Lot’s of fun and fast swimming here on the first full day of the 2015 USA Swimming Pro Swim Series in Mesa, Arizona. There’s no doubt that Michael Phelps’ return has sparked a lot of interest here in the desert, but there was also a lot of strong swims across the board – a good sign for the upcoming summer season. Our chief swim photographer Mike Lewis is on hand helping us bring in some of the images the weekend. Here’s the big day 2 photo vault.

Michael Phelps off the blocks in his first race of 2015 (photo: Mike Lewis, Ola Vista Photography)

Katinka Hosszu (photo: Mike Lewis, Ola Vista Photography)

Katie Ledecky ready for the prelims of the 200 free (photo: Mike Lewis, Ola Vista Photography)

Katie Hoff (photo: Mike Lewis, Ola Vista Photography)

Arianna Vanderpool-Wallace in the prelims of the 100 fly (photo: Mike Lewis, Ola Vista Photography)

Kelsi Worrell in the prelims of the 100 fly (photo: Mike Lewis, Ola Vista Photography)

Locate off the blocks (photo: Mike Lewis, Ola Vista Photography)

Tom Shields (photo: Mike Lewis, Ola Vista Photography)

Debbie Phelps on hand for the racing (photo: Mike Lewis, Ola Vista Photography)

Nick Thoman (photo: Mike Lewis, Ola Vista Photography)

Claire Donahue (photo: Mike Lewis, Ola Vista Photography)

Katie Ledecky before the finals of the 200 free (photo: Mike Lewis, Ola Vista Photography)

Katie Meili following her win in the 100 breaststroke (photo: Mike Lewis, Ola Vista Photography)

Phelps in the finals – took the win in the 100 fly (photo: Mike Lewis, Ola Vista Photography)

keeping it fun with Michael Phelps (photo: Mike Lewis, Ola Vista Photography)

finals time – Michael Phelps (photo: Mike Lewis, Ola Vista Photography)

Eugene Godsoe (photo: Mike Lewis, Ola Vista Photography)

Felicia Lee (photo: Mike Lewis, Ola Vista Photography)

Nicole Johnson on hand to follow the swims (photo: Mike Lewis, Ola Vista Photography)

Ryan Lochte (photo: Mike Lewis, Ola Vista Photography)

Allison Schmitt (photo: Mike Lewis, Ola Vista Photography)

Katie Ledecky (photo: Mike Lewis, Ola Vista Photography)

Michael Phelps (photo: Mike Lewis, Ola Vista Photography)
Love your incredible shots Mike – always so clear & it shows how beautiful swimming is .
Thanks @ERVINFORTHEWIN
Mike Lewis, Your potos are dazzlingly good! How do you capture moments like this when I can’t even get my autofocus to work correctly?!
Great question at the Phelps Press Conference too! 🙂
Thanks DANJOHNROB