Stephen Scullion is an Olympic marathon runner representing Ireland. Beyond his professional running career, he has turned his social media into a captive community of runners. Drawing on the wealth of knowledge he has amassed over the years, he began sharing advice with others looking to improve their running. He became an online coach, sharing a great deal of wisdom on his YouTube channel, which boasts 145k subscribers and amasses millions of views, offering insights into his training and daily learnings.