The PSG Otrokovicka stovka is a 110.7 km ITRA/UTMB-affiliated night ultramarathon starting in Otrokovice, in the Chriby massif of Czech Republic's Zlin Region. The race begins at midnight on Friday night -- the field sets out in darkness through beech forests, headtorches threading past Buchlov castle -- and the course climbs 4,568m D+ (41.3 m/km) across 20 individual ascents before the finish in Otrokovice. At 11% distance-weighted average uphill gradient (MID tier), the Otrokovicka stovka is notably steep for a 110km forest ultra at sub-alpine elevation. Only 24.7% of the course is flat.
The PSG Otrokovicka stovka course is a near-full traverse of the Chriby massif north to south and back, passing Buchlov castle, the Chapel of St. Kliment, a former Celtic oppidum on Modla peak, a ski slope run on Osvetimanská, and lookout towers at Brdo and Salas. Women's inaugural winner Klara Burdova called it virgin nature alternating with historical places with a mysterious touch. The most technically demanding section arrives at km 61.14 -- a 1.8 km ascent at 13.8% average gradient -- followed later by a sharp final-quarter descent at km 87.69 (-12.0% avg). The inaugural 2024 edition saw 150 finishers from 194 starters (23% DNF).
Brno Airport (BRQ) is 53 minutes from the start. Entry costs 1,600 CZK (approximately EUR 0.59/km). Both distances sold out for 2026 in only the third edition, with places potentially opening as unpaid registrations clear. For runners who want a genuine night ultra through rich Central European forest terrain at a fraction of Alpine race prices, the Otrokovicka stovka 110km is a standout.