What is Her/170 Checkout? Her/170 Checkout Explained in 2 minutes

David Genge Editor

Fact checked by:
Jesse M. Cox Last Verified
19/04/2026

Welcome to our guide to 170 checking out betting. Perfect for adding an extra dimension to your darts bets.

We'll reveal what a 170 checkout bet is and show you which bookmakers to try this bet at. Plus you'll even get to see what kinds of bonuses you can get on this kind of darts bet.

What is a 170 Checkout?

A 170 Checkout is the highest possible score a leg of a darts match can be won from with three darts based on the standard rules of the game. The rules state a leg can only be won with the final dart landing on either a double or a bullseye.

This means that if a player has a total of 170 remaining in a game of 501, a checkout of two treble 20s and the bullseye would equal 170. The player would win the leg if they achieved this.

A 170 checkout is also referred to as a Big Fish or a maximum checkout and is considered a difficult checkout, as it requires hitting a bullseye on the final dart.

How is a 170 Checkout used in Sports Betting?

Bets are often taken on the method of victory per leg, and the amount of 170 checkouts in a game.

For example, in a match that is the best of five sets, a player must win three legs to win a set. That means a minimum of three legs per set will be played, allowing punters to bet on how many 170 checkouts there may be throughout the game. The quality of players involved and the likelihood of the volume of legs should be taken into consideration. The more legs the better the chance of a 170 checkout and a winning bet.

Bets such as this are usually found in darts sub markets. Nine-dart-finishes and match winners are often more popular markets and, as such, are more commonly offered by bookmakers.

170 Checkout bets with Unibet

At of our favorite betting sites Unibet, you can place a wager on a 170 checkout by following these simple steps:

• Go to the Unibet website and select sports from the main page and then sports betting
• Select Darts from the list of available sports
• Scroll down to ‘Live and Upcoming’ section and on the right hand side select ‘Bet Type’
• From the dropdown menu select ‘170 Checkout in the Match’

From here select the game you want to have your 170 checkout take place in and you are good to go!

Did you know…

On the professional stage, beating your opponent with a 170 checkout can be deemed poor etiquette and classed as showboating…but players like to do it anyway.

Conclusion - Try your first 170 checkout bet

170 checkout betting might be unusual but it can be a lot of fun. This is especially true if you use any of the online bookmakers featured in the banners on our site. So sign up to one of these bookies and enjoy a great way to bet on darts.

170 checkout betting FAQ

See also

180 Betting

First Leg 180

First Leg Winning Checkout

First Leg Winning Colour

First Dart Treble 20

First Dart of the Match