Based on boiling 8.75 gallonsliters at 1.041 for 60 minutes, this will decrease your wort by 1.00 gallonsliters, bringing your after boil OG to 1.046. You wanted an OG of 1.051. It looks like it will be under.
Amazing smooth beer. Hint of sweetness. It's not yet carbonated, but I tasted when I took my final gravity reading. Must brew again !