If delete an entry and copy the request as cURL, and repeat it, changing only the time entry ID you can remove your own entires in bulk.
Here's a simple bash script to do exactly that.
#!/bin/bash
START=31052
END=$(($START + 356))
ARGS="-H 'Pragma: no-cache' -H 'Origin: https://app.tempo.io' ..."
for i in `seq $START $END`;
do
curl "https://app.tempo.io/rest/tempo-timesheets/4/worklogs/$i" -X DELETE $ARGS &
done