Recent studies found that the developer’s pull request’s quality is not the only factor that correlates with its rejection. Diversity factors such as social, gender, and geographical location also correlate. This paper assists on diversity research with a qualitative study that analyzes whether there is evidence of bias based on perceptible race in the written comments of non-merged pull requests in GitHub. We examine the written reasons left as comments by GitHub developers explaining the rejection of 556 contributions submitted by four perceptible racial groups: Asian/Pacific Islander (API), Black, Hispanic, and White. Our initial results may indicate questionable behavior when rejecting pull requests as perceptible-API get more rejections with no reason than perceptible-White. Furthermore, we have identified that submitters perceptible as Hispanic and Black have 39% of their pull requests rejected because they are seen as unnecessary which is 10-12 percentage points more frequent than the rest of perceptible races.