USA Swimming has announced revisions to its 2023 domestic events calendar.
The Phillips 66 National Championships will now take place June 27 through July 1 in Indianapolis, Indiana. Later in the month, the TYR Pro Championships will take place July 26–29 in Irvine, California, followed by the Speedo Junior National Championships July 31 through August 4, also in Irvine. Time standards for the TYR Pro Championships will be the same as those for the Toyota U.S. Open.
The Phillips 66 National Championships will also serve as the selection meet for the 2023 FINA Swimming World Championships, the 2023 FINA World Junior Championships and the 2023 Pan American Games. The updated 2023 calendar is below:
| Date | Competition | Location |
| January 11–14 | TYR Pro Swim Series | Knoxville, Tennessee |
| March 1–4 | TYR Pro Swim Series | Ft. Lauderdale, Florida |
| April 12–15 | TYR Pro Swim Series | Westmont, Illinois |
| April 21–23 | Open Water Nationals | Sarasota, Florida |
| May 17–20 | TYR Pro Swim Series | Mission Viejo, California |
| June 27–July 1 | Phillips 66 National Championships | Indianapolis, Indiana |
| July 26–29 | TYR Pro Championships | Irvine, California |
| July 31–August 4 | Speedo Junior National Championships | Irvine, California |
| November 29–December 2 | Toyota U.S. Open | TBD |
| December 6–9 | Speedo Winter Junior Championships (East) | TBD |
| December 6–9 | Speedo Winter Junior Championships (West) | TBD |
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