Rosersberg/ Arlanda IBK, RA19 was one of 81 clubs from Sweden that had teams playing during Katrineholm Innebandy Cup 2023. They participated with two teams in Pojkar 08 and Pojkar 07 respectively. The team in Pojkar 08 made it to the the 3-4 in Slutspel, but lost it against Landvetter Wings by 2-3.

In addition to this, Rosersberg/ Arlanda IBK, RA19 have participated in Katrineholm Innebandy Cup before. During Katrineholm Innebandy Cup 2022, Rosersberg/ Arlanda IBK, RA19 had two teams playing in Pojkar 07 and Pojkar 04/05 respectively. The team in Pojkar 07 made it to the the Final in Slutspel Band won it over Mesta IBK by 5-3.

Rosersberg/ Arlanda IBK, RA19 comes from Märsta which lies approximately 120 km from Katrineholm, where Katrineholm Innebandy Cup takes place. The area around Märsta does also provide 17 additional clubs participating during Katrineholm Innebandy Cup 2023 (Among others: Sigtuna IF IBK, Väsby AIK, Hässelby SK IBK, Vallentuna IBK, IK Sirius IBK, Bälinge IF, Frötuna IBF, Silverdals if, Täby FC and Bele Barkarby IBF).