Rafael Nadal lost at the very beggining of the tournament. That's why I find tennis as an insecure bet, like most of the individual sports. However, if all your predictions are right, I'll follow your next one ! My prediction thread is here : https://bitcointalk.org/index.php?topic=1325135.0. I focus mainly on soccer, but I may try other things in the future. If they're right and that you allow me, I'll repost them in my thread. Maybe I could help you on soccer and you on tennis !