Leyton Orient 2-1 Preston
Struggling Leyton Orient came back from behind to secure their first league win of the season and end Preston's seven-match winning run.
Preston took an early lead when Paul Coutts tapped in Jamie Proctor's cross.
Dean Cox headed home Kevin Lisbie's cross for the equaliser and struck again with a 25-yard effort.
Lee Butcher kept the hosts in front with a magnificent save from Graham Alexander's penalty after Scott Cuthbert had fouled Brian McLean.
Preston's run had been their best in the league since 1959.
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Leyton Orient boss Russell Slade told BBC London 94.9:
"We didn't start too well, and once we got Dean Cox on the ball he was a real thorn in their side and he produced two pieces of quality.
"We're Leyton Orient, we don't do it the easy way, but we are still in a precarious position and need to use today as a platform.
"The fans were magnificent and they can see we don't deserve to be where we are in the table."