sperm racing.

so, sperm racing.

we started this for one reason.male fertility is declining, and almost no one is tracking it.

male fertility is declining.

sperm counts and quality across much of the world have been falling for decades. it has happened quietly, steadily, and most men will go their whole lives without a single conversation about it.

sperm motility is one of the clearest signals of male reproductive health. how fast sperm moves is measurable and trackable, and like most markers of fitness, it responds to how you live: sleep, heat, training, alcohol, weight, stress.

it is one of the few health markers a man can actually watch change. almost nobody does.

we're turning health into a sport.

men will train for years for a sport. they will track a lift, a split, a max. ask the same men about their fertility and most have never measured it once. we think that is the wrong way round.

competition is the format that gets men to pay attention to their own health. so that is the format we use.

we're building the first-ever racetrack for sperm.

two competitors. two samples. one microscopic finish line.

how the race works:

• we've designed a microscopic racetrack that mimics the reproductive system—chemical signals, fluid dynamics, synchronized starts.
• high-resolution cameras track every microscopic move. it's all live-streamed, complete with stats, leaderboards, and instant replays.
• the winner is the sperm that crosses the finish line first, verified by imaging and reviewed before any result is called.

we run it like a sport because that is what makes people watch. weigh-ins, a start line, commentary, a result. the format is familiar on purpose.

what we publish, and what we don't.

a race publishes finish order and lane. that is all. we do not publish or return any clinical measurement, and nothing here is a diagnosis or medical advice. if you want your fertility assessed, see a physician. competitors are 18+.

the bigger picture:

this was never really about racing sperm. it is about making male fertility something men will look at, talk about, and act on before it becomes urgent.

a topic most men avoid, made visible and worth paying attention to.

because health is a race. and everyone deserves a shot at the starting line.

we have put together a team of researchers and operators to build this properly, and we are working with clinicians and labs on how a race is run and how a sample is handled.

every race adds to what we know about what makes sperm fast. our goal is simple: race enough people that it becomes public knowledge.

let's race.

- the sperm racing team