“I’d overhear coaches and other runners say, “That doesn’t look like a girl,” or “Why is this boy here with us?” I had no problem going right up to them and introducing myself. “Hello. I am Caster. I am a girl. Would you like to see? I can drop my shorts here for you.

“They were all good soccer players, but they knew they weren’t great. And most of them were playing for fun, they weren’t dreaming of getting on airplanes and being a professional athlete like I was. “Doesn’t matter what you say. You can’t understand,” I’d say to them. “I can see light with my running. All of you are here just chasing a ball around a field. Where’ that going to take you?” I had to be as harsh with them as they were being with me. I wanted to live in a proper city, travel the world, be known and appreciated for my talents.

“I didn’t do well in the event. I came in fourth and to this day, I don’t know what happened except to say I couldn’t find the zone. I didn’t yet understand that racing wasn’t just about being fast, it was also about strategizing and quieting the mind. I was used to running alone, my only company at times just cows and sheep and goats. I was used to running in South Africa. I couldn’t yet control my nerves. I resolved to learn and never lose again.

“This was the first time I’d ever been to a shopping mall, the first time I’d even seen or been in an athletics-wear store. The store manager was sponsoring the athletes who were heading to the World Junior Championships. I’d never owned anything close to brand-new sports attire. They gave us a pair of sneakers, a pair of new track spikes, and a white and blue track suit. I was on top of the world.

“And here is what made Seme an excellent coach. He knew I had been coaching myself. He first wanted to understand what I had been doing, mostly on my own, to bring me to the point where he would notice me. And I told him. I was doing the things I’d seen athletes at bigger schools with actual tracks do. I told him I would run by myself when I wasn’t taking care of my family home. I remember Seme nodded and then just added to the foundation I’d laid for myself. He found my running form to be too loose, he felt I swung my arms too much and held my head too far back. He would eventually help me get to the form that made me a winner—arms locked in close to my body, chest high, head centered. Seme was a coach who understood where you were. This is why, despite everything that came between us in the future, I will always say he is the best coach I’ve ever had. He became like a father to me. Seme knew when to push and when we needed to rest.