Betting on the male winner of the French Open – which starts May 26 – takes no homework, at least since Spain’s Rafael Nadal won his first title on the clay of Roland Garros in Paris in 2005. Nadal has won the only clay-court major a record 11 times and is 86-2 all-time in the event. If he’s healthy, he’s probably going to win as the best clay-court player, male or female, in history.

Odds courtesy of OddsShark.com

The women’s side, however, has largely been a crapshoot in the past five years with five different champions. In fact, since Justine Henin won a third straight French Open in 2007, there have been nine different champions. Russia’s Maria Sharapova has accounted for two wins in that stretch but won’t play in 2019 due to a shoulder injury.

The betting favorite entering this year’s tournament is defending champion Simona Halep at +400. The Romanian took her first-ever Grand Slam title (and still only one) with a 3-6, 6-4, 6-1 win over American surprise finalist Sloane Stephens. Halep was the second female from her country to win the French Open, joining Virginia Ruzici in 1978. Halep, who lost the 2017 French final to Jelena Ostapenko, hasn’t even reached the quarterfinals of the three Grand Slam tournaments since.