Bradley Smith was unable to build on his impressive qualifying performance at Brno as the Tech 3 Yamaha rider crashed out of the race.
Smith, who started from sixth on the grid on row two, was running behind Valentino Rossi
when he fell at turn 9 while holding seventh place.
The MotoGP rookie wasn't immediately aware of the reason for the spill but after analysing the data later it transpired that the British rider had began to accelerate fractions of a second sooner than normal.
“The race ended far too soon and it is not the way we wanted a positive weekend to end,” he said.
“I don't feel I did anything different in that corner and I felt comfortable and the bike felt very good.
“The improvements we made on a full fuel tank made the bike much better in the early part of the race but I got caught out in Turn 9.
“The data showed I accelerated a fraction earlier and those small margins can make all the difference,” added Smith.
“Unfortunately the handlebar was broken so I couldn't get back in the race.
“But in my rookie season this can happen when you are pushing to try and learn and build experience. At least I don't have to wait long for Silverstone.”
Smith was dismayed by the manner in which the weekend ended but he hopes to make amends at his home race at Silverstone this weekend.
“I'm disappointed with today but highly motivated to build on the positive points we gained here,” he said.
“Racing at home is always special but this will be my first MotoGP race at Silverstone and I can't wait.”