James joined Robertson as the only players in NBA history to rank in the top 25 in both scoring and assists. James' assist on Kevin Love's 3-pointer with five minutes left in the second quarter gave him 6,387, moving him ahead of Norm Nixon and into 25th place.
Robertson ranks 11th all-time in scoring (26,710) and sixth in assists (9,887).
James has already reached a number of milestones this season, including the youngest to score 25,000 points. Now he joins Robertson on another exclusive list.
"Every time there's a young great player everybody talks about Michael (Jordan), but to me he's always been more like a Magic (Johnson) or an Oscar type player because of his vision," Magic coach Scott Skiles said. "That's what makes him so difficult. If you think you're going to give him a steady diet of running and double teaming him, he's going to carve you up."
James matched a season high with 13 assists to go with 15 points and six rebounds.