The result was harsh on Pattalung as for 75 minutes they more than held their own against their TPL opponents.
Thai Port opened the scoring in first half stoppage time from Worawut, and then two late goals from Ekkapoom and Jacob Aikionbare added the finishing gloss that painted over the cracks of another arduous performance.
In the first half, Ulrich Munze was the busier of the two keepers. The Pattalung number one didn't have much to do until he picked the ball out of the net just before half time.
The Swallows began to tire towards the end of the match and it was only then that Thai Port began to dominate.
In all credit to the TPL side, that's now their fourth clean sheet in a row and defensively they look solid. But if they do make the final, they would have to play either PEA, Muangthong or Chonburi. One has to wonder where the goals would come from if they wish to retain the trophy.
As for Pattalung, they can be proud of their effort tonight. They would probably swap a Toyota League Cup final appearance for promotion to Division 1 next season. If they play like they did this evening, they will certainly be strong contenders to win the Division 2 playoffs.
Also it has to be noted that the team from the south completely filled the away section at the PAT. That's fantastic considering they had to make roughly a 2,000km round journey. Most TPL teams can barely muster a couple of hundred fans.
The second leg will take place next Wednesday in Pattalung.