Leo Boivin

defenseman · 1951-52 to 1969-70 · TOR, BOS, DET, PIT, MNS · 1,204 games

Every comparison Leo Boivin leads among NHL skaters since 1917-18: 1 claim in 1 family, the best first. A row leads its field now, or set a record that was later broken. Each links to its board.

plus-minus · a season

set it4 games with 2+ plus-minus in BOS's first 13 games of 1959-60a record when he got there, 1st of 25 player-seasons, past 3 · at game 13 only · broken by Tim Horton 1959-60, 5, Nov 10, 19594games

A lead is an interval: the stretch of N where he is first, worded at one N inside it. "One of 4" is a tie for first. A record "when he got there" was first among the careers that had reached that point by then. The field is every NHL skater career since 1917-18, or every player-season where he dressed for half the team's games so far. The method is in the board's notes.