Tiger Woods was speeding about 60 kilometers per hour when he had a one-sided car accident in February.
The Los Angeles police announced this on Wednesday.
The police report states that Woods was traveling 82 to 87 miles per hour (131 to 140 km / h) where 45 miles (72 kilometers) is allowed.
Woods didn't brake until he lost control of the wheel.
His car overturned several times and the American top golfer got off well with serious injuries to his leg.
Investigators assume that Woods accidentally accelerated while trying to brake.
According to data recordings from the car, the accelerator pedal was 99 percent pressed just before the accident.
The car then crashed into a tree at 75 miles per hour (120 km / h).
The police completed the investigation into the cause of the accident at the beginning of this month.
For privacy reasons, the Los Angeles sheriff initially refused to reveal the content.
After consultation with Woods' entourage, he later got permission to do so.
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Police say there is no reason to believe that Woods was under the influence of alcohol or drugs during the early morning accident.
The 45-year-old golfer has hardly any memories of the accident.
After a few weeks in the hospital, he was allowed to return home to Florida.
He sustained multiple fractures in the right leg and his right ankle was shattered.
It is still unclear whether Woods will return to top level.
Known as one of the greatest golfers of all time, Woods had its heyday in the 1990s and early 21st century.
The fifteen-time major winner then fell back a long way due to private problems and injuries and did not play for years.
Woods made his return in early 2018 and made his comeback shine by winning The Masters in April 2019.