Southbound Performance

Analytics

What's happening over time, how sure the numbers are, and what to look into.

Labels: measured straight from your watch or what you told us · calculated worked out from those · estimated with a ± · prediction with a range and what it's based on.

1

Capability

What could you run if you raced today?

Bests measured

Your fastest mile to marathon: whole runs and the fastest stretch inside a Strava watch file, or a time you type (the fastest counts). Tap a time to type your own.

2

Training

How much, how hard, and did the key sessions hit their targets?

3

Response

How is your body answering the training?

4

Recovery

HRV, resting heart rate, sleep and how you feel, against your own normal.

5

Preparation

Is this block building what your next race needs?

6

Model check

Every model on this page tested against what actually happened. Tap to open.

7

Data

Where the numbers come from, and how much of it there is.

Athlete State

Everything above in one place, the way weekly planning will read it: what kind of fact each number is, how sure, and what it stands on. Tap to open.

COROS + Strava

Data Connections

The sections above come from COROS (your runs, laps, sleep, HRV and resting heart rate) and your imported Strava history. Southbound keeps a copy on your account, so they stay here even when COROS is slow.

DATA CONNECTION

Connect COROS

Brings your runs, laps, sleep, HRV and resting heart rate into Southbound for the charts above and your Readiness on Today.

Not connected
ACTIVITY DATA Mileage • Pace • HR • Training Load
RECOVERY DATA Sleep • HRV • Resting HR
Strava archive

Import from Strava

Adds your whole Strava history to the charts above. Runs COROS already has are recognized and counted once. Your phone or computer reads the archive itself: only a summary of each activity is saved to your account, never your routes.

No Strava history imported yet.

How to get your Strava archive
  1. On a computer, go to strava.com and sign in.
  2. Click your picture (top right), then Settings, then My Account.
  3. Under "Download or Delete Your Account", click Get Started.
  4. Under "Download Request", click Request Your Archive. Strava emails you a link (it can take a few hours).
  5. Download the .zip from that email, then come back here and click Choose the Strava .zip. Already unzipped it? Choose the folder instead.

Importing again later is safe: activities already here are updated, not doubled.

Diagnostic not run yet.
COROS LIVE DATA

Training Snapshot

Southbound is reading your recent COROS training, fitness, and recovery data.

Not synced yet
Connect COROS above to load live data.
Recent Activities — Last 28 days
28-Day Mileage — Running distance
Training Load — Recent COROS load
Recovery — Current status
VO₂ Max — COROS fitness assessment
Marathon Prediction — COROS race prediction

Recent COROS Runs

Connect COROS to populate recent activities.
DATA CONNECTION

Connect Strava

Pull your Strava runs into Southbound so your analytics can include activities you log or sync there, alongside your Marathon training plan.

Not connected
ACTIVITY DATA Mileage • Pace • Recent Runs
STRAVA LIVE DATA

Strava Runs

Southbound is reading your recent Strava running activities.

Not synced yet
Connect Strava above to load live data.
Recent Activities — Last 28 days
28-Day Mileage — Running distance

Recent Strava Runs

Connect Strava to populate recent activities.