How do I add Pickleball to my Apple Watch 8.6?

Add a a workout

1. On your Apple Watch, open the Workout app.
2. Scroll down and tap Add Workout.
3. Tap the desired workout.

Choose Other when you can't find a matching workout type. In all workouts, the Heart Rate and Motion sensors work together to give you accurate credit. When you use Other, or any workout type available in the Add Workout section, you earn the credit equivalent of a brisk walk when these sensor readings are unavailable.

Workout types on Apple Watch - Apple Support

P.S.Tennis and Pickleball both have a workout type in the workout app,when you add a workout type they are in alphabetical order so a fair way down the list.