what fraction of games won?
percentages
0.676
0.606
0.624
0.667
0.672
1/2 of the games
With the limited data given, I don't know how Daniel came to his conclusion. More data is needed.
Please respond with the complete information for the problem, and we will do our best to help you solve it — but not do it for you.
I hope this helps a little more. Thanks for asking.