The Nordic Naturals Challenger (formerly Comerica Bank Challenger) is a professional tennis tournament played on outdoor hard courts. It is currently part of the ATP Challenger Tour. It is held annually at the Seascape Sports Club in Aptos, California, United States, since 1988.

Past finals

Singles

Year	Champion	Runner-up	Score
2019	Steve Johnson	Dominik Köpfer	6–4, 7–6(7–4)
2018	Thanasi Kokkinakis	Lloyd Harris	6–2, 6–3
2017	Alexander Bublik	Liam Broady	6–2, 6–3
2016	Daniel Evans	Cameron Norrie	6–3, 6–4
2015	John Millman	Austin Krajicek	7–5, 2–6, 6–3
2014	Marcos Baghdatis	Mikhail Kukushkin	7–6(9–7), 6–4
2013	Bradley Klahn	Daniel Evans	3–6, 7–6(7–5), 6–4
2012	Steve Johnson	Robert Farah	6–3, 6–3
2011	Laurynas Grigelis	Ilija Bozoljac	6–2, 7–6(7–4)
2010	Marinko Matosevic	Donald Young	6–4, 6–2
2009	Chris Guccione	Nick Lindahl	6–3, 6–4
2008	Kevin Kim	Andrea Stoppini	7–5, 6–1
2007	Donald Young	Bobby Reynolds	7–5, 6–0
2006	Alex Kuznetsov	Go Soeda	6–1, 7–6(4)
2005	Andy Murray	Rajeev Ram	6–4, 6–3
2004	Kevin Kim	Frank Dancevic	7–6(2), 6–3
2003	Jeff Salzenstein	Dmitry Tursunov	5–7, 7–5, 6–4
2002	Brian Vahaly	Noam Behr	2–6, 6–3, 6–2
2001	Jeff Salzenstein	Jeff Morrison	7–6(3), 6–4
2000	Bob Bryan	Kevin Kim	6–4, 6–7, 6–4
1999	Michael Hill	Harel Levy	6–7, 6–4, 6–2
1998	Cecil Mamiit	Takao Suzuki	6–7, 6–3, 6–2
1997	Jan-Michael Gambill	Wade McGuire	6–0, 4–6, 6–3
1996	Albert Chang	Brian MacPhie	7–5, 6–3
1995	Daniel Nestor	Chris Woodruff	6–3, 5–7, 6–2
1994	Shuzo Matsuoka	Gianluca Pozzi	7–5, 6–3
1993	Patrick Rafter	Cristiano Caratti	6–2, 6–3
1992	Alex O'Brien	Byron Black	6–4, 2–6, 6–1
1991	Chuck Adams	Bryan Shelton	6–3, 6–4
1990	Henrik Holm	Brian Garrow	1–6, 6–3, 7–6
1989	Mark Kaplan	Robbie Weiss	6–4, 6–4
1988	Brad Pearce	Tim Pawsat	6–3, 6–2

Doubles

Year	Champions	Runners-up	Score
2019	Marcelo Arévalo Miguel Ángel Reyes-Varela	Nathan Pasha Max Schnur	5–7, 6–3, [10–8]
2018	Thanasi Kokkinakis Matt Reid	Jonny O'Mara Joe Salisbury	6–2, 4–6, [10–8]
2017	Jonathan Erlich Neal Skupski	Alex Bolt Jordan Thompson	6–3, 2–6, [10–8]
2016	Nicolaas Scholtz Tucker Vorster	Mackenzie McDonald Ben McLachlan	6–7(5–7), 6–3, [10–8]
2015	Chris Guccione Artem Sitak	Yuki Bhambri Matthew Ebden	6–4, 7–6(7–2)
2014	Ruben Bemelmans Laurynas Grigelis	Purav Raja Sanam Singh	6–3, 4–6, [11–9]
2013	Jonathan Erlich Andy Ram	Chris Guccione Matt Reid	6–3, 6–7(6–8), [10–2]
2012	Rik de Voest John Peers	Chris Guccione Frank Moser	6–7(5–7), 6–1, [10–4]
2011	Carsten Ball Chris Guccione	John Paul Fruttero Raven Klaasen	7–6(7–5), 6–4
2010	Carsten Ball Chris Guccione	Adam Feeney Greg Jones	6–1, 6–3
2009	Carsten Ball Chris Guccione	Sanchai Ratiwatana Sonchat Ratiwatana	6–3, 6–2
2008	Noam Okun Amir Weintraub	Todd Widom Michael Yani	6–2, 6–1
2007	Rajeev Ram Bobby Reynolds	John Paul Fruttero Cecil Mamiit	6–7(5), 6–3, 10–7
2006	Prakash Amritraj Rohan Bopanna	Rajeev Ram Todd Widom	3–6, 6–2, 10–6
2005	Nathan Healey Eric Taino	Harel Levy Noam Okun	7–5, 7–6(4)
2004	Huntley Montgomery Tripp Phillips	Diego Ayala Eric Taino	7–6(3), 7–5
2003	Jan Hernych Uros Vico	Matías Boeker Travis Parrott	6–3, 4–6, 6–1
2002	Amir Hadad Martín Vassallo Argüello	Brandon Coupe Brandon Hawk	6–4, 6–4
2001	Brandon Hawk Robert Kendrick	Kelly Gullett Gavin Sontag	7–5, 7–5
2000	Bob Bryan Mike Bryan	Kevin Kim Luke Smith	6–4, 3–6, 6–4
1999	Michael Hill Scott Humphries	Harel Levy Lior Mor	7–6, 1–6, 7–5
1998	Bob Bryan Mike Bryan	Adam Peterson Chris Tontz	6–4, 6–4
1997	Sébastien Leblanc Jocelyn Robichaud	David Caldwell Adam Peterson	7–6, 6–4
1996	Sébastien Leblanc Jocelyn Robichaud	Neville Godwin Geoff Grant	7–6, 6–7, 7–5
1995	Sébastien Leblanc Brian MacPhie	Bill Barber Ari Nathan	6–3, 6–2
1994	Brian MacPhie Alex O'Brien	Donny Isaak Michael Roberts	6–2, 7–6
1993	Gilad Bloom Christian Saceanu	Cristiano Caratti Grant Doyle	7–5, 6–3
1992	Paul Annacone Alex O'Brien	Miguel Nido Peter Nyborg	6–4, 4–6, 7–5
1991	Nduka Odizor Bryan Shelton	Miguel Nido Fernando Roese	6–4, 6–3
1990	Jeff Brown Scott Melville	Matt Anger Marius Barnard	6–7, 6–4, 6–4
1989	Steve DeVries Ted Scherman	Bryan Shelton Kenny Thorne	6–3, 1–6, 6–2
1988	Jeff Klaparda Peter Palandjian	Ed Nagel Jeff Tarango	6–3, 6–4