Menu

Power Analysis: Data from Liege-Bastogne-Liege

  • By Shawn Heidgen
  • Published Apr. 24, 2013
Chris Anker Sörensen put forth a massive effort at Liège–Bastogne–Liège en route to a 39th-place finish. Photo: Graham Watson | www.grahamwatson.com

Chris Anker Sörensen (Saxo-Tinkoff) has provided TrainingPeaks with his SRM powermeter file to analyze just what it takes to finish just over a minute behind the winner in the oldest of the spring classics, the 261.5-kilometer Liège-Bastogne-Liège. Click here to view the interactive file.

Results

1. Daniel Martin, Garmin-Sharp, in 6:38:07
2. Joaquim Rodriguez, Katusha, at :03
3. Alejandro Valverde, Movistar, at :09
39. Chris Anker Sörensen, Saxo-Tinkoff, at 1:14

Race summary data

39 kph
5744 KJ
461 TSS
238 Average Watts
307 Normalized Power
143 Average Heart Rate
87 Average Cadence

How it unfolded

Sörensen’s role for the race was to work for Saxo’s team leaders Alberto Contador and Roman Kreuziger, who recently won the Amstel Gold classic. It was Sörensen’s job to stay as fresh as possible until the team needed him to help close the gap to the leaders. The lead group had six riders (none from Saxo), and the opportunity came to help close the gap when Sörensen was asked to go to the front at the 180km mark on the Col du Rosier.

It was in this section, prior to the famous climb up La Redoute, where we see Sörensen hit his 10-minute peak power for the race of 412 watts. In the span of just 9km, Sörensen, along with his teammate Mads Christensen, slashed nearly 2 minutes off the gap to the leaders.

10-minute Peak Power

4.3 km
5.6 percent Average Grade
25 kph
412 Average Watts
6.2 w/kg
414 Normalized Power
167 Average Heart Rate
91 Average Cadence

In typical Sörensen fashion, once he made his way to the front he continued to race aggressively all the way to the line. Sörensen set his 60-minute peak power in the last 60 minutes of the race. He averaged 306w, which may not sound like a lot but with all of the climbing well above threshold pace, along with the coasting on descents, average watts can be deceiving. One metric that shows the real stress of racing is the normalized power, a better reflection of the physiological costs of the effort. Sörensen’s normalized power for the final 60 minutes was a staggering 364w, which is nearly his functional threshold power.

60-minute Peak Power

42 km
42 kph
306 Average Watts
4.6 w/kg
364 Normalized Power
160 Average Heart Rate
80 Average Cadence

Sörensen showed just how intense the sport of cycling can be and the importance of teamwork. In the end, Saxo’s race strategy did not work as planned, but the team fought to the finish and came up just short. Nicki Sörensen finished 17th, 21 seconds behind the winner.

Editor’s Note: Thanks to TrainingPeaks.com, we are looking at Saxo-Tinkoff rider Chris Anker Sörensen’s power data from last weekend’s Liège–Bastogne–Liège. Today, Shawn Heidgen, a USA Cycling certified coach, former professional cyclist, and Education Specialist at TrainingPeaks, recaps Sörensen’s data from the one-day race. For more, follow Shawn on Twitter.

FILED UNDER: Pro Power Analysis / Training Center TAGS: / /

Stay Up to Date on Everything Cycling

Subscribe to the FREE VeloNews weekly newsletter