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Tool Lab.

Calculators for Zwift and the road

Every tool RaceHub has built lives here. Each one answers a question you have before or during a race, and works from real data instead of rules of thumb.

W/KG3.6W/kg93 % CPRESERVE59%↑ recoveringKOM · TO GO1.2km5.8 % · ~2:00⚑ 14.0 km6−90 s12you9+10 sexample · invented names
DURING THE RACE · BETA VIA YOUR CLUB

Live Scout.

Your race cockpit on a phone or tablet next to Zwift: group, gaps, draft, next segment and the strengths of every rider in your pen. You pace the race on numbers, not on feel.

Open the Live Scout →
FRAMES · TEMPUS FUGIT · FINAL SPRINT#FRAME · LEVELUPGRADE★metres back1CANYONAeroad CFRL30012345★Top2CERVÉLOS5L40012345☆+1.0 m3SPECIALIZEDS-Works Tarmac SL9L40012345☆+1.1 m4PINARELLODogma F 2024L40012345☆+1.1 m5SPECIALIZEDS-Works Tarmac SL8L40012345★+1.2 m

Bike Lab.

The fastest Zwift bike for your route, computed in the pack rather than solo. A different set-up wins on the climb than on the flat.

Open the Bike Lab →
CLIMB · 5.7 KM · 514 MCP 215 WTarget 37:30 · Ø 201 Wridden 41:35

Segment Lab.

Your Strava segment as a Zwift workout: pick a target time, get the watts for every stretch, rehearse the KOM indoors.

Open the Segment Lab →
LIVER GLYCOGEN · 3 H AT 200 W0 h1 h2 h3 hBONKno fuel: at 1:24with 90 g carbs per hour: lasts to the finish75 kg · CP 240 W

Fuel Lab.

How much carbohydrate your race needs and when. Plus carb loading, sweat rate and a homemade gel.

Open the Fuel Lab →
Maratona dlesDolomites138 km · ↗4,230 mStart 6:30akmm0Start1,4363▲ 6 km …1,86613▲ 10 km…2,24330▲ 6 km …2,20144▲ 2 km …2,12246Feed2,12255▲ 6 km …1,87388▲ 10 km…2,23097Feed2,230111▲ 8 km …2,197118Feed2,097138Finish1,530RaceHub · race.vfworks.com35 MM WIDE

Top tube sticker.

Profile, climbs, feed zones and emergency number as a strip for your top tube, printed at actual size.

Open the sticker →
FTP · ZWIFT RACERS250 W · 3.3 W/kgahead of 63% · category C150 W250 W350 Wexample 75 kg · n = 155,453

W/kg calculator.

Watts and weight give you W/kg, your Zwift category and your rank among 155,000 racers. Plus your climbing speed.

Open the calculator →

In your club

Some tools work with the whole roster and only open inside a club: benchmark and form side by side, availability for race nights, the team builder for team time trials and the ladder radar. How a club gets onto RaceHub is explained in the Race Lab.

Zwift is a trademark of Zwift, Inc.; independent project, no affiliation. Rule-based, sources cited, no AI black box. Sport, not medicine.