Mermaid Race Series
Mermaid Race Series
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T9 MERMAID RACE SERIES

While we can't gather in person this year, the Mermaid runs are back in an all new, still swag-heavy way – virtually! You choose the course, but whether you’re running your first 5K, working on a new half-marathon PR, or tackling a tri, you can count on our kickass online community supporting you every step of the way...and on some seriously sweet bling at the finish line.

So grab a friend, the baby jogger, the pup pack, or fly solo: together apart, let’s rise up and throw down. We'll be right "there" with you!

T9 Mermaid Race Series

While we can't gather in person this year, the Mermaid runs are back in an all new, still swag-heavy way – virtually! You choose the course, but whether you’re running your first 5K, working on a new half-marathon PR, or tackling a tri, you can count on our kickass online community supporting you every step of the way...and on some seriously sweet bling at the finish line.

So grab a friend, the baby jogger, the pup pack, or fly solo: together apart, let’s rise up and throw down. We'll be right "there" with you!

Upcoming Races

Upcoming Races

T9 Mermaid Race Across California

07/05/21 – 10/13/21

T9 Mermaid Race Across California

Walk, jog, or run 20 miles or bike 600 miles

Register Now

T9 Mermaid San Francisco

11/14/21

T9 Mermaid San Francisco

In person and virtual 5K, 10K, Sirena 10 mile, Youth Dash

Register Now

Race Across California
T9 Mermaid San Francisco

07/05/21 – 10/13/21

T9 Mermaid Race Across California

Walk, jog, or run 20 miles or bike 600 miles

Register Now

11/14/21

T9 Mermaid San Francisco

In person and virtual 5K, 10K, Sirena 10 mile, Youth Dash

Register Now

T9 Mermaid Race San Francisco

07/05/21 – 10/13/21

T9 Mermaid Race Across California

Walk, jog, or run 20 miles or bike 600 miles

Register Now

T9 Mermaid San Francisco

11/14/21

T9 Mermaid San Francisco

In person and virtual 5K, 10K, Sirena 10 mile, Youth Dash

Register Now

Past Races

Past Races

T9 Mermaid Streaking Challenge

01/01/21 – 01/31/21

T9 Mermaid Streaking Challenge

31 days of movement

Love Grand Slam

02/01/21 – 02/28/21

love grand slam

Complete 1mile, 5K, 10K, Half Marathon in one month

International Women's Day

03/8/21 – 03/15/21

International women’s day

5K, 10K or Half Marathon, 7 days to complete

24 Hour Virtual Relay

5/15/21 - 5/16/21

24 hour virtual relay (2nd annual)

Kickoff the first day of spring

Broken Marathon

04/1/21 – 04/30/21

Broken Marathon

Finish a marathon by completing twenty six “1 mile” runs

T9 mermazing virtual run

05/09/2021 - 05/16/2021

T9 mermazing virtual run (2nd annual)

5K, 10K, Half Marathon, Sirena

T9 Mermaid Virtual Triathlon 
& Duathlon

06/01/21 – 06/30/21 

T9 Mermaid Virtual Triathlon & Duathlon (2nd Annual)

Sprint, Olympic, Half, Aquabike, Paddle

T9 Mermaid Streaking Challenge
Love Grand Slam

01/01/21 – 01/31/21

T9 Mermaid Streaking Challenge

31 days of movement

02/01/21 – 02/28/21

love grand slam

Complete 1mile, 5K, 10K, Half Marathon in one month

International women’s day
24 hour virtual relay

03/8/21 – 03/15/21

International women’s day

5K, 10K or Half Marathon, 7 days to complete

5/15/21 - 5/16/21

24 hour virtual relay (2nd annual)

Kickoff the first day of spring

Broken Marathon
T9 mermazing virtual run

04/1/21 – 04/30/21

Broken Marathon

Finish a marathon by completing twenty six “1 mile” runs

05/09/2021 - 05/16/21

T9 mermazing virtual run (2nd annual)

5K, 10K, Half Marathon, Sirena

T9 Mermaid Virtual Triathlon 
& Duathlon

06/01/21 – 06/30/21 

T9 Mermaid Virtual Triathlon & Duathlon (2nd Annual)

Sprint, Olympic, Half, Aquabike, Paddle

T9 Mermaid Streaking Challenge

01/01/21 – 01/31/21

T9 Mermaid Streaking Challenge

31 days of movement

love grand slam

02/01/21 – 02/28/21

love grand slam

Complete 1mile, 5K, 10K, Half Marathon in one month

International women’s day

03/8/21 – 03/15/21

International women’s day

5K, 10K or Half Marathon, 7 days to complete

24 hour virtual relay

5/15/21 - 5/16/21

24 hour virtual relay (2nd annual)

Kickoff the first day of spring

Broken Marathon

04/1/21 – 04/30/21

Broken Marathon

Finish a marathon by completing twenty six “1 mile” runs

T9 mermazing virtual run

05/09/2021 - 05/16/21

T9 mermazing virtual run (2nd annual)

5K, 10K, Half Marathon, Sirena

T9 Mermaid Virtual Triathlon 
& Duathlon

06/01/21 – 06/30/21 

T9 Mermaid Virtual Triathlon & Duathlon (2nd Annual)

Sprint, Olympic, Half, Aquabike, Paddle