There are fresh calls for an outright ban for rodeos.
A horse was killed at a national final in north Canterbury on Saturday.
Will Appelbe from Save Animals From Exploitation (SAFE) says it is another incident that should not have happened.
"This is the fourth animal that has died this rodeo season, and it's because rodeo causes significant distress to animals."
The Rodeo Cowboys Association says the horse was killed after it ran into a fence at the Mandeville event, and it is putting a report together for the Ministry of Primary Industries.
President Lyal Cocks told Stuff the death put "a dampener on the day".
"We are all animal lovers here. It is a sad event."
Green MP Gareth Hughes has Member's Bill in the ballot to end rodeo. In January he called it "cruel and archaic".
"In the past, dog fighting, bear baiting and cock fighting were all considered fun, community entertainment, but thankfully our animal welfare standards have improved and that's no longer the case," he wrote in a column for The Spinoff.
"It's time to consign rodeo to the history books, where it belongs."
Mr Appelbe says this horse's rodeo death should be the last this country ever sees.
"We want the Government to bring this Bill to the House as a Government-sponsored Bill… and finally ban rodeo cruelty, because this really needs to end…
"Quite frankly it's bullying of animals for the entertainment of the minority."
The rider was reportedly unhurt.
The Rodeo Cowboys Association says it was a tragic accident and is investigating.