Mine was at the Inter University Gliding Competition at Lasham in 2008.
The week of flying really helped with pushing through to solo. Did a winch and a few turns and then joined the circuit, found myself going up along downwind, but I had committed to landed so did.
Brought the glider back to the front of the queue and flew off to do a Bronze leg, would have been bronze height too had I carried a logger, but great to be up at 5k shortly after solo!
Spent the afternoon doing a "cross country" in a T21.
My solo and bronze leg meant Leeds Uni won the comp that year.