Mackenzie Dern Has the Edge, But Gillian Robertson Is Closing In at UFC 330

Mackenzie Dern

Mackenzie Dern enters UFC 330 as the betting favorite to keep the women’s strawweight title, but Gillian Robertson has made this one a lot less comfortable than the first numbers suggested. The champion and challenger meet in Saturday’s co-main event at Xfinity Mobile Arena in Philadelphia, on a card topped by Islam Makhachev vs. Ian Machado Garry for the welterweight belt.

UFC 330 Betting: Mackenzie Dern vs. Gillian Robertson Odds

Dern is currently priced around -225 on the averaged moneyline, while Robertson sits at +187. In plain terms, a $225 wager on Dern would return $100 in profit if she wins, while a $100 Robertson bet would return $187 in profit. The raw implied percentages are about 70 percent for Dern and 30 percent for Robertson. Live prices vary as seen with bongobongo as Dern is available from -194 to -250 across the market, while Robertson ranges from +166 to +203.

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LAS VEGAS, NEVADA – JANUARY 10: Mackenzie Dern poses on the scale during the UFC Fight Night weigh-in at the Palace Station Hotel & Casino on January 10, 2025 in Las Vegas, Nevada. (Photo by Chris Unger/Zuffa LLC via Getty Images)

The line has moved around enough to give this fight some buzz. The averaged opening number listed Dern at -235 and Robertson at +161, meaning the market has become a little more welcoming to the Canadian challenger since that point. Yet the first widely posted individual opening line had Dern only -120, with Robertson at even money. Money then came in toward Dern, with the champion reaching the -250 range at several points during the build-up. The latest figures show a modest drift back toward Robertson, though Dern remains a clear favorite.

LAS VEGAS, NEVADA – MARCH 14: Gillian Robertson of Canada reacts after round two against Amanda Lemos of Brazil in a strawweight fight during the UFC Fight Night event at Meta APEX on March 14, 2026 in Las Vegas, Nevada. (Photo by Chris Unger/Zuffa LLC)

Dern, 33, carries a 16-5 record into her first UFC title defense. She has won three straight and holds eight submission victories, which is why any prolonged scramble is likely to make people sit up in their seats. Robertson, 31, is 17-8 and comes in on a five-fight win streak. Her recent run includes a second-round TKO of Marina Rodriguez and a decision win over Amanda Lemos in March.

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Gillian Robertson outlasts Luana Pineiro in unanimous decision win - UFC Vegas 100 Highlights

The UFC 330 pick is Dern by decision. Five rounds favor Dern’s championship experience, and she has a slight edge in the latest market, but Robertson’s wrestling suggests this could be a close round-by-round fight rather than a walkover. Dern by submission is next pick after decision. A knockout is highly unlikely. The moneyline has held firm on one point: Dern is favored, but Robertson is close enough to make Saturday night awkward for the champion.

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ABU DHABI, UNITED ARAB EMIRATES – OCTOBER 25: Mackenzie Dern reacts after a victory against Virna Jandiroba of Brazil in the UFC strawweight championship fight during the UFC 321 event at Etihad Arena on October 25, 2025 in Abu Dhabi, United Arab Emirates. (Photo by Jeff Bottari/Zuffa LLC)

Mackenzie Dern will look to defend her UFC women’s strawweight title against Gillian Robertson in the UFC 330 co-main event on Saturday, August 15, at Xfinity Mobile Arena in Philadelphia. Dern enters as the favorite, but Robertson arrives with momentum and a grappling-heavy game that could make the championship fight a close one.