What the Odds Say About Robertson vs. Dern
Mackenzie Dern enters this UFC strawweight matchup as a clear favorite across all five major sportsbooks, but the spread in prices is worth paying attention to before you place a bet. With the fight set for Sunday, August 16, 2026, there is meaningful difference between books and time to shop for the best number.
Dern is priced between -196 and -238 depending on where you look. Gillian Robertson sits between +164 and +195 as the underdog. Those ranges are wider than you typically see for a fight this far out, which signals the market is still settling and oddsmakers have not fully aligned on how to price this one.
Mackenzie Dern: The Consensus Favorite
Dern is the favorite at every book. The implied probability of her winning sits between roughly 66% and 70% depending on which line you use. At her shortest price (-196 on DraftKings), the implied probability is around 66%. At her longest price (-238 on BetRivers), it climbs to approximately 70%.
The market is saying Dern wins this fight roughly two out of every three times. That is a meaningful edge, but not a certainty. To profit $100 on Dern at her longest price, you would need to risk $238 at BetRivers. If you want to compare prices across formats, the Odds Converter can help you work through American, decimal, and fractional odds side by side.
Dern is one of the most accomplished grapplers in women's MMA. Her jiu-jitsu credentials are elite, her submission game has translated effectively at the UFC level, and her striking has improved steadily over time. The market reflects that trajectory.
Gillian Robertson: The Underdog Case
Robertson is priced between +164 and +195, meaning the books still see a realistic path to victory for her. At +195 on BetOnline, a $100 bet returns $195 in profit, with an implied probability of around 34%. At her shortest price of +164 on DraftKings, the implied probability rises to roughly 38%.
Robertson is a grappler by trade, which makes this matchup genuinely interesting. She holds multiple submission wins in the UFC and is not a fighter who gets overwhelmed on the mat. Whether she can neutralize Dern's submission threat, or avoid it entirely through wrestling and positioning, is central to how this fight plays out.
Her best number right now is +195 at BetOnline, and if you believe in her chances, that is where to look first.
Line Shopping: Where the Value Is
The gap between books is significant. On the Dern side, DraftKings at -196 is noticeably softer than BetRivers at -238, a 42-cent difference that matters if you are looking to back the favorite. If you are backing Robertson, BetOnline's +195 is the best available price and a real step up from the +164 posted at DraftKings and Caesars.
Having accounts at multiple books is one of the most straightforward ways to improve your long-term results, and this matchup illustrates exactly why. You can track all current lines for this fight on the UFC odds page.
Key Factors to Watch Before the Fight
A few things could shift the line between now and fight night:
Injury and weight cut news. Strawweight fights at 115 pounds can be affected by difficult cuts. Any health or weight complications typically move lines quickly.
Public betting patterns. As fight week approaches, casual money tends to flow toward recognizable names. Dern has more mainstream recognition, which could push her price shorter at some books regardless of sharp action.
Grappling matchup analysis. This is a fight between two submission specialists. As analysts and bettors dig into the stylistic matchup, expect breakdowns to influence where the public bets. You can monitor sharp movement with the Steam Moves tool.
Recent form and camp news. Both fighters' recent performances and any changes in coaching or preparation will factor into how informed bettors price their chances.
The Bottom Line on the Current Market
Dern is the clear favorite, and all five sportsbooks agree on that. The implied probability range of 66% to 70% reflects a fighter the books believe wins this matchup more often than not. Robertson at +164 to +195 is the underdog range, but at the right price she represents a credible alternative.
With lines varying this much between books this far out, the most actionable step right now is to compare prices carefully and avoid locking in at a number that other books are already beating.