With a running clock of 20 minutes, row 1k for time. Then find a max snatch in the remaining time. Warm up prior to starting and have weights out that you think you will need. You may power snatch or full snatch. At exactly 20:00, row 500m for time. You will have three scores: 1k row time, snatch weight, and 500m row time.

In 20 minutes:
row 1k
find 1RM snatch
at 20:00, row 500m