Oppressed by ball difference

With it looking very likely that everyone is going to break-up as a section, Ned has been trying to organise one last team event away from the office. His favourite idea involves a pool tournament, which he has organised in the past. He has been asking everyone if they are intereseted without actually telling them when he is proposing to do it. Jason has been winding him up about the last tournament, where Jason lost the final to Dan. Ned has been explaining that everybody pays £5 to go, part of which goers towards entry into the club. The rest of it being prizemoney for the winner. Apparently there should have been a play-off between the two of them, being a final, rather than Dan winning on "ball difference"-having potted more balls. It was late by the time of the final and people were leaving, so they decided to award the winner on "ball difference". Ned had got it all typed out, with spreadsheets of all the previous tournaments, with the results of all the games, stretching back years.
Dan came up from the other end of the office to talk to me about preparation for his counselling interview. He used to work with me on my old section, but now works in the furthest corner of the office away from my current section. Jason saw this as an opportunity and quized Dan about what he remembered about the tournament, which wasn't much. Dan went back to his end of the office while Jason continued moaning. Then he came out with his - "my people are used to being surpressed" -he meant oppressed, being mixed race; he like to be black when it suits him.
"You're oppressed?...he's Vietnamese...his family came over on a tiny boat to escape the oppression." I pointed out.
I went on to tell them about Lee's family coming over as refugees, and his story about staying in a fenced off camp for weeks before being dumped in the dodgiest area of the city when they were housed where nobody else would live.