I was saved when I was born again.
John 3:3 Jesus answered and said unto him, Verily, verily, I say unto thee, Except a man be born again, he cannot see the kingdom of God.
...if I have persevered through His grace to the end of the race.
If I have persevered? Where is that in Scripture? Where is it that if I continue to DO anything save believe on the Lord Jesus Christ I will be saved?
In Christ...Alone!