19-1 chip lead and I lost it, help!

[yimyammer]

I just experienced something that’s never happened before and I’m stunned I just lost a tournament with a chip lead of T19,070 to T930

My opponent proceeded to go all-in on every remaining hand and won every single one of them to win the tourney. Also, note that prior to the following hands, my opponent had played pretty tight and I had even been able to make a few position re-raise steals from him. My take on him at this point was that he was a pretty conservative, tight player that plays goods cards and bets them hard when he has them.

Here are the hands:

My chip stack will be the first one listed in every hand below.

Blinds are 300/600. I’m in the BB in the 1st hand and I’m listing every hand so I’m not noting blinds thereafter.

1. T19070 to T930 - 9s/2h, I call 330 raise, opponent is all-in, he wins with 3h/2s when a three hits the river.

2. T18140 to T1860 - Qd5d, I raise 600, opponent goes all-in, and I call the additional 660. He shows jh/2c. Hits a jack on the flop and wins.

Now, I'm starting to sweat a little and I tighten up...could have been my mistake. Blinds are now 400/800

3. T16280-T3720 - 9d/8c, I’m raised all-in by 3320. I fold

4. T15480-T4520 - 10s/3s. I’m raised all-in by 3720. I fold

5. T13880 - T6120 - 7d/6h. I'm raised all-in by 5720. I fold

6. T13080-T6920 - 8c/6s. I’m raised all-in by 6120. I fold

Now the light has gone on and I've just realized he is going to go all-in every hand regardless.

7. T12280-T7720 - 2d/6s, raised all-in by 7320. I fold

8. T11480-T8520 - 2c/8h, I fold pre flop.

9. T11080-T8920 - jd/3c, raised 8520 all-in, I fold.

10. T10280-T9720 - Kh/2d, I limp to see if that may scare him to think I am trapping, no luck. He raises all-in for another 8920. I fold. I think this was my mistake hand, I should have gambled with him since it had become a crap shoot and I let him back in the match.

I have just lost the chip lead!

11. T9480 - T10520 - 2s/8d, of course he raises all-in and I have to fold. Didn’t I????

12. T8680-T11320 - 5s/5c, I’m going with this hand no matter what, so I decide to call just to ensure he goes all-in, he does, I call and he shows 10/10 and hits a 10 on the flop just to give me one last kick get in the groin for good measure.

19-1 chip lead, lost 12 pots in a row and lost the tourney. Is that some kind of record for choking?

Ok, I didn’t write this to rant about a bad beat (it wasn’t, I think he just kicked my ass), I was impressed with his strategy and conviction to pulling it off. I think I caught on too late and by the time I decided to gamble with him, it was too late.

Here are my main questions:

1. You've see the hands I got, where did I make my mistake?

2. What is the worst hand or range of hands you would go all-in with if you knew that your opponent was going to go all-in on every hand until he wins or loses all his money?

Thanks to all responders in advance!