Jorge Lorenzo called his qualifying round at Assen on Saturday a ‘disaster’, after the Spaniard struggled to a career-worst 21st place in the wet conditions.
The Ducati rider failed to make the top 10 and missed out on Q2 after his Desmosedici found it hard to maintain grip in the wet.
Lorenzo was second fastest at one point on Saturday before a heavy downpour during final practice saturated the Dutch circuit and Lorenzo could find no grip from the Michelin wet rear tyre.
“Without a doubt, if we look at the results, it was a disaster,” Lorenzo said later
“At the right moment, at the important point, is when I felt worst. It started to rain very heavily in Q1.
“There was no grip, it felt like an ice rink and the rear tyre was very hard. If I could have got to Q2, with less water, it would have gone better.
“With less water I would have been in the top five.”
Only the injured Bradley Smith and Tito Rabat were slower than Lorenzo, who finished more than two seconds off the pace set by pole winner Johann Zarco.
Team-mate and winner of the last two races Andrea Dovizioso also found the going tough, having to use a second bike after a fall in Q2.
He was also left puzzled as to why the usually competitive Ducati did not do well in the rain.
“For some reason, today we weren’t able to find the feeling we normally have with the Desmosedici in wet conditions,” Dovizioso said after qualifying.
“Then in qualifying I made a mistake and crashed, and this obviously conditioned my position.
“The team, however, were great in getting the other bike ready for me, and I was able to do two laps with this and improved my grid position a bit.
“Tomorrow it’ll be important to make the best of the warm-up in order to try and improve the bike set-up, but in any case I think we can do a good race.”