Complex sentence: At the 2016 WSOP, Mercier won the $10,000 2-7 No Limit Draw Lowball Championship, earning $273,335 and 2016 WSOP, Mercier won the $10,000 H.O.R.S.E Championship, earning $422,874.
Split into simpler sentences: At the 2016 WSOP, Mercier won the $10,000 2-7 No Limit Draw Lowball Championship, earning $273,335. He also won the $10,000 H.O.R.S.E Championship, earning $422,874.