First of all, let me begin by saying that you are NOT going to like what I'm about to say.
After visiting your website, based on my experience in creating, designing & writing website content for active people -- including Gym Rats, Runners, Whitewater Enthusiasts & Martial Arts Devotees -- I think you need much more than quality writing, engaging content & personality to reach & hold visitors. That is especially true for the U.S. market.
People here in the States are highly visual, and the website I looked at is too static / too stagnant to hold anyone's attention for long. That leads me to believe that you are looking for more than just a skilled writer... you really need someone who combines a full "Creative Spectrum" of skills, vision, experience, wisdom... and strong Marketing & Promotion instincts.
For the record, I'm an award-winning Creative Director, Art Director & Copywriter, with 14 national, state & local Advertising & Design awards. I have also been the Editor / Publisher of an award-winning City Magazine and Editor / Publisher of a six-state, regional, Industry newspaper. Beyond that, I have contributed to three books by McGRAW-HILL -- writing about Marketing, PR, Special Events, Promotion, etc. -- and I worked for two years in the 1990s, writing a Marketing, Promotion & Communications Encyclopedia for PRENTICE HALL.
I have an MBA in Marketing & Management, a Bachelor's degree in PR & Journalism, and more than 25 years of experience.
Lee Sinoff