RugbyTipping.com RugbyPredictions.com and Rug.by I've been wanting to develop them for a while, but can't seem to find the time so am considering passing them on. Also have a few which I used for testing/modding Forum software; xfdev.org, xfdev.com & vbdev.org. They've served their purpose and are no longer used ...
RugbyPredictions might get you something (low £xxx), it's worth listing (maybe on a UK domain sales site/forum), along with rug(.)by. Although the second is a hack domain, so whilst it's cool it doesn't have much value without development. I don't value RugbyTipping (let it expire, or list somewhere that is free). As for the others, they could be nice brands. High $xx to low $xx for xfdev.com, or sell for a bit more as a set.