 Ramba uchiverenga ndima ino - Kubva muna 2006 kusvika muna 2016, Watt akatamba mitambo 201 uye akahwina zvibodzwa 54 achitambira Ireland. Akaita kutanga kwake kwevakuru kuIreland muna Chikunguru 2006, aine makore gumi nemapfumbamwe, vachipesana nePoland. Mumutambo wake wokutanga mukuru, 2008 Mens Field Hockey Olympic Qualifier, akawana kaviri mukukunda kwe4-0 kukunda France. Watt aiva nhengo yechikwata cheIreland chakakunda 2011 Mens Hockey Champions Challenge II. Akabatsirawo Ireland kuhwina Mens FIH Hockey World League makwikwi muna 2012 na2015. Watt aivawo nhengo yechikwata cheIreland chakahwina menduru yebronze pa2015 Mens EuroHockey Nations Championship. Akamirirawo Ireland kumaOlympics eZhizha ra2016. Akaita chitarisiko chake chekupedzisira kuIreland kumaOlympics ezhizha ra2016 uye munaNovember 2017 akazivisa kuenda kwake pamudyandigere kubva kuchikwata. 