The keeper of the record decides the criteria, so the PGA Tour only counts PGA Tour events. For sure, if he won 12 events in a row, 2 of them being European events, and then lost whatever Buick event he then happened to play next, plenty of people would say that isn't the record, so it cuts both ways.
It's up to everyone else to decide if they see it as a record. I personally am one of the few that consider his 4 majors in a row to be a Grand Slam, so what do I know?
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However, I will say I wouldn't consider it a streak if he lost a Euro event.
Man, I getting confused. Does Tiger even play 11 PGA Tour events in a year? Of course he does, but for him to get the streak all in the same calendar year, he'd have to start early - and of course skip Riviera.
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