285-285 Scrabulous game vs Matt Jones

I'm locked in a close Scrabble game with Matt Jones at Facebook.

The score is 285-285, it's his move, and I have one tile left. He has 3 tiles left (I suppose if I were I real player, I would figure out what tiles those are).

In trying to decide if my most recent play TUTOR was a good one, I realized I don't even know the correct ending condition for Scrabble. I didn't let that ignorance either motivate me to learn the rules, or stop me from considering my move carefully.

I think he'll play his final three tiles, and then I'll lose, with my final tile charged against me.

If that's how it works, that is.

Added later: Just when I thought I'd lost, I won instead, due to this rule:

The player who goes out first gets the point values of all remaining unplayed tiles added to their score. Players with tiles remaining on their rack have their equivalent point values removed from their score.