3–5 SEPTEMBER 2027 · LABE ARENA RAČICE · CZECH REPUBLIC

03—05 / 09 / 2027 RAČICE, CZ

515 KM.3 DAYS.ONE FINISH LINE.

ULTRA CZECH 515 returns after a two-year break. A 10 km swim, 421 km on the bike and an 84 km run. Three days, one compact race venue and a limited field for athletes who already know what long-distance racing demands.

///30 START SLOTS

Petr Vabroušek at the ULTRA CZECH 515 finish in 2020

PETR VABROUŠEK / 202020:56:15

THIS IS
ULTRA.WORLD-RECORD HISTORY

LABE ARÉNA RAČICE10 KM SWIM421 KM BIKE84 KM RUN03—05 SEPTEMBER 2027

01 / RETURN

THE ULTRA IS BACK.

After two years without a start line, ULTRA CZECH 515 returns to Račice. The essence remains unchanged: three days, 515 kilometres and complete responsibility for the way athlete and support crew manage the race.

A new digital home, new energy, the same respect for the distance.

EXPLORE THE COURSE

02 / WHY RAČICE

MADE FOR ULTRA.

SPEED

A flat course with a history of exceptional performances. Petr Vabroušek completed 515 km here in 20:56:15 in 2020 — reported at the time as a new world record.

SAFETY

A fully closed course, 100% free from traffic emissions. Safety across the swim, bike and run is absolute.

ULTRA

The ultimate triathlon distances across the individual disciplines. Fatigue carefully spread across the three days, creating a unique sporting and social experience.

COMPACT LOGISTICS

Everything happens in one place, with no complicated transfers. Support always has a clear overview of the race situation and stays as close to the athlete as possible.

03 / THREE DAYS

THREE DAYS. FOUR STAGES. 515 KILOMETRES.

EXPLORE THE COURSE

Friday 3 September

DAY 1 — 155 KM

10 KM SWIM + 145 KM BIKE

The race begins in the Labe Arena rowing canal. After 10 kilometres in the water, athletes move directly into the first cycling stage around the venue.

10 + 145KM

Saturday 4 September

DAY 2 — 276 KM

276 KM BIKE

The longest day of the race. Sustained work on the bike where pacing, nutrition, discipline and a well-organised support crew matter as much as raw speed.

276KM

Sunday 5 September

DAY 3 — 84 KM

84 KM RUN

Two marathon distances to finish. A flat course around the canal leaves nowhere to hide from pacing mistakes made during the first two days.

84KM

Run course alongside the rowing canal in Račice

LABE ARENA RAČICE / CZECH REPUBLIC

04 / RAČICE

A RACE VENUE BUILT FOR FOCUS.

Labe Arena Račice offers an exceptionally compact setting for an ultra-distance race. Every athlete has a mandatory support crew of 1–4 people with a crew captain. The rowing canal, flat cycling loop and run course around the venue keep athlete and support crew in one clear race environment. Minimal transfers. Maximum focus.

2.35KM LONG ROWING CANAL

EXPLORE THE COURSE

05 / HERITAGE

A COURSE WITH WORLD-RECORD HISTORY.

In 2020, Petr Vabroušek completed ULTRA CZECH 515 in 20:56:15. The performance was reported at the time as a new world record over the Ultraman-distance format. Račice offers conditions that make it an ideal venue for ultra triathlon.

HISTORY AND RESULTS

06 / THE FINISH

THREE DAYS. ONE MOMENT.

VIEW ALL PHOTOS

07 / LIMITED FIELD

SMALL FIELD. BIG RACE.

ULTRA CZECH 515 is not a mass-participation event. The 2027 field is capped at 30 athletes, keeping the race compact, clear and personal for athletes, crews and organisers.

2020Petr Vabroušek20:56:15

A historical performance reported at the time as a new world record over the Ultraman-distance format.

08 / GALLERY

515 KM IN PICTURES.

OPEN THE GALLERY

Water at dawn. Endless bike laps. Night, crew, fatigue and the final kilometres on foot. ULTRA CZECH 515 brings three days, four stages and one compact venue together into one extraordinary race.

RAČICE / 03—05.09.2027

3–5 SEPTEMBER 2027. RAČICE. ARE YOU IN?

Three days. 515 kilometres. Just 30 start slots. If you meet the qualification requirements, your application starts here.