Complete as much as possible in 15 minutes of:
Row 500 meters
Max set push-ups

Post rounds completed to comments.

Scaling:
Experienced athletes should push the row on today’s workout and work for virtuosity on the push-ups. If you do not yet have 10 consecutive push-ups, consider modifications which challenge your current abilities and allow for 10+ reps.

Beginner Option:
Complete as many reps as possible in 15 minutes of:
Row 500 meters
Max-set assisted push-ups