World Equestrian Festival • Aachener Soers

CHIO Aachen & The Hauptstadion

The Wimbledon of equestrian sport. 40,000 spectators roaring inside the world's greatest grass stadium, crowning champions of the Rolex Grand Slam and the Mercedes-Benz Nations Cup.

Aachen, North Rhine-Westphalia, Germany 40,000-Seat Hauptstadion Rolex Grand Slam of Show Jumping Major
Since 1898 • Weltfest des Pferdesports

The Mecca of Classical Horse Sport

Organized by the Aachen-Laurensberger Rennverein (ALRV), CHIO Aachen is universally regarded as the premier equestrian tournament on earth. Over 350,000 spectators gather each July at the historic Aachener Soers grounds near the tri-border of Germany, Belgium, and the Netherlands.

The tournament is legendary for its electric atmosphere. Nowhere else does a 40,000-seat amphitheater fall into dead silence as a horse enters the ring, followed by thunderous applause with tens of thousands of white handkerchiefs waved in unison during the traditional farewell ceremony on Sunday afternoon.

Aachener Soers Specifications

Main Stadium (Hauptstadion)
40,000 Spectator Capacity
Dressage Stadium (Deutsche Bank)
6,300 Permanent Seats
Indoor Hall (Albert-Vahle)
1,200 Seats (Vaulting)
Grand Prix Title
Rolex Grand Prix of Aachen
Total Annual Attendance
350,000+ Enthusiasts
Turf Mechanics & German Engineering

The Hauptstadion: Grass Footing Science

The 130m x 220m grass arena floor is subjected to some of the highest dynamic stresses in international sport. Aachen’s grounds management team uses specialized rootzone engineering to ensure footing remains stable, resilient, and non-slip through 10 days of intense jumping.

01. Root Reinforcement

Polymer Root Entanglement

Specialized synthetic fibers mixed directly into the top sand-loam rootzone interlock with living grass roots. This matrix prevents hooves from slicing or tearing sod during tight jump rollbacks.

02. Moisture Regulation

Sub-Base Drainage Cells

A high-flow gravel sub-layer and laser-guided drainage array evacuates torrential European summer rainfall instantly, keeping the grass firm rather than waterlogged.

03. Impact Damping

Ground Reaction Cushioning

Carefully calibrated soil elasticity dampens peak concussive impact on the horse's distal limb joints and navicular bone, reducing musculoskeletal fatigue across multiple rounds.

Stadium Architecture

The Arenas of Aachener Soers

Permanent multi-stadium infrastructure purpose-built for five Olympic and FEI disciplines.

The Hauptstadion

40,000 Seats

The world's largest show jumping stadium. Features Frank Rothenberger's demanding 1.60m courses, the legendary Aachen water ditch, and the Sunday Rolex Grand Prix.

Deutsche Bank Stadium

6,300 Seats

Dedicated entirely to international dressage. Features a covered grandstand and micro-waxed all-weather footing for the CDIO5* Grand Prix Special and Freestyle.

Albert-Vahle-Halle

1,200 Seats

Historic indoor hall hosting the CVIO Vaulting Nations Cup, where gymnasts perform acrobatics atop moving horses to musical choreography.

Answers & Technical Logistics

Frequently Asked Questions: CHIO Aachen

Why is CHIO Aachen considered the "Wimbledon of Equestrian Sport"?

Founded in 1898, CHIO Aachen (Concours Hippique International Officiel) is the oldest and most prestigious annual equestrian competition in the world. Welcoming over 350,000 passionate spectators across 10 days, it is the sole European venue that unites five official disciplines under FEI Nations Cup rules: Show Jumping, Dressage, Eventing, Four-in-Hand Driving, and Vaulting.

What makes the Hauptstadion grass arena footing world-renowned?

The 40,000-seat Hauptstadion features a 130m x 220m grass arena constructed with a sand-dominated rootzone engineered to resist compaction. A specialized geo-fiber root stabilizer network interlocks grass root systems, preventing turf shearing and divot formation even under heavy warmblood studs executing tight turns and explosive 1.60m Olympic takeoffs.

What role does CHIO Aachen play in the Rolex Grand Slam of Show Jumping?

CHIO Aachen hosts the European summer leg of the Rolex Grand Slam of Show Jumping. The Rolex Grand Prix of Aachen, held on the final Sunday in front of 40,000 spectators, is widely considered the ultimate test of show jumping partnership, featuring Frank Rothenberger courses with towering obstacles, the open water jump, and the iconic Turkish Bank.

What facilities are provided for international dressage and driving?

Dressage is contested in the permanent 6,300-seat Deutsche Bank Stadium featuring precision all-weather waxed silica sand footing. Four-in-hand driving marathon obstacles weave across the adjacent Soers fields, while vaulting and evening galas take place in the Albert-Vahle-Halle.