The two-time world champion lined up only 15th for the shorter Saturday contest as a legacy of not setting a time in Q2 owing to the red flag caused by team-mate Lance Stroll shunting.
Starting behind Stroll in 14th, by virtue of not having track position, he was kept out for an extra lap before pitting to swap his starting wet tyres for intermediates in a rain-affected bout.
But on lap three of the reduced 11, Alonso lost control of his AMR23 and spun into the gravel at Pouhon - while chasing the Haas of Nico Hulkenberg - to retire from 16th place.
The Spaniard took full blame for this shunt, saying: “I was following very closely behind Nico at the entry to Pouhon. I lost downforce, touched the white line, and just lost the car.
“Trying to find grip - and guessing the grip levels in each corner - was tricky. It was very slippery, and it was my mistake.”
Aston Martin has confirmed that his car sustained no damage after lighting kissing the barriers.
Hulkenberg joked that Alonso losing the car, having “enjoyed my turbulence”, was a case of “karma [having] hit back out at him”.
Source: Autosport