On Friday at Spring Series in Fairbanks, Alaska, clubs went head to head in the 4 x 5-kilometer co-ed mixed relay  at the Birch Hill Recreation Area. Below is a photo gallery, courtesy of Lance Parrish and Max Kaufman. U.S. Distance Nationals and the SuperTour season concludes Sunday with the 30/50 k freestyle mass starts.
The start of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska, with Sophie Caldwell (SMS), Kikkan Randall (APU), Rosie Brennan (APU), Jessica Yeaton(APU), Annie Pokorny (SVSEF), and Kaitlynn Miller (CGRP) at the front. (Photo: Max Kaufman)
Kikkan Randall (APU) leads Sophie Caldwell (SMS Elite Team) during the first leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Max Kaufman)
Rosie Brennan (APU) during the first leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Max Kaufman)
Right to left: Jessica Yeaton (APU) and Becca Rorabaugh during the first leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Max Kaufman)
Renae Anderson (Loppet Nordic Racing) skiing the first leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Eric Packer (APU) during the second leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Max Kaufman)
Sadie Bjornsen (APU) leads Jessie Diggins (SMS Elite Team) during the third leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. SMS went on to win by 10.3 seconds over APU. (Photo: Max Kaufman)
Left to right: Jessie Diggins (SMS Elite Team) gains on Sadie Bjornsen (APU) during the third leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Right to left: Jessie Diggins (SMS Elite Team) after passing Sadie Bjornsen (APU) during the third leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)(Photo: Lance Parrish, Fairbanks)
Chelsea Holmes (APU) during the third leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Max Kaufman)
Chelsea Holmes (APU) skiing the third leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Liz Stephen racing the third leg for the APU/Sugar Bowl/Burke team during the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Liz Stephen racing the third leg for the APU/Sugar Bowl/Burke team during the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Liz Stephen racing the third leg for the APU/Sugar Bowl/Burke team during the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Liz Stephen racing the third leg for the APU/Sugar Bowl/Burke team during the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Liz Stephen racing the third leg for the APU/Sugar Bowl/Burke team during the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Caitlin Patterson (Craftsbury Green Racing Project) racing the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)(Photo: Lance Parrish, Fairbanks)
Rosie Frankowski (APU) racing the third leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Left to right: Caitlin Gregg (Loppet Nordic Racing) leads Hailey Swirbul (UAA) during the thrid leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Caitlin Gregg (Loppet Nordic Racing) skiing the third leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Hailey Swirbul (UAA) racing the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Simi Hamilton (SMS Elite Team) during the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Simi Hamilton (SMS Elite Team) during the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Simi Hamilton (SMS Elite Team) during the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Simi Hamilton (SMS Elite Team) skiing the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Simi Hamilton (SMS Elite Team) during the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Max Kaufman)
Simi Hamilton (SMS Elite Team) during the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Max Kaufman)
Simi Hamilton (SMS Elite Team) after the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Scott Patterson (APU) during the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Scott Patterson (APU) skiing the anchor leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Scott Patterson (APU) during the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Scott Patterson (APU) during the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Scott Patterson (APU) during the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Scott Patterson (APU) during the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Scott Patterson (APU) during the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Max Kaufman)
David Norris (APU) during the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Max Kaufman)
David Norris (APU) during the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Max Kaufman)
Logan Hanneman (APU) during the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Max Kaufman)
Logan Hanneman (APU) skiing the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
Left to right: Craftsbury’s Ollie Burruss and Sun Valley’s Cole Morgan during the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Max Kaufman)
Craftsbury’s Ollie Burruss racing the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska.(Photo: Lance Parrish, Fairbanks)
Brian Gregg (Loppet Nordic Racing) during the anchor leg of the mixed relay on Friday at U.S. Distance Nationals in Fairbanks, Alaska. (Photo: Max Kaufman)
Max LaChance (Bridger Ski Foundation) during the fourth leg of the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Max Kaufman)
David Norris (APU) after the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
SMS Elite Team members (from left to right) Jessie Diggins, Simi Hamilton, Ben Saxton, and Sophie Caldwell after winning the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Lance Parrish, Fairbanks)
APU’s first team (front to back, left to right) Sadie Bjornsen, Kikkan Randall, Erik Bjornsen and Scott Patterson of Alaska Pacific University after placing second in the mixed relay at U.S. Distance Nationals on Friday in Fairbanks, Alaska. (Photo: Max Kaufman)(Photo: Max Kaufman)