Century Training Plan
Twelve weeks to a 100-mile ride. The weekend ride ramps from two hours to four and a half, with sweet spot and tempo work midweek to make those hours cheaper.
Base made you durable. This makes you fast. A base block raises how long you can go. A build block raises how hard. This one runs threshold intervals as the backbone, adds VO2 max work to lift the ceiling above threshold, and keeps enough Zone 2 in the week that you can absorb both.
Free, with no trial. Pick a start date and your training days; the sessions land on your own calendar. Switch or stop at any point. Every workout in it can be ridden without an account.
Week 1: 2×15 at threshold. Harder than sweet spot and it should feel it. Keep the endurance rides honest-easy.
Week 2: 4×8 at VO2. These are pacing exercises — go out too hard on interval one and the set is over.
Week 3: the full threshold builder and 5×5 VO2 in the same week. The hardest week of block one.
Week 4: recovery. Take it fully — the second block is where the fitness actually appears.
Week 5: threshold plus 4×4, the most studied VO2 session there is. Five minutes easy between efforts.
Week 6: 3×20 sweet spot, 4×8 VO2, and a three-hour ride. Sleep and eat like it matters, because this week it does.
Week 7: threshold builder and 4×5 VO2. The last genuinely hard week of the block.
Week 8: openers and a test. You should arrive at the test feeling springy rather than fresh.
It is designed to be ridden after sweet spot base or a winter base block. Coming into it without that foundation is the most common way riders blow up in week five: the intervals are not harder than base intervals by a little, they are harder by a lot.
Eight weeks, four rides, one recovery week at the midpoint, and a retest at the end that also serves as the entry point to a specialty plan.
It is the phase between base and your event. Base builds aerobic capacity with high volume at low intensity; build converts that into power at and above threshold, with lower volume and much higher intensity.
Effectively yes. Threshold and VO2 sessions are only productive if you can recover from them, and recovery capacity is what base builds. Riders who skip base usually stall somewhere in week five.
Two for most riders training six to eight hours, three at the very top end. This plan uses two, separated by easy days, because the adaptation happens in the recovery rather than during the interval.
Training works in blocks. These plans pick up where this one leaves off.
Twelve weeks to a 100-mile ride. The weekend ride ramps from two hours to four and a half, with sweet spot and tempo work midweek to make those hours cheaper.
Twelve weeks and five rides a week for a long, hilly event: endurance volume, sweet spot and threshold power, and dedicated low-cadence climbing work.
Six weeks of race sharpening: hard starts, 30/30 repeaters, Rønnestad intervals, and primers, for riders whose events are decided by repeated surges.