It's official: Michael Phelps' record-breaking Olympic run will continue in Rio. The swimmer, who turns 31 tomorrow, secured a berth in his fifth Olympic Games on June 29 by winning the men's 200 meter butterfly final at the 2016 Olympic Swimming Trials in Omaha, Nebraska. He is the first American male swimmer to make five Olympic teams.

Phelps, Shields go one-two

Phelps bested second-place finisher Tom Shields 1:54.84 to 1:55.8 to formally punch his ticket to the Rio Olympic Games in August. The Baltimore native, who holds the distinction of being the most decorated Olympian of all time with a total of 22 medals (18 of which are gold), emerged from retirement in 2014 with his sights set on making the Rio-bound team.

Following the race, Phelps said that though he wasn't "as fast as I'd like to have been," he was pleased that baby son Boomer had been awake for the race and that he hoped to "have some fun" now that he's made the team.

More June 29 results from the pool

In addition to the men's 200 meter fly, two other event finals were contested on day four of the Olympic Trials. The women's 200 meter freestyle final featured a packed field that included19-year old World Record holder Katie Ledecky, who already earned a Rio Games berth in the 400 meter free; five-time Olympic medalist Missy Franklin; six-time Olympic medalist Allison Schmitt; and Leah Smith, who placed second behind Ledecky in the 400 meter free.

Ledecky won handily, and Franklin --who'd hoped to just make a relay team-- came in a surprise second to score her first individual Rio berth.

The last final decided was the women's 200 meter IM, which saw 400 meter IM winner Maya DiRado going for her second individual berth in Rio. After a fierce battle, DiRado came away with the win while Melanie Margalis out-touched 2012 Olympic event bronze medalist Caitlin Leverenz by five one-hundredths of a second to claim the second berth.

The 2016 US Olympic Swimming Trials will continue June 30 with more event finals. Check out all of the action via NBC live stream beginning at 8 PM Eastern.

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