This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Realize that someone who gets a high score (like you), publishes it here more likely than someone who fails or gets a moderate score. So we get an unrealistic idea about the scores. 86% is a great score.