimulo Zulu. Former two times EFC Flyweight champion and current EFC competitor who was invited in 2016 to compete in The Ultimate Fighter which was produced by the UFC and Fox Sports 1. Zulu competed on The Ultimate Fighter Season 24, Opening Round, Day 2.
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