Definition of 1st Set Money Line

What is the definition of the term "1st Set Money Line"? What is meant by the term "1st Set Money Line"?

The "1st Set Money Line" is a wager on which player will win the first set only in a tennis match, regardless of what happens in the rest of the match.

For example, if you bet on Karen Khachanov to win the 1st set at odds of 1.36, and he takes the opening set (even if he eventually loses the match), your bet is a winner. On the other hand, if you backed Emilio Nava at 3.20 and he wins the first set, that's a successful bet - again, the final result of the match does not matter for this market.

This type of bet is popular among bettors looking to take advantage of strong starters or players known for fast first-set performances.