It really depends on what they can get organised. The service is of course resourced to the level required to meet the everyday timetable. But if they can scrabble together extra stock and crew then they do tend to try and run extra services. I'm aware that they've run four car Pacer services from Middlesbrough to, I think, St Peter's on derby days and I think they've done similar from Newcastle to St Peter's. But it all depends on what they can cobble together!
In the past I'm aware that when there' a major event on somewhere in the North East they'll say in advance if they're not running extra services or later last trains so at least people can plan.
Slapdash...Cobble together...Can someone give us a TOC with a bit of credibility please.