Born to a Spanish father and a Swiss mother, he decided in 2013 to represent the home country of his mother Barbara instead of Spain - a stroke of luck for Switzerland and for the GYC.
In 2016 he decided to join the club. One year later, in 2017, renown now as light and medium wind specialist, Mateo won the silver medal at the World Championships in Enoshima and at the World Cup opening in Gamagori he finished 3rd. Also in 2018, the 25-year-old SST national squad athlete took part regularly in the world competitions. At the start of the World Cup season, he was second on the podium in Enoshima, home of the 2020 Summer Olympics, and won the Gold Medal just a few days later at Enoshima Olympic Week
25th at RS:X Windsurf World Championship (Qualified to the 2020 Olympic Games)
6th at 2019 Enoshima Olympic Test Event, Enoshima, Japan
6th 2019 Hempel World Cup Series, Miami,USA
10th 2019 Trofeo Pricesa Sofia, Palma de Mallorca, Spain
1st at 2018 Olympic Week, Enoshima, Japan
2nd at 2018 RS:X World Windsurfing Championshi, Enoshima, Japan
2nd at 2017 RS:X World Windsurfing Championship, Enoshima, Japan
14th at 2016 Olympic Games, Rio de Janeiro, Brazil
Gstaad Yacht Club member Mateo Sanz Lanz – Swiss Sailor of the year 2017/2018
Saturday, 23rd February 2019, at the sixth SUI Sailing Awards in Berne, the best Swiss sailors were honored for their achievements in 2017 and 2018. Swiss Sailing together with „Skippers Sailing and Ocean" nominated the awards for outstanding achievements in the categories Female Sailor, Male Sailor, Junior Sailor, Sailing Team, Sailing Project of the Year, Special Award and Public Award.