Description:
dark horse
/ˈdärk ˈˌhôrs/
noun
1. a candidate or competitor about whom little is known but who unexpectedly wins or succeeds.
"a dark-horse candidate"
Carol Willis BOTTLENECK
Douglas Gwilym CORNPLANTER O'BAIL
Gary Every INTO THE POT
Ron J. Cruz PECK
Wayne Kyle Spitzer PRETTY ON THE INSIDE
Diana Olney WHERE FASNET MET SPACE NET
Mary Jo Rabe SORRY, WRONG ARTIFACT
Mark Mellon THE BURDEN OF DAMASCUS
James B. Pepe THE TROUBLE WITH AI-Nine
Chad Gayle