I’m officially signed up! The Storming of Thunder Ridge and the Garret County Gran Fondo two of the great centuries of 2019. I used them both as training rides for the Great Divide. Both have a ton of climbing, way more than a typical century, but while SOTR is a slow buildup, the GCGF has many very steep grades. The GCGF has something called the Diabolicle Double, which is a double metric with even more climbing. More than 16,000 feet. That would make it the toughest one-day ride I’ve yet attempted, even worse than any single day on the Divide. Wish me luck.