Brain Game: Got a Spare?

It's Free-for-All Friday here at the mentalfloss.com Brain Game. What say we knock back a few... pins?

Kirk is a great 10-pin bowler, and can toss a lot of strikes, but he tends to throw a very bad ball once a game, even at his best. He's never bowled a 300, but he's come close. Given these three scenarios, which one COULD result in the highest score?

1. Kirk throws a 1 on his first ball in the first frame.

2. Kirk throws a 1 on his second ball in the second frame.

3. Kirk throws a 1 on his last ball in the last frame.