Here's the good news
Some scientists claim that there is no hard evidence to suggest that sex before a competition is a bad thing. In fact, some studies show that pre-sports sex may in fact assist the athletes in a number of ways. Here are some facts:
While sex can burn up a lot of energy (if you're doing it right), the average couple doesn't even burn a hundred calories during their lovemaking sessions!
Even though sexual frustration may trigger an increase in aggression, pre-competition sex helps to reduce anxiety and increase relaxation
There is no evidence to date that suggests that pre-competition sex negatively effects the athletes agility
Ejaculation increases levels of testosterone which increases aggression, while long periods of abstinence causes testosterone levels to drop
According to one Italian researcher, who studied the effects of sex on performance, "After three months without sex, which is not so uncommon for some athletes, testosterone dramatically drops to levels close to children's levels. Do you think this may be useful for a boxer?"
Bit of an article on the subject