The real athletes

Ask any professional what wins matches and the answer is horses. The “pony” is polo's beloved misnomer — these are full horses, mostly Thoroughbred types around 15–16 hands — and at the top of the sport, horsepower is at least half the game.

What the job requires

• Sprint speed with instant stops and turns — a chukka is repeated acceleration, not steady galloping;
• Boldness in traffic: accepting ride-offs, swinging mallets and a ball under their feet without flinching;
• “Handiness” — response to leg and seat so the rider's hands stay free for the mallet;
• Recovery: a pony plays one chukka (occasionally split across two) and must come back sound tomorrow.

Breeding and making

• Argentina dominates supply and craft: the Polo Argentino registry blends Thoroughbred speed with Criollo toughness, refined over a century — and top ponies are now cloned, controversially and legally, at the sport's summit;
• Ex-racehorse Thoroughbreds retrain into fine polo careers elsewhere, alongside purpose-bred lines in the US, UK, Australia and New Zealand;
• The making of a pony — from breaking to tournament-ready — takes years of patient schooling; a finished high-goal pony is a six-figure athlete.

The string

Because one horse can't play a match, players maintain a string — from two or three ponies at club level to a dozen-plus in high goal. Managing the string (which pony for which chukka, who's fresh, who suits this ground) is genuine in-game strategy, run by professional grooms whose horsemanship underpins the whole sport.

Welfare

Modern rules protect the athletes who can't consent: equipment standards (leg wraps, tail taping), umpire authority to order a lame pony off, limits on play, and veterinary oversight at tournaments. The culture backs it — a professional's ponies live better than the professional — and retired ponies commonly step down through lower-goal polo into schooling novice players, the gentlest last job in the game.

Tack and protective equipment

A polo pony carries a specialised kit built entirely around safety at speed: a secure polo saddle, a standing martingale to prevent the head from rising into the mallet's path, protective leg bandages or boots against mallet and ball strikes, and the tail bound up so it can never tangle a swinging mallet. The full equipment guide covers rider and horse kit side by side.

Feeding, fitness and veterinary care

A playing string is essentially a stable of equine athletes in season year-round: tailored feeding for sustained anaerobic effort, structured fitness work between tournaments, and routine veterinary attention — soundness checks, dental care, and rapid treatment of the knocks that come with contact sport. It's a full-time professional operation behind every string you see on a Sunday field.

The economics of ownership

Buying, keeping and eventually retiring a string of polo ponies is where the sport's costs genuinely concentrate — far more than mallets or membership fees. Our guide to buying and leasing ponies walks through the practical options, from hiring club horses to owning your own string.