Leg pain after workout?

Could this be too much of a workout? 25 mile bike road ride the night before. 15 mile bike ride in mountain bike park. 1 Mile swim. 5 minute warm up on a bicycle at the gym, 10 minute stretch. 1 hour focusing on leg muscles. My legs are as sore as crap! To walk I have to bend my knees a little or it hurts too much. Pain starts at mid calf, goes straight through the backside of knee, stopping at the end of the rectus femoris muscle. Dosnt feel like I pulled a muscle. I guess I just worked that area a little too much?