Mackenzie Dern Sees Cracks in Gillian Robertson's Grappling Before UFC 330

Mackenzie Dern makes the first defense of her UFC strawweight belt at UFC 330 against maybe the one opponent who'd genuinely relish a mat war. Gillian Robertson owns the record for most submissions by any woman in UFC history — seven — and she's 5-0 since dropping down from flyweight to 115 pounds. On paper, it's a grappler's dream matchup.

Dern, a decorated black belt with ADCC and IBJJF world gold on her résumé, isn't buying the idea that Robertson's ground game is the puzzle everyone's making it out to be. She pointed out that while Robertson has never been submitted in the cage, her competitive grappling record tells a messier story: she's been armbarred and leglocked on the mats, and made to tap four separate times. There are, in Dern's words, definite holes there.

Five Minutes Isn't Much Time

The champion's larger argument is practical. A round is only five minutes, and in an MMA fight — with punches in the clinch, scrambles, and stalls against the fence — you might burn two and a half minutes just getting the fight to the floor. That leaves a narrow window for anyone to cook up something clever. Dern respects Robertson's aggression and her habit of chasing the back rather than settling for a safe takedown, but she doesn't expect to see anything she hasn't already answered a hundred times over.

Robertson (17-8, 9 subs) has a highlight-reel credential of her own: she tapped two-time UFC champ Rose Namajunas at a Fury Pro Grappling event back in 2022. That's not nothing. But Dern's point stands — most of those competitive grappling losses came against opponents happy to grapple with her, and she's about to face a champion who's just as comfortable on the ground, if not more.

A Striking Story, Actually

Here's the wrinkle Dern keeps coming back to: she won the title with her hands. Her unanimous decision over fellow grappler Virna Jandiroba at UFC 321 was carried largely by striking, and she's proud of the transformation. Her jiu-jitsu is still what makes opponents fight her cautiously — half her career wins come by submission — but she now considers herself a champion in a different sport entirely, one she credits with representing her jiu-jitsu roots without being defined by them.

That said, if this co-main event does spill onto the canvas, Dern isn't dreading it — she's excited. She said this camp took her back to prepping for a world jiu-jitsu championship 15 years ago, and she expects scrambles and grappling exchanges rather than a single takedown followed by a stall. Whether Robertson has ever faced someone who actively wants to grapple back is, per Dern, the real question. She promised a few tricks up her sleeve.