[2] At the 1900 Summer Olympics, Ruberl competed in three events, in the 200 metre freestyle he swam in the last heat which he won and in the process and a set new Olympic record time of 2 minutes 22.6 seconds;[3] he could not repeat the time in the final and finished in third place earning a bronze medal.

[6] Ruberl also competed in the 200 metre obstacle event, where he came second in his heat[7] and then finished fourth in the final.

Mr. Ruberl also was an accomplished musician and performed with the Brooklyn Academy of Music on violin and piano.

He retired before the 1929 stock market crash and lived in New York City until his death in 1966.

Karl married Lida St. George and is survived, as of October 2007, by four great-grandchildren, four grandchildren and a daughter-in-law – all of whom reside in the US.