#4 Naomi (0 wins, 3 losses)
Of all the current women on the main roster, nobody has a worse win/loss record at SummerSlam than former SmackDown Women’s champion Naomi.
In 2015, the former Funkadactyl was part of the nine-woman tag match at the event, teaming with Sasha Banks & Tamina against Team Bella (Alicia Fox, Nikki Bella & Brie Bella) and Team PCB (Paige, Charlotte Flair & Becky Lynch), but it was Team PCB who picked up the win.
A year later, she was in tag-team action again, this time on the kickoff show, but her alliance with Becky and Carmella wasn’t strong enough to defeat Nikki, Natalya and Alexa Bliss.
Naomi’s most recent SummerSlam match came in 2017 when, despite being many people’s favourite to walk out as the champion, she lost her SmackDown Women’s title in a one-on-one match against Natalya.