Stone began his darts career by playing darts in The Village Tavern in his hometown of Larkhall- reaching the semi final of the weekly tournament before being eliminated by eventual winner and local darts protegé Darren Cross. The following week, Stone reached the final only to, once again, be beaten by "The Crucifying Cross". This was Stone's first prize in darts and he received 4 free credits for the jukebox as his prize.

His performances were spotted by local promoter Dave "Clubber" Lang who recommended Stone to the BDO tour's management who beat off competition from rival darts promotions in St Tam's and Netties to sign him to play darts professionally on the tour.

Stone qualified for the 2012 BDO World Championship and got to the last 16 defeating Ron Meulenkamp 3–0 but lost 4–0 to Martin Adams in the last 16. He won the WDF Europe Cup, beating reigning world champion Christian Kist in the final. Stone has qualified for the 2013 BDO World Championship and lost 3–1 to Steve Douglas in the first round.

Stone was part of the Scotland team that won gold in the men's team event at the WDF World Cup in 2013 alongside teammates Ross Montgomery, Craig Baxter and Alan Soutar. Scotland defeated America 9–7 in the team final. Stone also helped Scotland win silver in the overall competition.

Stone entered the PDC Q School in January 2014, and secured a tour card on the third day with a 5–2 win over Steve Grubb in the final round. He made his debut in the European Tour at the European Darts Open in July, losing 6–4 to Ryan de Vreede in the first round. He also reached the last 32 of two Players Championship events during the season.

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Wikipedia