The CONI (Italian Ministry of Sport and the Italian Committee) has done a study with the University of Turin and has calculated the 'possibility of spreading COVID 19' for each sport.
Italy is one of the countries that is suffering the most in this COVID-19 period but the Italians are starting to pick up their 'normal life' again. Because of that, the University of Turin made a study, calculating the riks of contamination doing different sports. The results where published in "Lo Sport riparte in sicurezza";
The several Olympic sports got a 'risk-indicator' behind their name between 0 (almost non-existing risk) to 4 (very high risk). The variables that were considered in this study were the training conditions, competitions and the presence of audience during this competitions.
Equestrian sport got in the 0-risk level as well as tennis, golf and swimming in open water. However, of horseback riding is done in a group, while playing polo for example, the risk of contamination increases. Horse racing can have risk factor 1 (=very low risk) as well in certain situations. Almost all individual sports can be place in risk area 0 or 1.
Teamsports are the sports with the highest risk, starting from categorie 2. Waterpolo is the safest sport, since this is played in chloor-water, which minimalises the risk of contamination. Soccer has risk lever 3, basketball, volleybal and handball or american football have a risk level of 4.
Source: coni.it, ivg.it