First Endurance emails
First Endurance sends about 3 emails a week through Klaviyo, most often on Tuesday around 4 AM Eastern.
- ESP
- Klaviyo
- Emails a week
- about 3
- Busiest send time
- Tuesdays at 4am ET
- Last sent
- Today · Oct 29
- Tracked since
- Apr 2026
- Emails collected
- 77
Recent emails
Oct 29, 2026 10:27 AM
Train Harder. Recover Smarter. Save 20%.
Oct 27, 2026 10:20 PM
Train Harder. Recover Smarter. Save 20%.
Oct 27, 2026 8:05 PM
Make Your Training Count
Oct 23, 2026 12:37 AM
The easiest thing you'll do today
Oct 22, 2026 12:36 AM
What to expect when committing to the system
Oct 21, 2026 10:55 PM
The easiest thing you'll do today
Recent subject lines
All subject linesSubject lines average 34 characters. Each one opens the email it came from.
| Picture | Sent (Eastern) | Subject | Preview text |
|---|---|---|---|
| Oct 29, 2026 10:27 AM | Train Harder. Recover Smarter. Save 20%. | Unlock a complete endurance fueling system. | |
| Oct 27, 2026 10:20 PM | Train Harder. Recover Smarter. Save 20%. | Unlock a complete endurance fueling system. | |
| Oct 27, 2026 8:05 PM | Make Your Training Count | OptygenHP powering marathon PRs | |
| Oct 23, 2026 12:37 AM | The easiest thing you'll do today | Your future self says thank you | |
| Oct 22, 2026 12:36 AM | What to expect when committing to the system | A system creates confidence and serves you better | |
| Oct 21, 2026 10:55 PM | The easiest thing you'll do today | Your future self says thank you | |
| Oct 21, 2026 12:35 AM | Hard sessions only pay off if you can recover. | Ultragen completes the system | |
| Oct 20, 2026 10:53 PM | What to expect when committing to the system | A system creates confidence and serves you better |
Archive
View full archiveOctober 2026 24 emails
View allHard sessions only pay off if you can recover.
Oct 21, 2026 12:35 AM
What to expect when committing to the system
Oct 20, 2026 10:53 PM
Oct 20, 2026 1:29 PM
The fuel serious endurance athletes train with
Oct 20, 2026 12:34 AM
Hard sessions only pay off if you can recover.
Oct 19, 2026 10:52 PM
Oct 19, 2026 12:33 AM
When First Endurance sends
13% of its emails arrive in the 4 AM hour, with a second, smaller wave around 10 PM. Tuesdays are the busiest day.
| 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mon | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 0 |
| Tue | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 5 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 3 | 1 |
| Wed | 1 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 2 | 3 | 0 | 0 | 0 | 1 | 1 | 0 | 2 | 0 |
| Thu | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 4 | 0 | 0 | 0 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| Fri | 2 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
| Sat | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| Sun | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 0 |
| Mon | Tue | Wed | Thu | Fri | Sat | Sun | |
|---|---|---|---|---|---|---|---|
| 12a | 1 | 1 | 1 | 2 | 2 | 0 | 1 |
| 1a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 4a | 1 | 1 | 2 | 2 | 3 | 0 | 1 |
| 5a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 6a | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| 7a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 8a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 9a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 10a | 1 | 1 | 1 | 2 | 2 | 0 | 1 |
| 11a | 0 | 0 | 1 | 2 | 0 | 0 | 0 |
| 12p | 0 | 1 | 0 | 4 | 1 | 0 | 0 |
| 1p | 0 | 5 | 1 | 0 | 0 | 1 | 0 |
| 2p | 0 | 1 | 2 | 0 | 1 | 0 | 0 |
| 3p | 1 | 0 | 3 | 0 | 0 | 2 | 0 |
| 4p | 0 | 0 | 0 | 2 | 0 | 0 | 0 |
| 5p | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| 6p | 0 | 0 | 0 | 1 | 1 | 0 | 0 |
| 7p | 1 | 1 | 1 | 0 | 0 | 0 | 1 |
| 8p | 1 | 1 | 1 | 0 | 0 | 0 | 1 |
| 9p | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 10p | 1 | 3 | 2 | 0 | 1 | 1 | 1 |
| 11p | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
FewerMore(busiest cell: 5 emails)
Based on 77 emails received from Apr 21 to Oct 29, 2026. Times in US Eastern. How we collect · When all brands send
How often First Endurance sends
Complete months have run between 6 and 18 emails.
- Busiest month
- Jun 2026, 18
- Quietest month
- Sep 2026, 6
- Busiest day
- Tuesday, 16
- Quietest day
- Saturday, 4
About First Endurance
- ESP
- Klaviyo
- Sites
- firstendurance.com, firstendurance.ca
- Tracked since
- Apr 2026
- Emails collected
- 77
- Emails a week
- about 3
- Last sent
- Oct 29, 2026
- Sends from
- newsletter@
firstendurance.com - Subject length
- 34 characters avg
Counts include automated emails such as a welcome series.
Similar sending frequency
| Latest email | Brand | ESP | Website popularity | Emails a week | Busiest day | Last sent | |
|---|---|---|---|---|---|---|---|
 6666 Equine Supplements6666equinesupplements.com | Klaviyo | about 3 | Thursday | Oct 28, 2026 | Klaviyo · about 3 a week · busiest Thursday · last sent Oct 28, 2026 | ||
 Activ Dog Healthactivdog.com | Klaviyo | about 3 | Monday | Oct 26, 2026 | Klaviyo · about 3 a week · busiest Monday · last sent Oct 26, 2026 | ||
 Active Growactivegrowled.com | Klaviyo | about 3 | Thursday | Oct 29, 2026 | Klaviyo · about 3 a week · busiest Thursday · last sent Oct 29, 2026 |
