CHAPEL HILL — North Carolina’s season of redemption is off to an impressive start in the fifth and final season for all-everything forward Erin Matson — field hockey’s answer to Charlie Justice, Michael Jordan, Phil Ford or Mia Hamm. Losing is alien to the program, and the Tar Heels dealt with an uncommon share of that last season. No. 2 UNC continued to put that behind it Friday, moving to 3–0 with its third win over a ranked team, this one a 4–3 ACC-Ivy Challenge win over No. 13 Princeton in their home opener at Karen Shelton Stadium.