Brandon Throop, a Toronto runner, participates in the TCS Toronto Waterfront Marathon to pursue a Guinness World Record. His primary goal is to raise funds for the Princess Margaret Cancer Foundation, which saved his life. Throop, diagnosed with non-Hodgkin lymphoma, credits the foundation for his recovery.

Throop, now cancer-free, uses running to reconnect with his former self. He started slowly, building up from short runs. His fundraising efforts have raised over $137,000 towards his $150,000 goal. Donations support cancer research at Princess Margaret. Read more racing coverage.

Despite the challenging marathon course, Throop insists on running in Toronto. He aims to set the record past the Princess Margaret Cancer Centre, in front of supporters. His dedication reflects his gratitude for the foundation's impact on his life. Related: Kenyan Marathoner's Record Under Scrutiny After Doping Ban.

This original Runner World brief is based on reporting from Canadian Running. Visit the source for its complete reporting, context and any later corrections.