We would have drawn on SPD. My SPD was 70 ---> 60, while your speed was 80 ---> 60. There would have been no damage taken by either side, so there wasn't much benefit going that route.
And yet it would've ended the fight before I'd have managed to put our HP into a tie again ^^
But yeah, Shield Bash also would've backed me into a corner, I don't think I could've done anything useful after that either.
Really, it was just a case of me not logging the stats used in my head. Had I paid attention to how many stats could have been used, things may have turned out more favourably. As it was, a draw is the fair result!