Former NHLer Zdeno Chara runs 3:16 marathon to qualify for Boston

In six months, the former NHL defenceman has lowered his marathon personal best by 22 minutes

The 2023 Boston Marathon: how to qualify and register

Qualifying standards for next year’s Boston Marathon are unchanged from recent years

Boston Marathon cutoff is 1:39 for 2020

Even with qualifying times being lowered by five minutes across the board for 2020 and increasing the field size to 31,500, runners still had to beat their qualifying time by more than a minute and a half