 Nyorai kupfuurira kweiyi ndima - Walden akava nyanzvi muna 2000 uye zvakamutorera makore masere kukunda zita rake rokutanga rokuronga paShanghai Masters. Iye kubvira akahwina 2012 Wuxi Classic uye 2014 International Championshipuye ave ari mukati memakumi matanhatu epamusoro mumatanho ekupedza mwaka pazviitiko zvina. Aimbove mutambi wepasi rose weTop 6, Walden akasvika pazvikamu zveterevhizheni zveWorld Snooker Championship kanokwana kasere kubva muna 2021, nemhedzisiro yake yakanaka kuve semi-finalist muna 2013. 