Yousuli is a performance lab, a coaching practice, and a community. The brands and facilities below help us bring lab-grade testing, coaching, and member discounts to athletes across Southern California.
We bring real testing days to your facility, route real athletes to your products, and turn race-expo visibility into measurable bookings.
Triathletes, runners, cyclists, swimmers, and para-athletes across greater LA, actively training and willing to spend on what works.
Race expos, on-site testing days, the Yousuli Social Club, the calculator library, and our blog, not just a logo on a website.
QR codes, voucher codes, and UTM tracking on every event so you see exactly what your investment returns.
Community over ego, accessible support for para-athletes, and serious science. We work with brands that share that posture.
The brands shipping behind YSC member discounts and Yousuli Performance Lab events.
The first battery-powered, portable swimming machine. Creates stationary swimming in smaller pools so our coaches can observe technique from multiple angles, run drills, and put adult triathletes through serious volume without a full lap pool. 2.5+ miles per battery charge · 1:20/100 yd top pace.
Co-built free mini-course: Swim foundations → drill-first freestyle course for adult learners, built around the Slipstream swim station.
Member discount available
The official Yousuli Social Club performance trisuit, built with Zoot. One suit, all terrain, road, gravel, MTB, coast, urban, snow, desert. Available in two tiers: P1x (Zoot’s flagship) and Racing (standard race kit). Coordinated through twice-yearly Club batch orders at the YSC member rate. YSC members only.
Members-only · 2 tiers · 2 batch orders / year
Real-time stroke metrics, force, propulsion, stroke rate, that pair with our pool-side technique work. Used in Yousuli swim sessions to make every length measurable. Every handset includes 6 months of free EO membership.
Member discount available
Mandarin learning platform I built on the side, for friends and for the fun of building it. The mountain (山) tells the story: character logic, not memorisation. The site is comprehensive but still in beta, so it’s free for everyone who signs up while the beta runs. After beta, the YSC voucher applies for an extra 3 months of complete access.
3-month complete-access voucher for members
Same idea, French. Built on the side for friends learning French, with the structure I wish existed when I was learning languages myself. Comprehensive but still in beta, so it’s free for everyone who signs up while the beta runs. After beta, the YSC voucher applies for 3 months of complete access.
3-month complete-access voucher for members
The footpod that gives you running power. Yousuli uses Stryd data to set run zones, model race pacing, and track durability. Pairs cleanly with the calculator library and run-economy work in the Performance Lab.
Member discount available
Science-backed endurance fuel: gels, drink mixes, bars, and sodium boosters, dosed at the modern 1:0.8 glucose-to-fructose ratio so the gut absorbs more carb per hour with less GI distress. Used in our race-fueling calculator and in the day-by-day plans we build for coached athletes. Learn more at neversecond.com.
30% off for YSC membersEndurance gear, nutrition, a local gym, a coffee shop, a race series, if you serve our athletes, we should talk.
Become a partnerThree lightweight options, pick what fits, then we tune the details together.
Send a quick note. We’ll reply with a short call or a draft proposal, whichever helps you decide faster.
Tell us a bit about your brand or facility through our contact form, or just send an email. We’ll reply with a short call or a draft proposal, whichever helps you decide faster.
Or text (909) 979-4118.
