u/Fabulous-You-5944

I did a 20 week training plan with Runna.

My peak week was 76.6km.

Runna estimated my race time to be 3:52 - 4:03
Garmin estimated 3:57:15
Strava estimated 4:10:12

I did the Gold Coast Marathon which is a nice flat course with top temperature being 20 degrees Celsius when I finished and wind got to 20km/hr so conditions were decent.

I finished in 3:59:27

So in conclusion, trust in the Runna training 😊