Zanotti was born in Asunción, the national capital. He was Paraguay's top ranked amateur golfer for six straight years.
Professional career
Zanotti turned professional in 2003. In 2006 Zanotti won the Tour de las Americas Order of Merit with victory at the final event of the season, the Abierto Mexicano Corona. The tournament was also the second event on the 2007 Challenge Tour schedule, and the win enabled him to join the tour for the remainder of the season. He ended the season in 11th place on the Challenge Tour Rankings to graduate to the top level European Tour for 2008.
In his rookie season on the European Tour, Zanotti finished 153rd on the Order of Merit to lose his place on the tour. However he regained his card for 2009 by finishing 16th at the end of season qualifying school. He has kept his card since, with a best finish of 25th on the Race to Dubai in 2017.
His second European Tour win came at the Maybank Championship in February 2017. He scored a final round 63, including a birdie-eagle finish, to beat David Lipsky by a stroke.[2] Zanotti had begun the final round six shots off the lead, but a birdie on the 71st hole sent him to the top of the leaderboard for the first time all week. The win moved Zanotti back inside the top 100 in the world rankings.