Seems much stronger for sports than for adult, since 'score' is very informal and slang for pick-ups but is common usage for sports. 'Ground' also nicely infers the field, the track, etc.
The words go well together. Not ideally (like scoreboard, playground, etc.), but well, and they infer the scores of ground/field sports... and since 'ground' can also mean a place in general, nice as use for a site listing latest sports scores. (latestSportScores.com still avail, BTW)
It's a name that's a real chance to take for a reseller, so you may not get them to offer more than xx somewhere for it, low xxx if they really feel strongly.
An end user might think it's ideal, it is an attractive name... but it's still a little hazy in its meaning, and that makes a name like this a hard call; they might snap it immediately, or it might be months and no one quite 'feels' it.
I like it, it's a solid-sounding name, and if I wanted a scoreboard-type site I would certainly consider it, so I'll say strong value to end user, maybe anywhere from mid xxx to low x,xxx, since we're dealing with sports here and sports sites get a lot of traffic.
Nice, hope you dev it.