- IDENTITY
Our Story
25 years of 100 days
One approach — discovered in a book and proven on a mine — that grew into a global practice for changing organisations and lives. Click any milestone to read more.
2000 – 2007 · Discovering 100-Day Challenges
While working for a mechanised mining contracting company, Alrien van der Walt discovered the 100-Day Challenge approach in Robert Schaffer’s book The Breakthrough Strategy: Using Short-Term Successes to Build the High Performance Organization.
The first application was with a contracting team, focused on improving loading and drilling operations. By letting the operators, the union representative and the safety team develop their own solutions — and giving them space to implement those ideas over 100 days — the results sparked a lifelong journey of discovery, learning, and using 100-Day Challenges to change lives and organisations.
2008 – June 2015 · Inside Anglo American
Alrien led the roll-out of the Rapid Results 100-Day Challenge approach within Anglo American’s Technical Division — running challenges across the group’s iron ore, copper, diamond, platinum, coal, zinc, nickel and gold operations in South Africa, Chile, Zimbabwe, Namibia, Ghana, Ireland and Canada.
July 2015 · iResults is born
Alrien founded iResults, an independent consultancy company, taking the 100-Day Challenge methodology beyond Anglo American to a widening range of clients across mining, corporate, academic and public-sector settings.
2016 onward · Partnering with the Rapid Results Institute
iResults began working with the Rapid Results Institute (today Reinstitute) to bring the 100-Day Challenge approach into social-impact work across Africa — including partnerships with the World Bank, UN Women and government departments. This work was the catalyst for a new body of capacity-building material.
The shift · From facilitator to guide
The social-impact work prompted a shift in how iResults worked: instead of being the facilitator and designer who runs a 100-Day Challenge for an organisation, iResults became the guide who builds an organisation’s internal capacity to design, implement and support its own 100-Day Challenges.
2020 onward · The World of Impact

That shift gave rise to The World of Impact, an online platform built to carry this capacity-building work. It now underpins all of iResults’ capacity-building programmes, including the five-year Ending GBVF (Gender-Based Violence and Femicide) 100-Day Challenge programme, which runs across South Africa.
Today · iResults today
iResults still facilitates strategic projects and pilots directly, particularly when entering a new sector. But its main focus today is building the capacity of organisations to run their own 100-Day Challenges — which is why, since 2019, the vast majority of challenges in the portfolio have been delivered through capacity building rather than direct facilitation.