Hi there DolphinK11,
Welcome to Apple Support Communities.
We'd like to help with the fitness data that has been recorded. Take a look at the resource below to which app is providing the inaccurate data and if it can possibly be deleted.
Manage Health data on your iPhone, iPod touch, or Apple Watch
Moving forwared, we recommend calibrating the Apple Watch to improve the accuracy of your activities. Follow the guidance in this Apple Support article: Calibrating your Apple Watch for improved Workout and Activity accuracy - Apple Support
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. To start, 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.
Let us know if this helps you.
Cheers!