Fewer than 50 Explorers Grand Slam completions
Before Colin's record attempt, fewer than 50 people in history had ever completed the Explorers Grand Slam, most taking 5 to 10 years to do so.
Snapshot · The School of Greatness
54 Days Alone in Antarctica, Pulling 375 Pounds | Colin O’Brady
Explore episode
Jul 3, 2026
Where this was said
The Explorers Grand Slam World Record
At 6:55 · chapter starts 6:40
Lewis asks about Colin's world record history, and Colin walks through the Explorers Grand Slam: seven summits — Everest, Denali, Kilimanjaro, and four others — plus the North and South Poles, reached via the last degree of latitude (69 miles each). [1] — Colin O'Brady "Explorers Grand Slam in 139 days: Colin set the world record for the Explorers Grand Slam — all 7 summits plus both poles — completing all …" 06:33 Most of the fewer-than-50 people who'd ever completed the Grand Slam took five to ten years, training for each expedition separately. Colin's audacious innovation was to do all nine back-to-back in 139 consecutive days — a project that required extraordinary physical preparation, logistical precision, and an uncompromising belief that the human body could endure that load without rest.
Everest to Denali in 100 Hours
Exhausted at 26,000 feet after summiting Everest, Colin called Jenna. Her response: put your boots back on right now. The helicopter, the red-eye flights, the logistics chain she'd quietly assembled meant that 100 hours after standing on Everest's summit, Colin was at the base of Denali — and set two world records in three days.
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