2026 Home Run Derby odds: Schwarber and Harper headline a wide-open field

Philadelphia's Citizens Bank Park hosts the 2026 T-Mobile Home Run Derby tonight at 8 p.m. ET on Netflix, and Kalshi traders can't separate the favorites. Eight of the sport's biggest sluggers will take cuts under the new swing-based format, and the market reflects just how wide open things are at the top.

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The hometown angle is hard to ignore. Kyle Schwarber enters tonight as the professional baseball home run leader with 32 on the season, and the Citizens Bank Park crowd figures to be loudly behind him. Kalshi traders give him a 23% chance to claim the trophy, the highest in the field but far from a dominant edge.

Junior Caminero sits just one point back at 22%. The Tampa Bay third baseman is scorching right now, with 12 home runs over his last 16 games, and he finished second at last year's Derby in Atlanta. Japanese rookie Munetaka Murakami rounds out the top tier at 14%, competing fresh off the injured list and representing Chicago.

Behind them: Jac Caglianone (Kansas City) at 12%, Jordan Walker (St. Louis) at 11%, Bryce Harper (Philadelphia) at 9%, Ben Rice (New York) at 9%, and Willson Contreras (Boston) at 5%.

The Harper storyline adds another dimension to the night. Back in 2018, playing in front of his home crowd at Nationals Park, Harper beat Schwarber 19-18 in the final, one of the most dramatic Derby finishes in recent memory. Now teammates, the two Philadelphia players are the first pair from the same roster in the same Derby since Schwarber and Javier Baez both represented Chicago in 2018. Asked about a potential rematch with his current teammate, Schwarber told MLB.com: "That would be fun. I think it would be awesome."

Professional baseball has also revamped the format for the first time since 2015, ditching the clock in favor of a swing-based system: 20 cuts in Round 1, 15 in each of the next two rounds. Ties in Round 1 go to longest home run; ties in the semifinals and final go to three-swing swing-offs.

Citizens Bank Park's right field porch has long been inviting for left-handed power hitters, a factor that could favor both Schwarber and Harper. But the longest home run market tells a slightly different story.

Caminero leads the longest-homer market at 23%, edging Schwarber (20%) and Caglianone (19%). Jordan Walker sits at 17%, with Murakami at 13%. Harper and Contreras each check in at 5%, while Ben Rice brings up the rear at 3%.

The gap between the raw power candidates and the rest of the field is notable here: the top four in the longest-homer market account for 79% of the probability between them, suggesting traders see this particular category as a more concentrated race.

Last year's Derby in Atlanta produced 210 home runs across the full night. Traders are pricing in another prolific showing, though perhaps not quite at that level.

The market puts a 74% chance on 110 or more total home runs being hit, with 115+ at 55%, 120+ at 39%, 125+ at 29%, 130+ at 19%, and 135+ at 13%. The new swing-based format introduces a meaningful variable: with a finite number of cuts per round rather than a running clock, players can't simply run up the count in timed bursts. Whether that suppresses or concentrates totals compared to the timer format is one of the more interesting questions tonight will answer.

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^{This article may contain content generated with the assistance of artificial intelligence. It is provided for informational purposes only and does not constitute investment, trading, financial, or legal advice. Opinions and market commentary are not recommendations. Trading involves risk and you should carefully evaluate your financial situation and consult a qualified advisor before making any trading decisions. Kalshi is not affiliated with the ATP, WTA, or Wimbledon.}