Engineers are spending a lot of time with teamwork and collaboration. Hence, teamwork skills are increasingly valued by many companies, and many college engineering courses require their students to do group projects. Peer evaluation is a way to assess the quality of teamwork, but this assessment might be influenced by many factors. For instance, since we have less female engineering students than male students, many teams might be presented without female students. This paper examines whether there is difference in peer rating results between teams that have female students and teams that do not. This study would select the data from a first-year engineering course. As a result of this study, teams with women have somewhat more improvement in the quality of peer evaluation, but the difference was not substantial.