How does man-to-man defense work in hockey?

The sequence always starts with the carrier. One defenseman presses the opposing attacker directly the moment he receives the puck. Once a pass leaves, that same defenseman sticks to his original man wherever he goes to get open: the only exception is a player without the puck, tracked only up to the blue line, a buffer zone that gives a little room while the play is not yet dangerous.

Every spot has its own mandate. A forward pressures the next receiver of the pass, under the same rule: if the puck moves again, he sticks to his man. A second defenseman handles the low zone rather than a specific opponent. The last two forwards each cover an opposing defenseman posted at the point, whether he steps into the slot or slides along the boards.

The system's strength is total clarity: no coverage handoffs, no moment where two players both think they are covering the same opponent, or nobody is. The attack gets very little possession time, and players without the puck struggle to find room for a return pass, since they can never skate away from their shadow.

The weakness is the exact mirror of the strength: the system has no collective safety net like the 2-3 or the low collapse zones provide. A single player losing his cover immediately creates a quality chance, with nobody else there to fill the vacated space. A very mobile attack, with a lot of position swaps, gradually wears the coverage down until it breaks, especially if the defensemen are slower than the attackers they are tracking.

No imaginary colored zones mark up man-to-man: every player literally follows one specific jersey, no matter where the puck moves. Watch a single individual matchup for a full shift instead: the moment a defenseman hesitates between following his man and helping a teammate reveals whether the system is still holding. An individual breakdown, or a real system problem? Shots and chances allowed, timestamped and located in RinkLog, tell the two apart.