Clinging on

Sometimes the daily grind can feel like climbing the sheer face of a mountain, and all that's keeping you hanging are the very tips of your fingers. This week, four inspirational female athletes tell us their secret to what has made the difference between clinging on and fulfilling their dreams and giving up and falling down.

A couple of months ago Sasha DiGiulian attempted the latest in a long line of extraordinary achievements. She wanted to become the first woman to "free climb" the toughest route of the infamous El Capitan in Yosemite. The Platinum route. An already-difficult task was made tougher a week or so into the climb when a storm hit... There was nothing left to do other than hunker down and cling on in her tiny 4ft x 6ft "portaledge", a specialised suspended shelter used for sleeping on big-wall climbs. Sasha has been telling me all about surviving and thriving her most audacious and frightening challenging to date.

In August the inaugural season of the Women's Pro Baseball League will get underway. The WPBL is the first professional baseball league for women for more than 70 years, and for one woman it will mark a significant staging post on the way to making her dream of a game truly available to all, come true. Justine Siegal was recently announced as the Commissioner of the WPBL a fitting position for the woman who has broken more barriers in the sport than anyone else. She became the first female coach of a professional men's baseball team, the first woman to throw batting practice to an MLB team, and first female coach employed by an MLB team, and like so many with a love for the game it started as a child, with grandpa in tow!

The Portuguese coastal town of Nazaré draws, siren-like, surfers from all over the world. Why? Well it's here that the largest recorded waves are produced and crash down. Lena Kenma is one of only a handful of women who can handle such an endeavour. Born in Germany she moved to Nazaré to pursue her dream of tackling all the Atlantic could throw at her. What she found was that it wasn't Mother Nature who provides the biggest challenge to success.

In 1982 Julie Moss made history when she crawled to the finish line, having collapsed just metres from the end of the Ironman World Championship in Hawaii. It was her first competitive triathlon and she came second, but as she explains to Not by the Playbook's Rebecca Kesby, that heroic fight for the line changed her life, and her attitude to the sport.

Photo: Rock climber, Sasha DiGiulian climbs to gold medal at the 2011 World Championships (Credit: Matt McClain for The Washington Post via Getty Images)