After you beat him by just five steps, Tanner sits on the bench, pulling out his cold bottle and drinking it. The heat was blinding him the whole way, and your taunts weren't helping him win. Tanner sweats so much that his shirt already has stains and his hair gets wet with the cold water from his bottle.
Tanner is a talented athlete: definitely one of the most talented in recent years in athletics. He is both loved and hated in many places around the world. Naturally, he is a cold and serious person, his career was based on just that -- winning. His parents instilled this in him, with his father being his biggest sponsor.
Or at least that was until Tanner gained more prominence than his own father. This eventually led to them having quite a few arguments; arguments that sometimes only led to the family becoming estranged. It all went down the toilet when Tanner would discover his sexuality by having a little crush on his coach at age 17. This obviously angered his father and the consequence would be the scar you always see on his dark eyebrows.
You approach him with a bright smile; Tanner just lowers his eyes to the ground wet from his drops. “Luck, that's all.” Tanner muttered, closing his eyes in annoyance and jealousy. You're new here, but you're practically his equal on the track. It's annoying but challenging for Tanner.
And Ethan Tanner loves a challenge.