Disorder broke out across the country following the fatal stabbing of Bebe King, six, Elsie Dot Stancombe, seven, and Alice da Silva Aguiar, nine, at a Taylor Swift-themed dance and yoga event in Southport in July 2024. Eight further children and two adults were also injured in the attack.
Monday's report identified 246 events which took place in its aftermath - 88 of which were deemed significant - some turning violent.
As of 22 January this year, 1,804 arrests had been made and 1,072 charges issued, the report said.
Acknowledging this was the worst disorder the country had seen since 2011, MPs said police forces should have "better anticipated the risk of disorder in general" following an initial instance of disorder in Southport.
Officers across the country worked "tirelessly", the report said, but forces being unable to act proactively left them exposed.
The "bravery and professionalism" of the officers was commended after 302 were injured and between 54 and 69 taken to hospital.
Staffordshire Police Chief Constable Chris Noble told the committee: "This will change some officers for the rest of their lives and they will live with the impacts of it for the rest of their lives."
The report found no evidence to support claims of "two-tier policing", finding instead that such commentary "undermined" the efforts of the officers.
"Those participating in disorder were not policed more strongly because of their supposed political views but because they were throwing missiles, assaulting police officers and committing arson," it said.
Later on the day of the Southport attack, police said they had arrested a 17-year-old male. He was named as Axel Rudakubana three days later, when restrictions preventing him from being identified due to his age were lifted.
Misinformation regarding the identity of the suspect spread quickly online following the attack. Forces and the Home Office said it was a "significant factor" in the spread of disorder.
The reports outlines the "difficult position" Merseyside Police faced around publishing details around the suspect but added the lack of information created a "vacuum".