1099 Misc income doesn't appear on Schedule C

My husband bowls professionally and receives 1099-Misc income from his tournament winnings. One payer lists the winnings in box 7 (non-employee compensation) which transfers to Schedule C where he can write off his expenses. Several other payers list his winnings in box 3 (other income) which does not transfer to Schedule C.

 

How do I get all of his bowling income to show on Schedule C, line 1 where it belongs? I run into this problem every year. Should I just "pretend" it was all reported in box 7?