Golfers betting on themselves typically refers to the practice of players participating in golf tournaments placing wagers on their own performance. This is generally not allowed in professional golf for several reasons:

1. **Integrity and Ethics**: Betting on oneself can lead to conflicts of interest and potential manipulation of the game’s outcome. It is considered unethical because it can undermine the integrity of the competition.

2. **Regulations**: Professional golf organizations, such as the PGA Tour and the European Tour, have strict rules against players betting on golf competitions, including betting on themselves. These rules are in place to ensure fair play and to prevent any form of corruption or match-fixing.

3. **Penalties**: If a professional golfer were found to be betting on their own performance, they would likely face severe penalties, including fines, suspensions, or even a lifetime ban from the tour, depending on the severity of the infraction and the governing body’s policies.

However, in recreational settings or among friends, golfers might engage in friendly wagers on their own performance, such as betting on their score in a round or the outcome of a hole or match. These bets are typically considered a form of entertainment and are not subject to the same regulations as professional play.

It’s important to distinguish between friendly wagers and organized betting. Professional golfers may not bet on themselves in the context of organized sports betting, but casual, social betting among friends is generally considered acceptable as long as it remains within the bounds of the law and the spirit of the game.