I think I remember some discussion recently about doing two races in a
short period. Here is the tally on one (swedish, woman) skier here [in
sweden] for vasaloppets week:

km nummer Lopp Åktid Placering
Fri 30 77 Kortvasan 1:56:29 -
Sat 30 146 Tjejvasan 2:14:45 241
Sun 90 25 Öppet spår 6:33:33 -
Mon 18 389 Stafettvasan 7:57:51 -
Tues 45 23 Halvvasan 3:10:41 -
Wed 30 315 Skejtvasan 2:22:44 23
Sun 90 18098 Vasaloppet 8:04:08 443 [women]
Total km 333
Total hours 25:57
average speed km/hr 12.8

[note the Stafettvasan is a 5 person relay so she skied nominally 18km
but there is variance in the distance]


I think that is a reasonable week's activity!
(And I would be very happy with her times also)

kenneth