In this whitepaper,  we examine the factors that contribute to the global reach and sustained relevance of the four major tennis tournaments in 2025: the Australian Open, Roland Garros, Wimbledon, and the US Open.

The whitepaper introduces two key metrics:

• Travelability: a measure of a tournament's ability to generate demand from outside its host country.
• Retention: a metric that quantifies how long that demand persists after the event has concluded.