Using a self-paced reading task, the present study explores how Dutch-English L2 speakers parse English "wh"-subject-extractions and "wh"-object-extractions. Results suggest that English native speakers and highly-proficient Dutch-English L2 speakers do not always exhibit measurable signs of on-line reanalysis when reading subject-versus object-extractions in English. However, less proficient Dutch-English L2 speakers exhibit greater processing costs on subject-extractions relative to object-extractions, similar to previously reported findings (e.g., Dussias and Pinar, "Second Language Research" 26: 443-472, 2010; Juffs, "Second Language Research" 21: 121-151, 2005; Juffs and Harrington, "Studies in Second Language Acquisition" 17: 482-516, 1995). These findings are discussed in light of relevant research surrounding on-line processing among L2 speakers and their ability to adopt native-like processing patterns in the L2.