Mariela was Miss Maryland Teen USA 2014 - you can check out her Teen profile here - and is only the fifth woman to hold both titles (click for a history of MD Teen USA titleholders competing at MD USA). She is the first since Kasey Staniszewski in 2013, and she and Kasey are the only Teen crossovers to win since 1995! Mariela is only the third former Teen to win this year and the first from 2014. She placed second runner-up in last year's pageant.
Amalia is 17 and from Bethesda - the first Teen from Bethesda since 1984! She was competing for the first time.
Among the top 15 were past runner-up Antonia Gore, 2017 semi-finalist Jordyn Cristaudo, and 2017 Pennsylvania Teen semi-finalist Sarah Pennington. Piper Lewis and Billie Castro were past non-finalists and Lorreen Agandi, Preslie Bennett, Ayuana Bryant, Emma Lutton and Shea Sullivan were all competing for the first time.
The Teen first runner-up was newcomer Aryana Briner. Second runner-up Ava Barnd and third runner-up Jaclyn Davis switched spots from last year when Ava was 3RU and Jaclyn was 2RU (mea culpa - in my contestant commentary I unfortunately overlooked that Ava was a past runner-up). Fourth runner-up was another newcomer Briauna Shriner.
The top 16 included last year's first runner-up Megan Goins, 2018 semi-finalists Isabella Capuao and Savannah Rumsey and newcomers Lynn Clough, Catalina Escalante, Emma Foraci, McKenna Hunt, Karson Marcellino, Adriana Ortiz, Julia Sheridan and Danielle Shook.
See also: Miss Maryland USA & Teen USA state pageant results | Miss Maryland USA & Teen USA titleholder history
1RU: Amber Smith (SF MD TUSA 15, SF 14)
2RU: Margo Huffman (2RU MD TUSA 15)
3RU: Kennedy Taylor (3RU DC TUSA 15, MD's OT 12)
4RU: Christiana DiNardo (SF NY TUSA 16, 3RU 15, 4RU 14)
Billie Castro (NF 15)
Jordyn Cristaudo (SF 17)
Antonia Gore (SF 18, 3RU 17, 3RU PA USA 16, SF 15, NF GA USA 13, SF MD TUSA 09)
Piper Lewis (NF 18, NF 17)
Sarah Pennington (SF PA TUSA 17)
Congeniality: Miranda Posten
Photogenic: Joanna Nagle (4RU VT USA 17, 2RU 16)
1RU: Aryana Briner
2RU: Ava Barnd (3RU 18)
3RU: Jaclyn Davis (2RU 18)
4RU: Briauna Shriner
Isabella Capuano (SF 18, NF 17)
Megan Goins (1RU 18, SF 17, SF 16)
Savannah Rumsey (SF 18)
Congeniality: Ava Barnd
Photogenic: Kyla Wilson