According to crash.net, Johann Zarco raced to his fifth win of the year to strengthen his position for the Moto2 World Championship.
Zarco mastered a difficult, drying Silverstone course, beating Alex Rins and Tito Rabat.
Home rider Sam Lowes, who suffered a serious fall during the wet warm-up, struggled from pole position in the unsafe conditions and fell back to ninth place on the first lap.
Rins took the initiative when the Moto2 field grappled with the surface, but it was championship leader Zarco who stormed through on lap five.
The Frenchman enjoyed a phenomenal race pace during the middle section of the race on the drying surface, at times being two seconds faster than the pursuers to get a healthy lead on Rabat in second.
When the track effectively dried out, Rins snaked past Rabat and with five laps left, the role began in Zarco. However, it was not enough to challenge the championship leaders, who claimed victory by more than three seconds ahead of the Spaniard.
Reigning Moto2 champion Rabat struggled with massive tire wear and suffered for a moment in Vale, but held his teammate Alex Marquez back to take the final podium.
With Marquez’s fourth, Jonas Folger rounded out the top 5, while Lowes made the most of his difficult race and finished sixth.
Rainy weather specialist Anthony West achieved his best result of the season with seventh place ahead of Sandro Cortese, Thomas Lüthi and Richard Cardus.