Tuhia he haere tonu mo tenei irava - I whakataetae ia i te 2008 World Junior Championships i te 1500m. Kaore ia i neke atu i te waa tuatahi, ka mutu me te waa 4: 26.28. I te European U23 Championships i Lithuania, Treacy whakanohoia 18 i roto i te 1500m. I ngā Whakataetae Pākehā U23 o te tau e whai ake nei
I whakatauhia e ia he wa pai i te waa tuatahi o te 4:16.32, i tohu ai ia mo te whiringa toa. I roto i nga kaitono 12 whakamutunga, i mutu ia i te 10 me te waa o te 4: 25.97. I neke ia ki te tuaiwa i muri mai i te wa i whakakorea ai a Yelena Arzhakova.