CHAPEL HILL, N.C. North Carolina scored eight second-quarter goals and then held off one final Colgate charge for a 19-12 NCAA Championship First Round victory here Sunday. The Raiders tallied the final three goals of the first period to grab a 4-3 lead. But North Carolina, seeded third in the NCAA field, responded by outscoring Colgate 8-2 to make it 11-6 at the half. Colgate rallied again in the third, scoring three straight and then the first goal of the fourth to pull within 15-12. But that's as close as the Raiders would come. Ryan Walsh and Chase Wittich led the offensive attack with a hat trick apiece. For Walsh, it was his fifth hat trick of the season and 24th of a glorious career. Wittich posted his very first collegiate three-goal game. Ground balls were decisive, with North Carolina claiming a 43-28 edge. The Tar Heel advantage was a combined 27-10 in the second and fourth quarters, when they outscored the Raiders 12-3. Colgate's season concludes at 10-6. The Class of 2015 posted a 41-24 record that was one victory shy of matching the best four-year run in program history. North Carolina improves to 13-3 and advances to play sixth-seeded Maryland next weekend in Annapolis.