Mansfield boss Paul Cox believes the scoreline did not tell the whole story after his side lost 3-0 to Oxford.
The Stags had been the better side until David Connolly's breakthrough, but they could not find a way past goalkeeper Ryan Clarke.
The U's added two second-half goals to leave Cox to stew over a string of missed chances.
Cox said: "I'm gobsmacked at the amount of chances we had throughout the game, someone has told me it was 14 on goal.
"That's the difference. You look at the quality of the four they had - Kitson, Constable, Connolly and Smalley. Oxford are geared for promotion, they've got that know-how in the team.
"I've said to my players, it's a massive learning curve for us. They had only five or six efforts on goal and they put three of them away.
"I'm disappointed with the first goal though, it was a sloppy goal.
"No one can do anything about the second one, it's a wonder goal, and the third came when we were pushing forward.
"We are creating a lot of chances, they just need to be put away.
"The scoreline says 3-0 and on paper it looks like a tonking, but it's frustrating because for much of the game we were the better team."