Cochran-Siegle learned to ski at around the age of two, being taught by his mother Barbara Cochran, gold medalist in the slalom at the 1972 Winter Olympics in Sapporo, Japan.

[2] Cochran-Siegle made his World Cup debut in November 2011 at the Lake Louise downhill, but failed to finish.

[3] A week later in Colorado, he scored his first World Cup points in a super-G at Beaver Creek, finishing in 29th place.

However, his progress was interrupted in 2013 when he suffered injuries to his anterior cruciate and medial collateral ligaments during the downhill portion of the combined at the World Championships.

He finished the season with good results at the national championships at Sun Valley, where he was runner-up in the super-G and giant slalom and fourth in the combined.