For his first team in the regional competition Ulmanis scored 60 out of the teams 78 goals and was called up to the flagman of Latvian football - Daugava Rīga. In his first game for Daugava - an international game against Polish GKS Katowice - Ulmanis scored 3 goals.
He was popular among Latvian football fans for his "lazy" and relaxed playing manner which he was able to alter with unexpected outbursts of energy in form of shots on goal or passes to the center. His popularity was partly also connected with his last name Ulmanis (the same as former Latvian president Kārlis Ulmanis) which also brought him troubles with the Soviet authorities.
He played for Daugava for almost his entire career - from 1955 until 1969, scoring many important goals and having been elected the team captain. However the team with him never achieved the biggest goal - qualification to the top league of the USSR despite having been very near it several times. After Daugava he spent two years as player-manager for Rīgas radiorūpnīca and since that he has been coaching youth players.