There have been 15 hat tricks scored on 15-game days, including seven last season. Four goals has been scored by a player twice, with both occurrences coming last season (Alex Ovechkin of the Washington Capitals on Oct. 7, 2017, and Mark Jankowski of the Calgary Flames on April 7, 2018).
Capitals center Evgeny Kuznetsov is the only player to have four assists on a 15-game day; he had an assist on each of Ovechkin's four goals on Oct. 7, 2017. There have been 28 three-assist games, with half of them occurring last season.
Ovechkin is the runaway leader in goals and points on 15-game days. He has played on all 13 of such days and is first in goals (18) and points (23).
Center Nicklas Backstrom, Ovechkin's longtime teammate with the Capitals, is second in points (17) and first in assists (14).