(1) Pre Kickoff
Using a geofence(s) 'on entry' feature send a campaign to users that asks them who they think will win the game today. Create a #whowillwin and get users conversing on Twitter.
(2) Half-Time
Using the 'location' feature in the condition builder, target users that are located inside the event premises (i.e stadium). Send a campaign with a half-time deal "hope you are enjoying the game, get €2 off hot food at half-time"
(3) The After Party
Create a geofence that is set to 'on exit'. As the app users leaves the event premisses (i.e stadium) send a campaign announcing "Hope you enjoyed the game, join us at the after party at xyz venue"