Noon German artillery opened a bombardment on the whole front between the Canal and Lens, increasing in intensity at 3.00pm. At around 4.00pm, their infantry attacked, between the Double Crassier and the Chalk Pit. On the Allied right, the shelling failed to sufficiently damage French wire, and the attack was halted with heavy loss. At the same hour, enemy bombers attacked from the Quarries and Fosse 8 against the forward British positions in Quarry Trench and Big Willie.

On the left of the Loos attack, the attack fell against the 2/Royal Munster Fusiliers, 1/Gloucesters and 1/9th King's of 1st Division, between the Loos-Puits 14 bis track, and North of the Chalk Pit. Despite heavy shellfire casualties among the defenders, British machine-guns destroyed the attack within 40 yards of the front line. On the Hohenzollern Redoubt front, the 2/Coldstream Guards repelled all attacks, as they were by now armed with many Mills bombs. The 3/Grebnadier Guards were pushed back some way, but eventually formed a block and then counterattacked (supported by two companies of the 1/Scots Guards and the bombers of the Irish Guards) recovered the lost trenches and caused heavy loss to the enemy.

6.15pm 37th Brigade of 12th Division, led by 6/Royal West Kents, attacked against Gun Trench near Hulluch, but after gaining a footing in the trench had to retire due to lack of grenades.

3,170 gas cylinders were installed in the forward positions facing the Hohenzollern Redoubt and Fosse 8 on each night of this period (although only 1,100 of them would actually be discharged on 13th October, as it turned out). On the night of 10th October, the 2/Grenadier Guards captured an enemy position called The Loop (a portion of communication trench near Big Willie from which they had been able to shoot down the Guards trenches), after heavy hand-to-hand fighting. An enemy counterattack the next day was beaten off, as was another on 12th October. Shell- and mortar fire from the Germans continued so heavy that the relief of the battalion by the 7/Suffolks of 12th Division and 1/5th South Staffords of 46th Division was delayed until 6.45pm.

French Tenth Army attacked at Vimy Ridge on 11th October, together with a local action to recover some trenches at the Double Crassier that had been lost on 8th October. The main attack failed with heavy losses (2,200 casualties) while the Loos attack was cut down before it reached the German wire. Tenth Army made no further attack in the area, due to dwindling ammunition supplies: they formally closed down the Artois offensive on 15th October.

On 12th October, Sir John French wrote to Haig that the French Tenth Army was going to stand fast, unable to get beyond Vimy Ridge. First Army would not, in the circumstances, be required to achieve the distant objectives given on 18th September. The Army would however continue it's efforts to secure such localities as would enable it to maintain it's position and be ready to renew the offensive when ordered.