How to edit my pool swim workout data AFTER the workout

Hi 6randon,

Thanks for posting in Apple Support Communities.

We understand that you want to edit your Health data. You can't remove the data that has already been synced to the Health app, but you can add missing data.

1. Open Health app
2. Tap Browse
3. Choose the affected workout
4. Tapp Add Data
5. Enter Info
6. Tap Add

Calibrate your Apple Watch to ensure that you're getting the most accurate readings.

"Calibrate your Apple Watch

1. While wearing your Apple Watch, go to a flat, open outdoor area that offers good GPS reception and clear skies.
2. If you have Apple Watch Series 2 or later, you just need your Apple Watch.* If you have Apple Watch Series 1 or earlier, bring your iPhone for GPS. Hold your iPhone in your hand, or wear it on an armband or waistband.
3. Open the Workout app, then tap Outdoor Walk or Outdoor Run. To set a goal before starting, tap .

4. Walk or run at your normal pace for about 20 minutes.

If you don't have time to finish the workout, you can complete 20 minutes over multiple outdoor Workout sessions. If you work out at different speeds, you should also calibrate for 20 minutes at each of the speeds that you walk or run."

Find these details and more in Calibrate your Apple Watch for improved Workout and Activity accuracy.

For additional support, you'll want to contact Apple Support for the Health app:

Apple Support

Regards.