The Therwil Flyers tied the best-of-five semi-final series with the Challengers at 1-1, after winning Game 2 2-1 on Sunday, September 14 at the Heerenschürli in extra innings. The C's tied the game in the bottom of the eight inning, as Tobias Siegrist drove in Jesus Martinez with two outs. And the C's had the winning run on second base in the ninth and the tenth innings, but couldn't cash in. The Flyers scored the go-ahead run with one out in the top of the eleventh inning on an error by the C's defense. In the bottom half of the frame Francisco Colindres reached base and advanced to second with two outs, as Jesus Martinez drew a walk after falling behing 0-2 in the count, but the Flyers worked out of the jam.

Game 3 will take place on Saturday, September 20 at Therwil, while Game 4 will be played on Saturday, September 27 at 7 pm at the Heerenschürli ballpark. In the other semi-final series the Zürich Barracudas have a 2-0 lead over the Lucerne Eagles.