How A Play-In Round Changes Late Season Incentives

A play-in round sits between the regular season and the playoffs, contested by teams just outside the guaranteed places. Its purpose is to fix an incentive problem rather than to add matches.

The problem is the empty middle of the table

In a closed league with a draft, teams that cannot reach the playoffs gain nothing from winning and improve their draft position by losing. The final weeks become competitively empty for a substantial group.

That is bad for the teams' supporters and for the league's broadcast partners, who are selling games in which one side has no reason to win. The structure itself is producing the outcome.

Fines and rules against deliberate underperformance address conduct without changing the incentive. The play-in changes the incentive directly.

It extends the qualification line downward

By making several additional positions contestable, the play-in gives teams that would otherwise be eliminated a reason to keep winning into the final weeks. The zone of meaningful games widens.

Teams just below the cut are pulled into competition, and teams just above it must keep winning to avoid dropping into an extra elimination game. Both ends of the boundary become live.

The effect is measurable in how late in the season teams field their strongest available lineups, which is the behaviour the league was trying to restore.

Seeding within the play-in creates its own ladder

The higher-placed teams typically get more than one chance to advance, while the lowest must win consecutive elimination games. Regular season position therefore still carries value inside the round.

This graduated structure is what stops the play-in from erasing the meaning of the games that preceded it. Finishing higher buys margin for error rather than a bye.

The cost is diluted regular season value

A team that finishes well above the play-in line has spent months earning a position that a team from below can reach in two games. Some of the season's separating work is undone.

Coaches argue that the round exposes teams to injury and short rest immediately before a long postseason, which is a real competitive cost borne by the qualifying teams.

It sits alongside the draft rather than replacing it

The underlying incentive to lose comes from a draft that rewards poor records, and the play-in only narrows the group for whom that reward is the best available outcome.

Leagues address the remainder by flattening the odds of the draft lottery, so the two mechanisms work on the same problem from opposite ends of the table.