He played as a goalkeeper for the Berlin club BFC Germania. On 5 April 1908, in Basel, Switzerland Baumgarten was part of the national side in Germany's first ever international match which they lost 5–3 to the Swiss. This was his only appearance for the national team.
- "Schweiz - Deutschland 5:3" [Switzerland 5–3 Germany]. IFFHS. Retrieved 16 March 2011.
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