Tobin Ortenblad discusses his transition from cyclocross to gravel racing and the challenges he faced. He emphasizes the importance of starting strong in gravel races and the need for high endurance and tempo work. He also mentions the significance of volume training and the balance between fitness and sustainability. Tobin shares insights on VO2 max training and the importance of repeatability in short, intense efforts. He discusses his training approach for different race seasons and the focus on threshold work. Tobin highlights the difference in effort between small wattage variances at high thresholds.