I can't make this one but if I could the cheapest train fare I could get is around £37 off peak day return. That involves splitting the tickets at Didcot to use my Network Railcard, and even then I would need to leave Paddington before 5pm. Other railcard holders (Senior etc) may be able to get that down to under £30. Basically anyone intending to go by train should take care not to pay more than they need to and look at split ticketing options. I don't think there are any savings to be made at this stage with advance bookings. There's a train back at 2217, which should be convenient enough if the game is decided within 90 minutes, otherwise there's another (the last one) at 2301.