2015 K League Classic

The 2015 K League Classic was the 33rd season of the top division of South Korean professional football, and the third season of the K League Classic.

Foreign players
Restricting the number of foreign players strictly to four per team, including a slot for a player from AFC countries. A team could use four foreign players on the field each game including a least one player from the AFC country. Players name in bold indicates the player is registered during the mid-season transfer window.

Matches 1–22
Teams play each other twice, once at home, once away.

Matches 34–38
After 33 matches, the league splits into two sections of six teams each, with teams playing every other team in their section once (either at home or away). The exact matches are determined upon the league table at the time of the split.

Relegation play-offs
The promotion-relegation play-offs were held between the winners of the 2015 K League Challenge play-offs and the 11th-placed club of the 2015 K League Classic. The winners on aggregate score after both matches earned entry into the 2016 K League Classic.

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Suwon FC won 3–0 on aggregate and were promoted to the K League Classic, while Busan IPark were relegated to the K League Challenge.

Top scorers
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Top assist providers
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Main awards
The 2015 K League Awards was held on 1 December 2015.

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Best XI
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Player of the Round
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Manager of the Month
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Attendance by club
Attendants who entered with free ticket are not counted.