Valentin Vacherot earned his biggest career win and prize money haul with a remarkable victory at the Shanghai Masters.The Monegasque star beat his cousin Arthur Rinderknech 4-6 6-3 6-3 to win his first ATP Tour title.Vacherot sealed a historic victory in Shanghai against his cousinGettyVacherot, who entered the tournament as a qualifier, won against Holger Rune and Novak Djokovic en route to Sunday’s final.He was overcome with emotion and hugged Rinderknech at the net once the win was secured before soaking in the crowd’s applause.The 26-year-old is the first ever man from Monaco to win a tour-level title in the Open Era, and he did so in his first appearance in a final.As champion, Vacherot has banked $1,124,380 [£841,996], a figure that is almost double of what his total career earnings were beforehand.Across singles and doubles matches, he won $594,077 [£444,877] in prize money.Vacherot is now on $1,718,457 [£1,286,872], which is nearly worth triple his pre-Shanghai Masters total.As well as this, he has now risen from 204 to 40 in the live ATP world rankings, seven spots below Cameron Norrie.Vacherot said: “It is unreal what just happened, I have no idea what is happening right now. I am not even dreaming, it is just crazy.“There has to be one loser but I think there are two winners today. One family that won and I think for the sport of tennis, the story is unreal.”Rinderknech added: “Valentin, you gave everything I am so happy for you. Two cousins are stronger than one.”Vacherot is now top 40 players on the ATP TourGettyVacherot’s career before Shanghai successAn ex-skier, Vacherot trained at the Monegasque Tennis Federation and later played college-level tennis at the Texas A&M University.He studied business and sports management in the United States before winning his first ATP Challenger Tour title in 2022.Vacherot made his Masters debut a year later in Monte-Carlo, whilst the 2024 French Open was his first Grand Slam appearance.At this year’s Monte-Carlo Masters, he became the first Monegasque player since Jean-Rene Lisnard in 2009 to win a main draw match.Vacherot has now made more history for Monaco and broken into the top 100 for the first time ever.