Two Rulebooks, One Horse: Show Jumping's Blood Rule Divide

In January, show jumping quietly stopped eliminating riders for minor blood. Under the FEI's restructured Article 259, a smear on a horse's flank or a nick at the corner of the mouth caused by tack or the rider no longer ends a round on the spot. It earns a warning instead — one that is published, tracked, and only costly on the second offense within a year. Six months in, the rule has done what it was built to do: it has stopped punishing the smallest infractions as though they were the largest. What it has not done is settle the argument underneath it, which is not really about elimination at all. It is about what "minor" means, and whether the sport's own research agrees with the word.

The Case That Changed the Rule

The rule exists because of a specific afternoon in Paris. At the 2024 Olympic Games, Brazilian rider Pedro Veniss and his horse Nimrod jumped clear in the team competition, and were eliminated anyway, after a steward's white glove came away with a smear of blood from the horse's flank. Brazil withdrew from the team event. Rodrigo Pessoa, a member of the FEI's Athletes' and Jumping Committees, later called the consequence disproportionate to the offense: "Being eliminated from the Olympic Games, it was four years of work, of dedication, of investment that went down the drain," he said. "The consequence was way too big compared to the infraction, it was not equitable."

It is a hard case to argue against, and NHE will not try. A four-year Olympic cycle should not turn on a mark the size of a fingerprint, particularly when the underlying infraction cannot be told apart, by eye, from an ordinary spur mark or a scrape against a standard. The old rule treated every visible trace of blood as equivalent, which meant it treated the worst cases and the most incidental ones identically. That was never a defensible position, and the sport was right to change it.

What the Riders Actually Asked For

What makes this a genuinely contested rule, rather than a simple rollback, is that the athletes pushing for change were explicit that they were not asking for less accountability. François Mathy, president of the International Jumping Riders Club, framed the proposal carefully: "We are not looking to weaken the rule. We want to define it more clearly, to better align the sanction with the seriousness of the case." IJRC director Eleonora Ottaviani went further, describing the version the FEI ultimately adopted, with its published warnings, fines, and one-month suspensions for repeat offenders, as "even stronger than the previous rule" — a claim that is at least partly true. A rider who draws blood twice in a year now faces a suspension the old rule never imposed for a single incident of any severity. The new system is not lenient. It is graduated, and it is public in a way the old one was not.

What "Minor" Looks Like Under a Microscope

The word doing the most work in this debate is "minor," and it is worth asking what the veterinary literature actually says about it. A 2019 study out of the University of Helsinki examined 208 event horses, more than half of them warmbloods, for lesions in the bit area immediately after a cross-country test. Fifty-two percent showed acute lesions — twenty-two percent mild, twenty-six percent moderate, four percent severe — with the inner corner of the lip the most common site. That is not a rare event turning up in a handful of unlucky horses. It is a routine physiological finding in more than half a sample of competing sport horses, in a discipline where tack and rein contact are, if anything, less constant than in the jumper ring.

A separate 2025 study, published in the journal Animals by researchers Frauke Musial and Thomas Weiss, took a different approach: it compared bit pressures and rein tensions reported across the equestrian scientific literature to established human pressure-pain thresholds — the point at which a given force applied to human facial tissue registers as painful. The threshold for the human face sits at roughly 232.4 kilopascals. The bit pressures documented in the literature the authors reviewed run from figures low enough to be pain-free at the gentle end to figures many multiples higher at the reported maximum. The authors' conclusion was measured rather than alarmist: average-to-maximum pressures of the kind already documented in competition horses would, by the human analogue, register as strong pain. Neither study was designed with the blood rule in mind. Read together, they make the case that a "minor" lesion at the corner of a horse's mouth is not obviously minor to the tissue involved, whatever it looks like to a steward at a distance.

The Objection That Doesn't Go Away

This is the ground World Horse Welfare and the International Society for Equitation Science have been standing on since the rule was first proposed, and it deserves to be stated plainly rather than summarized past. World Horse Welfare has called the change, on balance, "a step backwards for horse welfare," warning that treating rider- or tack-induced blood as a warning rather than an elimination "introduces a real risk of undermining a culture of empathy and respect for the horse." Dr. Kate Fenner, honorary president of ISES, made the physiological argument directly: "The proposal to wipe away blood from horses that have 'bitten their tongue' and allow the horse to continue competing disregards the reality that damage to tissues causes pain." Neither organization has argued that Pessoa's underlying complaint about the Veniss case was wrong. Both have argued that the fix the FEI chose treats a measurement problem — a steward's inability to distinguish severity at a glance — as though it were a proportionality problem, and addresses the second by relaxing the first.

Which Standard Deserves the Benefit of the Doubt

Set beside the research, USEF's rule is the more defensible of the two, not because American officials did more homework, but because its logic requires less faith in a steward's eye. It does not ask a Ground Jury to size up a lesion mid-competition and decide whether this particular mark is the fingerprint-sized incident Pessoa described or something worse; it removes that judgment call by eliminating for any rider- or tack-induced blood, and reserves discretion for the one case that genuinely is incidental, a horse catching its own tongue or lip, where no equipment or rider action is implicated at all. That is a narrower carve-out than the FEI's, and it is narrower in exactly the place the Helsinki and pressure-threshold research suggests it should be.

None of that makes the FEI's underlying instinct wrong. A federation that watched an Olympic cycle end over a smear the size of a fingerprint had a real problem to solve, and a system of published warnings and escalating suspensions is a legitimate way to hold riders accountable without treating every case as identical. But the research says the injuries in question are common, tissue-level, and genuinely painful in a way "minor" undersells. A better fix would have kept the elimination trigger where USEF placed it, and built the proportionality Pessoa and Mathy were asking for into what happens after the round ends — a review process, a graduated appeal — rather than into the moment a horse is still standing in the ring bleeding. For a discipline whose international governing body and its largest national federation now disagree on where that line sits, riders showing on both sides of the Atlantic this season should know which rule they are jumping under before they enter the ring.