You can simply control and watch one or more dedicated servers of
Condor - The Competion Soaring Simulator with DSHelper.
With DSHelper you got the possibility to send automatic text when a event occured, the pilots can use the "TASKINFO" command, start and stop the dedicated servers automatical and much more.
DSHelper is very capable for the realisation of online soaring contests.
DSHelper is freeware and can give away for free.
I exclude liability (§1, Satz 2 Abs. 3 ProdHaftG) because all of this programs are noncommercial and because
I can't control the spreading of this software!