PTG Database Analysis
ESL Major Series One, also called EMS One, was a Europe-focused competition series organized by ESL. Its 2013 CS:GO program included Spring, Summer and Fall seasons, each combining online competition with live finals. ESL announced a USD 156,000 combined prize fund across four CS:GO seasons that year; the individual Counter-Strike editions are recorded separately from the series.[1][2]
Liquipedia lists RaidCall as the series sponsor and says the competition continued under the ESL One brand in 2014. EMS One also included Dota 2, which is outside this Counter-Strike S-Tier page audit.[1]

