Aimed for 9.75 gallons and got about 8 gallons wort in the fermentation vessel
Based on boiling 11.20 gallonsliters at 1.022 for 60 minutes, this will decrease your wort by 1.00 gallonsliters, bringing your after boil OG to 1.024. You wanted an OG of 1.038. It looks like it will be under.