The Lancers (11-10, 3-5 Western Athletic Conference) used a 17-4 run to take a 57-46 lead on Heading's layup with 9:25 to go.
The Redhawks (13-10, 1-7) closed the deficit to seven on Morgan Means' 3-pointer that made it 59-52 two minutes later and Seattle would get no closer from there.
De'jon Davis had 12 points and 11 rebounds for Cal Baptist, the fourth double-double of his freshman season.
The Lancers committed just four turnovers and converted 15 points on 10 Seattle turnovers.
NBA agents reject NCAA's certification proposal
The NBPA sent a letter on behalf of certified player agents to the NCAA that refuses to submit to a proposed certification process to work with undergraduate players testing the NBA draft.
Kentucky gets SF Clarke, No. 4 prospect in 2021
Small forward Terrence Clarke has announced he is headed to Kentucky. Clarke, the No. 4 prospect in the Class of 2021, is expected to reclassify into the Class of 2020.
How Kentucky's two latest signings will impact the Wildcats
Lance Ware and Terrence Clarke committed to Kentucky during a busy 48-hour stretch for John Calipari's program. Here's how they'll fit.