Roller derby Triple header Tier2 Finals

Another invite to Photograph Roller derby. Decided after talking to a fellow derby photographer that I would use flash next time I photographed derby. The Bristol venue is very well lit so there is no real need for flash but took the oppertunity anyway. Talked to Head NSO (non skating official)  and Head Ref about using flashes and we were good to go.
On a side note it is a bit of a taboo to use flashes for rollerderby. I dont know why, but it is. You see photographers using F2.8 lenses so they dont have to bump up the ISO to get enough light. I dont have £3000 to spend on a lens so flashes make perfect sense to me.
I took some with flash and some without. The flashes do make for a very professional look.
Photos.....