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Simulate SweatFest race intensity in Zwift

SweatFest Racing turns a weekly Zwift event into a season-long points contest. Its two 10-week seasons include Tuesday races, rider categories, overall standings and prime segments where extra points can change the result. That structure rewards more than a single sprint finish: riders need to sustain power, recover between attacks and remain consistent from one event to the next.

Zwift’s Interval Mode provides a structured workout with custom durations and power targets. It lets you rehearse the demands of a particular course without competing for position or risking your race result. Used well, it becomes a repeatable laboratory for testing threshold fitness, anaerobic bursts and the cost of starting too hard.

Australian riders can make that simulation especially precise by using local race times, recent power data and the conditions inside their homes. The aim is not merely to complete hard intervals, but to arrive at Tuesday’s event with enough energy to race the course, contest the prime segment and support the overall standings.

Read the race and rider profile

Start with the published course, event listing and race briefing. Note the distance, elevation profile, expected speed, category, number of laps and location of any prime segment. A flat race may reward repeated high-speed efforts, while a climbing course demands a different distribution of power. If the route includes rollers, record where they become steep enough to force riders out of the saddle.

Your current fitness sets the appropriate targets. Use your Zwift FTP as a reference, but also review recent race efforts because FTP can change with training, fatigue and terrain. Compare both absolute watts and watts per kilogram, particularly when comparing yourself with riders of different masses. A target that suits a 65-kilogram rider may be too demanding for a 95-kilogram rider, even when they are in the same category.

SweatFest’s season format also makes consistency important. A useful sporting analogy appears in this account of record-breaking winning streaks: exceptional performances matter, but repeated results create an advantage over time. Treat each race as one part of that larger achievement rather than an isolated test.

Build a course-specific interval workout

Begin with 12 to 15 minutes of easy riding, gradually adding short accelerations and high-cadence work. This prepares your legs without spending the energy you may need later in the workout. Follow the main set with an easy cool-down, since the purpose of a rehearsal is to practise finishing the event in a useful condition rather than simply accumulate fatigue.

Choose power ranges according to the race. Rolling terrain can be represented with blocks around 80 to 90 per cent of FTP, while steady climbing efforts may sit near 90 to 100 per cent. Attacks often require brief periods around 105 to 115 per cent, and a finishing sprint can reach 120 to 150 per cent or more for a short burst. These are guides, not universal prescriptions; use a lower target if the set feels disproportionately hard or your race category suggests a more conservative pace.

For a one-hour hilly race, a sample structure might include three repetitions of eight minutes at a sustainable race power, separated by three minutes of easy riding, followed by four 30-second accelerations and one five-minute effort at threshold. Shorten the recovery if the actual course offers frequent attacks, or extend the main blocks when the event demands a prolonged climb. The key is that each interval has a clear purpose linked to the route.

Remember that Interval Mode cannot reproduce every factor of the real event. There is no bunch to shelter behind, no wind gradient, no pursuit and no need to hold a wheel. Because draft protection disappears during the workout, the same power can feel harder than it does in a race. Compare the workout with recent event files rather than treating a successful interval session as proof that the race will feel easy.

Rehearse tactics, fatigue and attacks

A race simulation should include rhythm as well as raw power. Begin the main set at a controlled intensity, build gradually and avoid matching every acceleration from the first minute. Riders who reproduce their fastest opening efforts in training often discover that their legs fade on the final climb. Practising a steady opening block teaches you to preserve speed for the points-paying sections.

Prime segments deserve specific preparation. If one begins after a short rise, add a three-minute effort that leads into a 30- to 60-second surge. Follow it with a short recovery and another acceleration, reflecting the rapid changes in effort required to hold position. For a sprint finish, include repeated maximal efforts with full recovery so that practise does not diminish the quality of the final repetition.

Zwift’s on-screen workout controls can also rehearse race behaviours such as drinking, changing gear and keeping cadence smooth when fatigued. In a breakaway, use a steady pedal cadence near 85 to 95 revolutions per minute. During an attack, a lower cadence can represent climbing out of the saddle, while a sprint may require faster pedalling for a short period. These cues translate more effectively to a real event than simply staring at the power number.

The limitation is tactical response. Interval Mode cannot tell you when to follow a wheel, contest a prime or preserve energy for a teammate. Use the workout to prepare your physical capacity, then use an open Zwift ride or another low-pressure event to practise positioning. The two forms of preparation work together: intervals build the engine, while racing develops decisions.

Fit the session into Australian life

Because SweatFest is based in the Pacific Northwest, Australian riders should check the listed start time rather than assuming it aligns with a Tuesday evening at home. A Pacific Northwest Tuesday race can fall on Wednesday in Australia. Sydney and Melbourne use AEST or AEDT, Brisbane remains on AEST, Adelaide uses ACST or ACDT and Perth uses AWST, so daylight-saving changes can also alter the conversion.

Summer heat deserves attention even when the workout takes place indoors. A trainer in a Sydney, Melbourne or Brisbane apartment can raise the room temperature quickly, especially during an interval session. Use a fan, open a window where safe, cool the room beforehand and keep water within reach. Many Aussie riders are keen on data, but hydration and body temperature still affect the quality of a hard effort indoors.

Compact living spaces and housemates can also shape training. A smart trainer may need a protective mat, and the tyre can create a hum that carries through an apartment. Check pedal compatibility, chain wear and trainer calibration before the race week, and avoid placing loose equipment near the front wheel. Outdoors, Australians commonly combine virtual sessions with road rides, commuting and weekend café or bunch rides, so a demanding indoor workout may need to replace rather than add to an existing fatigue load.

Plan recovery around your local schedule. If Tuesday’s race occurs during your working day, schedule the harder interval session several days earlier and keep race day light. If it lands in the evening, finish work, eat a familiar meal and allow enough time to settle before joining. Time-zone changes and early starts can make otherwise sensible sleep plans difficult, so build your preparation around the actual event time rather than a generic training calendar.

A practical race rehearsal checklist

Complete the final simulation 24 to 48 hours before the event unless your coach has prescribed another timeline. It should produce useful data without creating unnecessary fatigue. Keep the session specific enough to mirror the course, but stop if form deteriorates or the workout stops representing the intended effort.

Review the completed file before race day. Look for the highest sustainable average, the strongest repeated surges and any point where cadence collapsed or heart rate rose unexpectedly. If you exceeded the intended pace in every block, the targets were probably too aggressive for the category. If the session felt controlled but produced weak sprint numbers, the workout may have lacked enough high-intensity work.

Handle any disputed result calmly and document the evidence. If timing, positioning or scoring appears incorrect, save screenshots, the activity file and the event details, then follow SweatFest’s guidance on respectful result protests. Clear records and measured communication protect both the rider and the race organiser. A disciplined Zwift interval workout should leave you physically prepared, tactically focused and ready to contribute to the points battle rather than merely complete another demanding session.