Boquete de Zafarraya

Overview

Boquete de Zafarraya is a Category 1 climb in Spain, running 8.8 km from a start elevation of 295 m to a summit of 923 m. Over that distance it delivers a net elevation gain of 628 m at an average gradient of 7.17%. The category and the length together mark it as a serious sustained effort rather than a short punch — long enough to reward pacing discipline and steep enough to punish anyone who goes out too hard.

The gap between the numbers tells the real story. The net gain is 628 m, but the total ascent is 857 m — a difference of 229 m. That means the profile undulates: you climb, give some height back, then climb again. Every metre you descend is a metre you have to earn a second time, so the legs pay for more vertical than the net figure suggests. Treat 857 m, not 628 m, as the workload you are actually pacing against.

How the Gradient Unfolds

An average of 7.17% is a smoothed figure. It hides both the recovery dips baked into that 229 m of extra ascent and the sharp ramps that spike well above the mean. The steepest recorded pitch hits 16.27% — more than double the average — so expect at least one section where the road kicks hard and your cadence drops.

• Flatter or descending sections where the road gives height back, then reclaims it
• Repeated short climbs stacked between those recovery dips
• A steepest ramp near 16.27%, where you shift down and protect your effort

Pacing Notes

On a climb this undulating, chasing an even speed is a trap — you would burn matches on every steep ramp and coast the dips. Instead, hold an even effort anchored to your sustainable power output. Let your speed rise on the shallower and descending sections and accept it dropping on the steep pitches, while keeping the effort steady. The 229 m of hidden re-climbing means small surges compound quickly, so ride within yourself early. If you do not know your ceiling, run the FTP estimator first and set your target off that.

Gearing

The 16.27% maximum dictates your setup. On ramps that steep you want spin, not grind, so fit a compact or sub-compact chainset paired with a wide-range cassette — a 34×32 or 34×34 gives you a bailout gear that keeps cadence up when the road pitches over 16%. Check your chainset and cassette before you ride; discovering you have run out of gears mid-ramp is not the place to find out.

Summary

• Length: 8.8 km
• Average gradient: 7.17%
• Maximum gradient: 16.27%
• Net elevation gain: 628 m
• Total ascent: 857 m
• Category: 1

Boquete de Zafarraya is a sustained Category 1 effort where the undulation, not just the average, defines the difficulty. Pace to your effort, gear for the 16.27% ramp, and respect the full 857 m of climbing.