Enduro Timekeeping Basics

Intro

Enduro Riders attempt to maintain an exact schedule, regardless of the difficult terrain and conditions they may encounter.
Participants are provided a route sheet, prior to the start, with speed averages to maintain, mileage markers and length of the resets, free times, start, finish, and gas stops. The club posts mileage markers on the course at all major points.

At any given point on the course, it is known exactly when each riders row is due. It is up to the rider to know where and when they are supposed to be at any given time.
Checkpoints can be located at any of many possible spots. Check crews will mark the time on the rider's score card in the form of which row number is due.
After the event, the riders arrival times are compared to their due times for each checkpoint.
Penalty points are calculated and awarded for each check, based on deviation from a perfect schedule.
The riders with the lowest number of penalty points from all the checks are awarded trophies in their respective classes.

Definitions

Key Time -

The scheduled starting time and scheduled time of arrival at each checkpoint for a rider on row OO. (Row Zero)
Key Time will be set off the Master Time clock. Set your watch to this clock at sign up.

Possible –

Checkpoints can be located only at an even 1/10th of a mile, and only when that lines up exactly at :00 seconds of a given minute.
Memorize the rates from the chart below, or make a roll chart with our free software. All possible checkpoint locations are listed on the Roll Chart <--Click to learn more about roll charts.

Free Zone –

A "Free Zone" is a distance on the race course where no checkpoints are possible. The host club can declare any mileage range to be a free zone.
In addition, Timed checkpoints, including Known Controls, cannot be located closer than 3 ground miles apart. Therefore 3 ground miles before, or 3 ground miles after a timed checkpoint can be considered "Free Zones". For Gas Stops, timed checks can be no closer than 2 miles before, or 3 miles after the Gas stop.

Reset –

A point along the course where the posted Mileage is advanced to some higher mileage. Example: Reset odometer from 10.1 miles to 14.6 miles.
This gives a rider on schedule a chance to rest for the period of time it would have taken to ride to the new mile marker.

Free Time –

A point along the course where the Mileage remains fixed while the time is allowed to run. A rider on schedule would stop and wait until the Free Time has run out, then he would proceed down the course. It has an effect very similar to a Reset, but you don't have to fiddle with your odometer.

Ground Mileage –

The actual Mileage traveled by a rider who completes the entire event, which is the posted Mileage minus any Resets.

Checkpoints

Checkpoints are located along the course where crews will mark the time of the rider due on your scorecard. They will record the minute, and seconds if an Emergency check. If you are on time, you will be due.
The Key Time and the Mileage for each check are posted near the flags. The Mileage accuracy for the check location must be within 1 tenth of a mile, while the clocks used at the check must be within 10 seconds of the master Key Clock. The colors of the flags indicate to the rider the type of checkpoint.

Points Dropped

Penalty Points - You don't want these. Usually called Points Dropped they are calculated from how many minutes late or early you were to any given checkpoint. Add up all the points from each checkpoint for your final score.

Checkpoint Flags

As you ride, you'll see these flags which indicate which kind of checkpoint you are entering

Secret – (Red & White) An unknown, timed checkpoint.

Emergency – (Green & White) Same as a Secret check, except the minutes and seconds are recorded.

Known Control – (Yellow) A timed checkpoint whose location is known to all participants.

Start Control – (Yellow) A timed checkpoint whose location is known, where the participants can arrive early, but must wait until time to go.

Observation – (White) An unknown, un-timed checkpoint where no time penalty is recorded.

 

Scorecards

The riders actual arrival time is shown at each checkpoint and compared to the expected arrival time for each checkpoint.

Scoring

After the race, penalty points are computed based on the rider’s variance from a perfect schedule.
Points computed as follows:

All checks -

EARLY: More than 15 minutes – disqualified from that point.

LATE: More than 60 minutes and 59 seconds – disqualified from that point.

Secret -

EARLY: 2 points for the first minute, plus 5 points for each additional minute

LATE: 1 point for each minute.

Emergency -

The major points are computed like a Secret check, with Tie-breakers points placed after the major points.

Tie-breaker points are the total number of seconds from the 30 second point of the rider’s due minute.

Known -

EARLY: Zero points for early up to 15 minutes, 2 points for each minute for an early departure.

LATE: 1 point for each minute.

Possibles Chart

To ease course layout and scoring, timed checks can only be located where a whole tenth of a mile falls on a whole minute.
This limits the locations of possible checkpoints to a finite number, and the rider can calculate the mileage and time of each possible checkpoint before the event.

To give you an idea of how fast 24 mph is check out this chart, which lists the time and distance between possible checkpoints for each speed average from 1 to 99 MPH.

MPH MILES MINUTES MPH MILES MINUTES MPH MILES MINUTES
1 .1 6 34 1.7 3 67 6.7 6
2 .1 3 35 3.5 6 68 3.4 3
3 .1 2 36 .6 1 69 2.3 2
4 .2 3 37 3.7 6 70 3.5 3
5 .5 6 38 1.9 3 71 7.1 6
6 .1 1 39 1.3 2 72 1.2 1
7 .7 6 40 2.0 3 73 7.3 6
8 .4 3 41 4.1 6 74 3.7 3
9 .3 2 42 .7 1 75 2.5 2
10 .5 3 43 4.3 6 76 3.8 3
11 1.1 6 44 2.2 3 77 7.7 6
12 .2 1 45 1.5 2 78 1.3 1
13 1.3 6 46 2.3 3 79 7.9 6
14 .7 3 47 4.7 6 80 4.0 3
15 .5 2 48 .8 1 81 2.7 2
16 .8 3 49 4.9 6 82 4.1 3
17 1.7 6 50 2.5 3 83 8.3 6
18 .3 1 51 1.7 2 84 1.4 1
19 1.9 6 52 2.6 3 85 8.5 6
20 1.0 3 53 5.3 6 86 4.3 3
21 .7 2 54 .9 1 87 2.9 2
22 1.1 3 55 5.5 6 88 4.4 3
23 2.3 6 56 2.8 3 89 8.9 6
24 .4 1 57 1.9 2 90 1.5 1
25 2.5 6 58 2.9 3 91 9.1 6
26 1.3 3 59 5.9 6 92 4.6 3
27 .9 2 60 1.0 1 93 3.1 2
28 1.4 3 61 6.1 6 94 4.7 3
29 2.9 6 62 3.1 3 95 9.5 6
30 .5 1 63 2.1 2 96 1.6 1
31 3.1 6 64 3.2 3 97 9.7 6
32 1.6 3 65 6.5 6 98 4.9 3
33 1.1 2 66 1.1 1 99 3.3 2