Calibrating The Treadmill Distance; Recording An Ultra Run Activity; Swimming; Swim Terminology - Garmin D2 MACH1 Owner's Manual

4 Follow the on-screen instructions to start a running
activity and pair the devices.
5 Press START to start the activity timer.
6 After you complete your activity, press STOP, and
select Save.

Calibrating the Treadmill Distance

To record more accurate distances for your treadmill
runs, you can calibrate the treadmill distance after you
run at least 1.5 km (1 mi.) on a treadmill. If you
use different treadmills, you can manually calibrate the
treadmill distance on each treadmill or after each run.
1 Start a treadmill activity
2 Run on the treadmill until your watch records at least
1.5 km (1 mi.).
3 After you finish the activity, press STOP to stop the
activity timer.
4 Select an option:
• To calibrate the treadmill distance the first time,
select Save.
The device prompts you to complete the treadmill
calibration.
• To manually calibrate the treadmill distance after
the first-time calibration, select Calibrate & Save >
Yes.
5 Check the treadmill display for the distance traveled,
and enter the distance on your watch.

Recording an Ultra Run Activity

1 From the watch face, press START.
2 Select Ultra Run.
3 Press START to start the activity timer.
4 Start running.
5 Press LAP to record a lap and start the rest timer.
NOTE: You can configure the Lap Key setting to record
a lap and start the rest timer, start the rest timer
only, or record a lap only
page 16).
6 When you are done resting, press LAP to resume
running.
7 Press UP or DOWN to view additional data pages
(optional).
8 After you complete your activity, press STOP, and
select Save.

Swimming

The device is intended for surface swimming. Scuba
diving with the device may damage the product and will
void the warranty.
NOTE: The watch has wrist-based heart rate enabled
for swim activities. The watch is also compatible with
the HRM-Pro , HRM-Swim
™
both wrist-based heart rate and chest heart rate data are
available, your watch uses the chest heart rate data.
8
(Starting an Activity, page 6).
(Activities and App Settings,
NOTICE
, and HRM-Tri accessories. If
™ ™

Swim Terminology

Length: One trip down the pool.
Interval: One or more consecutive lengths. A new interval
starts after a rest.
Stroke: A stroke is counted every time your arm wearing
the watch completes a full cycle.
Swolf: Your swolf score is the sum of the time for one
pool length and the number of strokes for that length.
For example, 30 seconds plus 15 strokes equals a
swolf score of 45. For open water swimming, swolf
is calculated over 25 meters. Swolf is a measurement
of swimming efficiency and, like golf, a lower score is
better.
Critical swim speed (CSS): Your CSS is the theoretical
speed that you can maintain continuously without
exhaustion. You can use your CSS to guide your
training pace and monitor your improvement.

Stroke Types

Stroke type identification is available only for pool
swimming. Your stroke type is identified at the end of
a length. Stroke types appear in your swimming history
and in your Garmin Connect account. You can also select
stroke type as a custom data field
Screens, page 16).
Free Freestyle
Back Backstroke
Breast Breaststroke
Fly Butterfly
Mixed More than one stroke type in an interval
Used with drill logging
Drill
page 9)

Tips for Swimming Activities

• Press LAP to record an interval during open water
swimming.
• Before starting a pool swimming activity, follow the on-
screen instructions to select your pool size or enter a
custom size.
The watch measures and records distance by
completed pool lengths. The pool size must be correct
to display accurate distance. The next time you start a
pool swimming activity, the watch uses this pool size.
You can hold MENU, select the activity settings, and
select Pool Size to change the size.
• For accurate results, swim the entire pool length, and
use one stroke type for the entire length. Pause the
activity timer when resting.
• Press LAP to record a rest during pool swimming
Rest and Manual Rest,
The device automatically records swim intervals and
lengths for pool swimming.
(Customizing the Data
(Training with the Drill Log,
page 9).
Activities and Apps
(Auto