· 4 min read
Paris-Roubaix in laps of the lake: famous rides measured in Tour du Pain
Paris-Roubaix is 31 laps of the lake in Tour du Pain. The game has one road, an 8.3 km loop around a French lake, so every distance becomes a number of laps. We took nine famous rides, from an Ironman 70.3 bike leg to Milan-San Remo, and worked out how many laps each one is, how long it would take at a steady pace and how much game bread it would earn.
The rules of the game
One lap is 8.3 km, straight from the game's course data. Laps are the distance divided by 8.3, nothing more. For time we picked a steady 30 km/h, which is about what 150 W gives you on the loop in the game: a lap takes about 17 minutes at that power for a 75 kg rider riding alone. Faster riders can halve the hours in their head; the laps stay the same.
Tour du Pain also hands out a game baguette every 5 km, so we counted those too. They're game bread, not food.
Nine famous rides, in laps
| Ride | Distance | Laps of the lake | Hours at 30 km/h | Game baguettes |
|---|---|---|---|---|
| Ironman 70.3 bike leg | 90 km | 10.8 | 3 h 00 | 18 |
| Maratona dles Dolomites, long route | 138 km | 16.6 | 4 h 36 | 27 |
| A century, 100 miles | 160.9 km | 19.4 | 5 h 22 | 32 |
| Tour de France 2026, stage 20 | 170.9 km | 20.6 | 5 h 42 | 34 |
| Ironman bike leg | 180.2 km | 21.7 | 6 h 00 | 36 |
| Elfstedentocht, the skating route | 199 km | 24.0 | 6 h 38 | 39 |
| Fietselfstedentocht, the cycling tour | 235 km | 28.3 | 7 h 50 | 47 |
| Paris-Roubaix 2026 | 258.3 km | 31.1 | 8 h 37 | 51 |
| Milan-San Remo 2026 | 298 km | 35.9 | 9 h 56 | 59 |
A few that made us smile
Tour de France 2026, stage 20 ran 170.9 km from Le Bourg-d'Oisans to Alpe d'Huez on 25 July. That's 20.6 laps, and it ends on a climb, so you'd take the Col du Pain turn-off on the last one. The Col is 974 m long; Alpe d'Huez is 13.8 km. We won't pretend they're the same.
Paris-Roubaix 2026 was 258.3 km on 12 April, with 54.8 km of cobbles in 30 sectors. The cobbles alone are 6.6 laps. Tour du Pain's road is smooth tarmac all the way round, which is either a relief or a cheat, depending on who you ask.
Milan-San Remo 2026 was 298 km on 21 March, the longest race here: 35.9 laps and close to ten hours at our pace.
The whole Tour de France 2026, all 21 stages, was 3,245 km. Divide by 8.3 and you get 390.96. Call it 391 laps of the lake, or 108 hours at 30 km/h.
The Ironman ones are real training rides
The Ironman bike leg is 180.2 km and the 70.3 bike leg is 90 km, so these two are more than trivia. Triathletes do ride these distances indoors. Tour du Pain has workouts built for it, such as "IM Long Ride 4 h", "IM Simulation 3 h" and "70.3 Simulation 2 h", and zone 2 rides up to five hours. In ERG mode the trainer holds the power, so your laps go by at whatever watts the workout asks. See indoor training for triathlon and ERG workouts in your browser for how that works.
An Ironman bike leg at 30 km/h is exactly 6 hours and 21.7 laps. Our honest advice: put on a podcast.
The Elfstedentocht, twice
The Elfstedentocht is the famous Dutch skating race through the eleven cities of Friesland, about 199 km from Leeuwarden and back. It needs a hard winter and hasn't run since 1997. There's also a cycling version, the Fietselfstedentocht, over 235 km. You can ride either one in laps of a French lake in November, which is about as far from Friesland as it gets.
How long does a lap take for you?
At 200 W the game's physics gives about 15 minutes a lap; at 250 W about 14. A lap with the Col du Pain is 9.93 km instead of 8.3, so the laps go up but the count doesn't change much. Riding in a group is more fun for the long ones: on a planned coffee ride everyone rides beside the host whatever their watts, and voice and chat are part of the game.
To see a lap before you commit to 31 of them, ride the demo, no trainer needed.
Sources
Checked on 8 November 2026: 2026 Paris-Roubaix (258.3 km, 54.8 km of cobbles), 2026 Milan-San Remo (298 km), 2026 Tour de France (stage 20, 170.9 km; total 3,245 km), Ironman Triathlon (180.2 km and 90 km bike legs), Elfstedentocht (about 199 km; the cycling tour 235 km) and Maratona dles Dolomites (138 km long route). A century is 100 miles, 160.9 km. Lap length and lap times are from Tour du Pain's course and physics code.