Dartmouth shot 19% in the first half, made only five field goals and trailed 28-14 at halftime.
The Big Green remained behind by double digits until Trevon Ary-Turner hit a layup to bring Dartmouth within 44-35 with 5:15 to go. Dartmouth's James Foye hit a 3-pointer to make it 51-46 with 41 seconds left but Penn made enough free throws to hold on.
Both teams have road games on Friday -- Penn at Columbia and Dartmouth at Brown.
For more AP college basketball coverage: https://apnews.com/Collegebasketball and http://twitter.com/AP-Top25
Elements of this story were generated by Automated Insights, http://www.automatedinsights.com/ap, using data from STATS LLC, https://www.stats.com
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