One of the best aspects of grass-court tennis from a betting perspective is the lack of sample size. It’s far more difficult for sportsbooks to accurately handicap a player if they only have a few grass-court matches under their belt.
Sebastian Korda has only played three tour-level matches on turf, but nothing about his performance in Halle—where he reached the quarterfinals before losing to eventual champion Ugo Humbert—suggests he will be anything but spectacular on the surface. In his first match, Korda defeated 2019 Wimbledon semifinalist Roberto Bautista Agut in straight sets, then took out Kei Nishikori in the second round. Not a bad start for the 20-year-old, who will almost certainly become America’s highest ranked men's player in the next few years.
According to DraftKings Sportsbook, Korda will enter his first round match against Eastbourne champion Alex de Minaur as a +150 underdog. Putting the classic fatigue fade aside (de Minaur defeated Lorenzo Sonego in three sets on Saturday, and plays again on Monday), I am not sure the sportsbooks, nor the market, are accurately handicapping Korda’s ability.