? "Rallye du metro"

Has anybody ever done a trip throught the metro network using every route at least once in one day?

Hat einer von euch schon mal eine Tour durch das ganze Metro-Netz innerhalb von einem Tag gemacht?

Nice...15 hours. Using the lines in order of their numbers wastes time.
So it should be possible to do faster.

I have done some calculations and this should be the fastest route with returning to start.
So start where you like (and use the direction you like):

Austerlitz
Bobigny
Jaures
Pre Saint Gervais
Louis Blanc
Chateau Landon (*4)
La Courneuve
Villejuf ou Mairie d'Ivry (*1)
Maison Blanche
Maire d'Ivry ou Villejuf (*1)
Place d'Italie
Bastille
Point du Lac
Balard
Motte Piquet
Raspail ou Denfert Rocherau (*2)
Mairie de Montrouge
Porte de Clignancourt
Marcadet Poissoniers
Front Populaire
Mairie d'Issy
Pasteur
Etoile
La Defense
Chateau de Vincennes
Nation
Porte Dauphine
Villiers
Pont de Levallois
Gallieni
Gambetta
Porte des Lilas
Mairie des Lilas
Chatelet
Olympiades
Saint Lazare
Saint Denis ou Asnieres (*1)
La Fourche
Asnieres ou Saint Denis (*1)
Chatillon Montrouge
Montparnasse
Nation
Mairie de Montreuil
Pont de Sevres
Michel Ange Molitor ou Michel Ange Auteuil (*3)
Javel Andre Citroen
Boulogne

(*1) Use the first train which comes and the drive the other branch
(*2) Use the station which you like for the transfer
(*3) You have to use second transfer if driving the list in reverse order
(*4) Louis Blanc - Chateau Landon
tunnel south via La Fayette & Chateau Landon / tunnel north via Faubourg Saint-Martin
If this can be seen as two different routes you have to drive this way, otherwise leave it out

[Update]
avec prolongement ligne 14 nord:

[...]
Olympiades
Mairire de Saint Ouen
Saint Denis Universite
La Fourche
Asnieres
Chatillon Montrouge
[...]

future: When line 14 reaches Maison Blanche the rallye will get greater changes.