Taft Hill 2-up Team Time Trial

Power summary of the 2Up TT last night with Will.

I think both of us were pretty cooked at the end of Worlds the night before (I did 55 minutes solo to finish) but we opted to go for it anyways. We found out at the start line that there was actually going to be a race against Jim and Mike, we had previously been assuming it was essentially just a race against the clock and the best time of the series, previously set by Will and Tim 2 weeks earlier.

Power_Summary

click to enlarge

First off, a power summary. Race time was 37min15sec. Average power was 327 Watts. with a 5% fatigue curve assumption, I should be able to do 103% of FTP… and well… that really didn’t happen.

Pacing was typical for not having done a whole heck of a lot of practice. It *felt* like I was getting pretty good recoveries in between some of the very first efforts and so I was pushing myself when on the front. A lack of 2upTT practice meant that I probably wasn’t reading the situation quite correctly. I did mention to Will that he was killing me when he pulled through after a few swaps, I think that comment may have helped to reign in both of our efforts and generally it was pretty good for the middle two quarters of the race. I had a weak patch from 28-32 minutes, which shows up in the power a bit but is better evidenced on a later image showing I was taking shorter pulls there.

Power_Overlay

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Next plot shows I was doing 50-100 more watts on the front than when in the draft. The two lines come together on the most climbey-portion of the course which Will led over the climbs and I pulled on the front on the flats between. I was OK with this, I had climbed better than Will the day prior so I should probably let him set the pace when the grade was up.

Summary of this plot is 356 Watts average while on the front, 297 Watts average while in the draft.

Effort of Pulls

Next plot breaks up the efforts, showing the discrepancy between front and back position was greater on the way home. Aerodynamics playing a larger role when the grade was slightly downhill and the speeds were higher. Evidenced also by Jim and Mike and all their aero gear helping to pull out a few seconds from us on that portion of the course. The lower plot shows there’s a much higher power variability when on the back, trying to stay in the sweet-spot of the draft.

Length of Pulls

Next plot shows who was taking longer efforts on the front. Generally we were pretty fair, I did a couple longer ones early, I think partly to help calm the pace. I then was only taking short efforts on the front late in the game when my legs started to struggle. For Will to take 4 efforts in a row during the closing stages that were 15+ seconds longer than mine was really really solid. That was the only thing that kept us close to the Great Divide boys.

Sumtotal – Hickey on the front for 22 more seconds than me.

Cadence

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Final plot is cadence. I was in the money zone. Despite having sore legs I did have enough focus to execute correctly and keep the cadence up. When the muscles are blown out it’s even more important to shift as much stress as possible to the cardiovascular system and running 95+ rpm is key for me there. You can see the two climbs in the first half where I stood out of the saddle when Will was on the front, even there I was still doing pretty good cadence to try and keep the stress on the cardio.

(19 seconds coasting excluded from the trend lines)

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  • Krabbe.ca says:

    [...] a recent example: The 2upTT I competed in last week [link]. The effort is particularly appropriate to inform the discussion as it is both “max [...]

  • Krabbe.ca says:

    [...] recap from last week, 37:15 duration, average power 327 Watts. Normalized Powerâ„¢ (Peaksware method) 336 Watts, and [...]

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