Lengkepan kalimah di handap ieu: Hernández umpired di Seri Dunya di 2002 jeung 2005, kitu ogé di All-Star Game di 1999, 2009, jeung 2017. Manéhna geus jadi wasit dina tujuh Liga Championship Series (2000, 2001, 2003,
2004, 2007, 2010, 2016), sarta dina sabelas Liga Divisi Series (1997, 1998, 2002, 2005, 2009, 2011, 2012, 2015, 2017, 2018, 2020). Hernández ogé digawé Game 7 tina 2008 ALCS salaku tatu ngeusian-di keur Derryl Cousins. Pikeun satengah kadua usum bisbol 2011, Hernández dipindahkeun ti kru umpiring Joe West ka kru Gerry Davis.