I did a super sprint as my first tri last year.... On no training with a weeks notice! Pretty much everyone there was new to the sport and the range of bikes (and time spent putting lip gloss on) made me chuckle! But everyone finished and the crowd were brill. It helped as there was a sprint that set off just after us, so you even the last person didnt look like they finished last.... If that makes sense! Go for it, you may well catch the bug! X