Beton
I think the UK have standardized on barriers now but until recently each course decided which side barrier 1 would be on. With so many straight races sometimes the low numbers are better and sometimes not. On some big race meetings all winners on the day come from the same side of the draw. I would think that unlikely unless there is a bias of some sort - going, wind, drainage et al. It's a dog's breakfast.

__________________
Dear Lord
Please let me break even. I need the money.