This form calculates the opening and closing times for RM-sanctioned randonnées of 1200km or more.

The recommended timetable for 1200km/90-hour events is the one defined in the "90-hour ACP" table below. It sets minimum and maximum speeds for distance ranges up to 1300km. For longer randonnées, different schedules are often employed.

Curiously, the 90-hour schedule used for the last few Paris-Brest-Paris randonnées does not follow the ACP-approved schedule! Therefore, a P-B-P 90-hour variation is included for comparison.

It is common for the organizers of 1200km randonnées to offer compressed time schedules (e.g., 80hrs, 84hrs) in addition to the 90-hour standard. This calculator offers an 84-hour and 80-hour schedule modeled on the 1995 Paris-Brest-Paris timetable. (In 1999 and 2003, there were all-too-frequent reports of the inter-control distances being wrong; hence, the time schedule was deemed too unreliable to be used as a reference.) Fitting speed ranges to any PBP timetable is problematic; it is clear that the organizers adjust control opening and closing times for their convenience.

For events longer than 1300km or those employing a different timetable, a custom selection of speed ranges is provided.

Questions should be directed to Jim Kuehn. Details of the algorithm may be of interest to those using this calculator to generate a custom schedule for a randonnée.


STEP 1: Indicate the event distance, starting date, and starting time.

Event distance: km
Starting Date (YYYY/MM/DD):
Starting Time (24 Hour Format, HH:MM):

STEP 2: Indicate the time schedule.

90-hour ACP
distance range (km) min. speed (km/h) max. speed (km/h)
0 - 2001534
200 - 4001532
400 - 6001530
600 - 100011.42828
1000 - 130013.33326
90-hour PBP
distance range (km) min. speed (km/h) max. speed (km/h)
0 - 2001530
200 - 4001528
400 - 6001524
600 - 100011.42823
1000 - 130013.33320
84-hour PBP
distance range (km) min. speed (km/h) max. speed (km/h)
0 - 2001634
200 - 4001632
400 - 6001630
600 - 100012.69825
1000 - 130013.33322
80-hour PBP
distance range (km) min. speed (km/h) max. speed (km/h)
0 - 2001738
200 - 40016.635
400 - 60016.632
600 - 10001328
1000 - 13001524
custom
distance range (km) min. speed (km/h) max. speed (km/h)
0 -
-
-
-
-
-

STEP 3: Choose units and output style.

Input distances are in: miles km
Display output distances in: miles km both
Display output dates as: MM/DD DD/MM

STEP 4: Enter the actual distance to each checkpoint. The location field is optional; if entered, it will appear in the table generated.

Checkpoint No. Distance Location (Optional)
1 0 (Start)
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

STEP 5: Submit the form.


Notes:
  • Times are shown in a 24-hour format; for example, 2:00 AM is shown as 02:00 and 5:45 PM is shown as 17:45.
  • It is assumed that all checkpoints are located within the same time zone.
  • The output is displayed as simple text for easy cutting and pasting.
  • After generating the table, use your browser's Back or Previous button to return to this form.