import re
p_confrontations = 'Totally, 7 game(s) over, 8 game(s) under 7 game(s) half-game over, 8'
over_under = re.findall(r'Totally, (\d+) game\(s\) over, (\d+)', p_confrontations)
over_under_ratio = int(over_under[0][0])/(int(over_under[0][0])+int(over_under[0][1]))
over_under2 = re.findall(r'(\d+) game\(s\) half-game over, (\d+)', p_confrontations)
over_under2_ratio = int(over_under2[0][0])/(int(over_under2[0][0])+int(over_under2[0][1]))
head_to_heads = dict()
head_to_heads['over/under 0.75'] = over_under_ratio
head_to_heads['over/under 2.5'] = over_under2_ratio
print(head_to_heads)