Panicked bake today

100g starter 40g sugar 350g water 500g bread flour 8g salt

I only did one set of stretch and fold. BF for 9 hours! (Yeah, woke up 2:30am to shape. Put in a tin bread pan coated in butter. Cover. CF for 8 hours. Preheat oven at 450 Spray water and cover with another tin pan. Bake for 30 mins then uncover for 15mins.