Herring attended Utica College, where he competed at the NCAA Division III level with the Pioneers for four seasons.
On December 12, 2005, he was named Empire 8 (E8) Rookie of the Week, after averaging 13.7 points, 4.7 assists, and 3.0 rebounds and helping his team win three consecutive games.
[3] Following college, Herring signed with the Hudson Valley Kingz of the Atlantic Coast Professional Basketball League (ACPBL).
His performance drew the attention of Ian McCarthy, general manager of the Saint John Mill Rats of the National Basketball League of Canada (NBL).
[7] McCarthy said, "Doug is an undiscovered talent who has the rare combination of being a devastating scorer but he also makes the right basketball plays.
[12] Head coach Rob Spon commented, "Doug is an excellent two-way player in this league with great size for a guard.
"[12] On December 2, 2016, Herring signed with Defensor Sporting of the Liga Uruguaya de Basketball (LUB), the top league in Uruguay.