Training the Dark Side


Training the Dark Side

Training the Dark Side will teach you to run faster, improve endurance and push beyond your current heart rate threshold! Coach Diaz has revolutionized the way athletes approach training and program design. With nearly 30 years of clinical assessments on athletes he reveals The Flow.  Recognized as one of the best running mechanics in the country, he breaks down what you need to correct bad running form that leads to injuries and degrades performance.  Find out why he is sought out by athletes all over the world based exclusively on success and word of mouth!  Athletes run faster, improve endurance beyond expectation and this book outlines an approach that is uniquely his own and has proven to be a winning formula.

Digital e-book and pdf versions

Your current approach to training is now officially obsolete!  Once you read this, it will be hard to go back to the way you used to train.  No matter the distance, be it a 5k, a High Intensity training project like Hyrox or Running an Ultra Marathon, this program works!  What’s more, it’s ridiculously logical!  You will wonder why it’s not been thought of before!

Newly Released!

13.1 Training


The Half Marathon is my favorite running event!  It tests your speed and endurance.  I have been wanting to write this program for a long time.

Finally, it’s done and done in “Flow” fashion, very much like my Marathon Training plan but this one is 12 weeks.  Plenty of time to get into phenomenal running fitness and short enough not to dominate your life!  Perfect for Spartan Beast Athletes too!