There are 46 total events on the 2018-19 PGA Tour calendar, and Kevin Na feels like he can contend in about "seven or eight" of them.
The Charles Schwab Challenge is one of those tournaments.
Na signed for a bogey-free, 8-under 62 Friday, opening with an eagle and following up with six more birdies. At 8 under for the week, he was just one back of leader Jonas Blixt at the end of the morning wave.
Coming off a fourth-place finish last year, Na has carded 62 or better in three of his last six rounds at Colonial.