200 miles on gravel roads
10.25 hrs
Weight 69 kg
Avg Power: 4w/kg
Hour 1
Average Power: 192w (2.8w/kg)
Normalized Power: 224w
Hour 2
Average Power: 219w (3.2w/kg)
Normalized Power: 279w
Hour 3
Average Power: 287w (4.2w/kg)
Normalized Power: 326w
Hour 4
Average Power: 265w (3.8w/kg)
Normalized Power: 292w
Hour 5
Average Power: 274w (4w/kg)
Normalized Power: 303w
Hour 6
Average Power: 253w (3.7w/kg)
Normalized Power: 273w
Hour 7
Average Power: 233w (3.4w/kg)
Normalized Power: 249w
Hour 8
Average Power: 228w (3.3w/kg)
Normalized Power: 259w
Hour 9
Average Power: 239w (3.5w/kg)
Normalized Power: 259w
Hour 10
Average Power: 271w (4w/kg)
Normalized Power: 294w
200 miles is a long day, especially on the Flint Hills gravel. Add in 20-30mph headwinds and scorching heat, and this could be the hardest ride of your life. […]
But what it really comes down to is his resistance to fatigue. Pro bike riders are among the fittest humans in the world, and they’re able to hold a pace that few of us could manage for an hour. Throughout the Unbound Gravel 200, Boswell’s average power (and normalized power) stays right around 4w/kg. The only easy outlier was the first hour, but to be fair, that was at six in the morning.
Hours 3, 4, and 5 were definitely the hardest, with the race splitting down from hundreds to less than 30, and then from 30 to 12. Hours 6-9 were mostly a battle of attrition, thanks to a cooperative front group that really didn’t want to get caught. In the final hours, the pace heated up again, and this is where the race was won.
After burning more than 7,000kJs, and riding near 4w/kg for more than 8 hours, Boswell is still able to accelerate at 400w up climbs, and close down attacks at over 500w.
“Power Analysis: Ian Boswell’s Ride at Unbound Gravel | VeloNews.Com.” Accessed June 11, 2021. https://www.velonews.com/events/monuments-gravel/power-analysis-ian-boswells-ride-at-unbound-gravel/
200 miles on gravel roads
3.3 hrs
Avg Speed 60.35kmh
Weight: 1731.8 kg
Avg Power: 73.5w/kg
2020 Dodge Journey
MSRP: From $23,675
MPG: 19 city / 25 highway
Towing capacity: 1,000 lbs
Dimensions: 192″ L x 72″ W x 67″ H