What the Odds Say
Dricus Du Plessis enters this UFC middleweight title defense as a clear favorite across all available books. At BetOnline.ag, Du Plessis is priced at -345 with Kamaru Usman returning at +285. DraftKings matches the favorite side at -345 but shades the underdog line slightly tighter, listing Usman at +270.
That difference matters if you are leaning toward Usman. A +285 line at BetOnline.ag versus +270 at DraftKings is a meaningful gap in potential payout on any real wager. Shopping lines before you place is one of the most straightforward ways to add value.
Use the Odds Converter to quickly translate these American odds into implied probabilities or decimal format.
Implied Probabilities at a Glance
At -345, Du Plessis carries an implied win probability of roughly 77.5 percent. Usman at +285 implies around 26 percent. At +270 on DraftKings, that nudges up to about 27 percent.
These figures include the sportsbook's margin, the vig. The raw probabilities from both sides will exceed 100 percent because the book builds its edge on each side. Use the EV Calculator to strip out the vig and assess whether either line offers positive expected value against your own probability estimates.
The Matchup Context
Dricus Du Plessis
Du Plessis is the reigning UFC middleweight champion and one of the most durable fighters in the division. His pressure-based style, ability to absorb punishment, and relentless forward movement make him difficult to gameplan against. The -345 price reflects both his championship status and how oddsmakers view the stylistic matchup.
Kamaru Usman
Usman is a former UFC welterweight champion who has transitioned to middleweight. At his peak he was widely considered the best pound-for-pound fighter in the world, built on elite wrestling, precise striking, and exceptional cardio. Losses and questions about his current form at middleweight have pushed him to a significant underdog role here, which the +270 to +285 range clearly reflects.
The spread itself is worth noting. A -345 favorite in UFC is not a lock. MMA is a sport where a single exchange can change the outcome regardless of the talent gap, and that variance is part of why plus-money underdogs consistently attract action from experienced bettors.
What to Watch Heading Into Fight Night
Line Movement
With several weeks until fight night, there is time for this line to shift. Watch for movement on the Du Plessis side tightening his price, or money on Usman pushing his plus line higher. Sharp line movement in a UFC main event often signals something worth tracking. Steam Moves is built for exactly that.
Weight and Health News
Usman is moving up from welterweight, so his conditioning at middleweight is relevant. Training reports and health news out of both camps over the coming weeks could move the line in either direction.
Public Betting Percentages
Usman is one of the most recognizable names in combat sports and tends to attract casual money. Heavy public action on his side could push books to adjust, either compressing Du Plessis's price or lifting Usman toward the +300 range, which could create value on the favorite.
Stylistic Factors
Usman's wrestling is elite, but Du Plessis has shown the ability to stay dangerous off his back and in scrambles. The grappling dimension of this fight is central to how it plays out and should inform any case you build for either fighter.
Comparing Books Before You Bet
The 15-point spread between Usman's moneyline at DraftKings (+270) and BetOnline.ag (+285) is a concrete example of why checking multiple sportsbooks is worth the extra minute. Visit the UFC odds page on Line Whale to see all available lines in one place as the market develops closer to fight night.