§ About · The Event
Cyclethon is an annual long-distance charity ride, streamed live as Connor cycles across Japan. Each year raises funds for the Immune Deficiency Foundation.
First Ride · 2022
Partner · IDF
Lifetime · $5.0M
Cyclethon began as a way for Connor to do something Ironmouse couldn’t: getting out and cycling across Japan. What started small quickly grew into something much bigger.
Cyclethon is an annual charity livestream event created by CDawgVA, where he cycles long distances across Japan while streaming the journey live on Twitch.
The project began in 2022 to support his friend, VTuber Ironmouse, who lives with Common Variable Immune Deficiency (CVID). Inspired by her experience, all funds raised during Cyclethon are donated to the Immune Deficiency Foundation, supporting people living with primary immunodeficiency diseases.
Since its launch, Cyclethon has grown into one of the most recognised charity streaming events, winning “Best Philanthropic Stream Event” at The Streamer Awards.
The editions · by raise
$316k
$551k
$1.1M
$1.1M
$1.5M
Cyclethon 1
2022
Wakkanai → Hakodate
8 days
Cyclethon 2
2023
Fukuoka → Kitakyushu
9 days
Cyclethon 3
2024
Shimonoseki → Tokyo
14 days
Cyclethon 4
2025
Cape Nosappu → Tokyo
15 days
Cyclethon 5
2026
Cape Oma → Osaka
15 days
Cyclethon 1
2022
$316k
Wakkanai → Hakodate · 8 days
Cyclethon 2
2023
$551k
Fukuoka → Kitakyushu · 9 days
Cyclethon 3
2024
$1.1M
Shimonoseki → Tokyo · 14 days
Cyclethon 4
2025
$1.1M
Cape Nosappu → Tokyo · 15 days
Cyclethon 5
2026
$1.5M
Cape Oma → Osaka · 15 days
Cumulative · by day
Cyclethon 1
Cyclethon 2
Cyclethon 3
Cyclethon 4
Cyclethon 5
The charity
primaryimmune.org
The Immune Deficiency Foundation is a national non-profit for people living with primary immunodeficiencies, genetic conditions that leave the immune system unable to fight infection on its own. Over 250 known conditions exist.
Funds raised go to patient advocacy, diagnostic support, and access-to-treatment programmes, plus research into treatments like SCIG, IVIG, and gene therapy.
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