Thailand won a dramatic last ball 2-run DLS thriller at Forthill to finish top of Group B and set-up a semi-final clash against Papua New Guinea.

Revised to 17-overs due to earlier rain, Thailand started well to post 59 for 2 after ten, but Leah Paul (3 for 10) pulled the game back well for Ireland with two wickets in two balls to dimiss Boochatham with a return catch and Kamchomphu miscuing a big hit to Laura Delany at mid-off.

Coming back to bowl the 13th, Paul bagged the prized scalp of Chaiwai, again hitting to mid-off, to send the dangerous opener on her way for 24 and leave half of Thailand's side back in the pavilion with 71 on the board after 12.4 overs.

On a slow pitch, Thailand reached a respectable 92 for 7. A team known for their big-hitting, Thailand only put away four boundaries – smart singles and quick running instead allowing the batters to rotate the strike and build a total.

In response, Ireland lost regular wickets but a 32-run stand between Paul (11) and Richardson (21) provided Ireland with hope of chasing down the total against a disciplined bowling attack.

But with the rain coming down and slightly below on DLS, Ireland fell away in the closing stages as they tried to keep up with the ever increasing DLS par score.

Despite being eight down, Ireland went into the final over needing an achievable eight runs from six balls.

A two off the penultimate ball meant Ireland needed two for a super over and three for a win. Knowing Ireland needed a boundary, Kamchomphu enticed Maritz down the track in attempt of the glory shot but instead the ball bounced straight into the hands of Koncharoenkai who took the bails off nab a wicket on the last ball.

Thailand's Sutthiruang (3 for 13), highest wicket-taker in the competition with 10, combined with Laomi (3 for 17) to do the bulk of the damage and keep Ireland to second place in Group B.

Ireland will now face Bangladesh in the first semi-final at Forthill.