West York's Trinity Thomas finishes 8th at national championships

West York's Trinity Thomas, who trained at Prestige in Lancaster, couldn't duplicate her first night of competition Sunday at the U.S. Gymnastics Championships in Boston.

She fell three spots in the standings to finish in eighth with a 109.60 aggregate score.

As expected, Day 2 of the championships belonged to Simone Biles.

The four-time Rio Olympics gold medalist easily clinched the U.S. all-around title with a cumulative score of 119.85 through two rotations on each apparatus. She finished 6.55 ahead of Morgan Hurd, the largest margin of victory for a women's national championship.

Biles wasn't as impressed with her performance as the judges.

"I'd give it a B-plus," she told Andrea Mitchell after the competition. "There are still plenty of things I can work on."

Riley McCusker finished third with 112.75. The top three are guaranteed spots on the team that travels to the world championships.

Thomas finished fourth in the championships last year, when Biles didn't compete, with an aggregate 111.35.

The University of Florida freshman still has a shot at making the team that will compete at the world championships. The final two spots will be determined at a training camp next month. She will also represent the U.S. at the Pan-Am Games next month in Peru, it was announced on Monday.

Thomas finished fourth in uneven bars with 27.90; sixth on the beam (27.00) and floor exercise (26.800)

Thomas opened the second night of competition on the vault. She ended her Yurchenko 1-1/2 with a small hop forward that led to a 13.90 score, just off Friday's score of 14.00.

Thomas' vault score kept her in the top five after the first rotation, but she inched closer to fourth place. The only change in the top five came as Grace McCullum and Riley McCusker swapped for third place, thanks to McCullum's 14.60 on the vault.

The NBC audience had their only look at Thomas for her uneven parallel bar routine. Thomas finished well off of her Friday routine of 14.40, where she had the fourth-best score, with a 13.50 on Sunday.

Shilese Jones' 14.35 in the vault moved her ahead of Thomas after the second rotation, fifth in the standings at 83.05 to Thomas' 82.90 with two events remaining.

Thomas lost a little more ground in the third rotation, when she finished with a 13.25 on the balance beam.

Jones scored a 13.60 on the bars in the same rotation to stay in fifth place and Kara Eaker used a 13.55 in the floor exercise to slip into sixth and move Thomas into seventh.

Thomas closed out the competition with a 13.45 in the floor exercise. Even though she closed the gap on Jones and Eaker, Jade Carey slipped into sixth place with a 14.15 on the vault to move Thomas down another spot.

Here is how the top 8 played out: 1. Simone Biles, 119.85; 2. Morgan Hurd, 113.30; 3. Riley McCusker, 112.75; 4. Grace McCallum, 111.65; 5. Shilese Jones, 109.85; 6. Jade Carey, 109.70; 7. Kara eaker, 109.65; 8. Trinity Thomas, 109.60.

Read more about Trinity Thomas: 

• York County gymnast Trinity Thomas among contenders for upcoming U.S. championships
• USA national team gymnast, West York diver Trinity Thomas makes college decision
• Trinity Thomas pulls off rare gymnastics pass
• 'No weakness': USA gymnast Trinity Thomas, from York County, trains hard, works hard
• U.S. national gymnastics: Who is Trinity Thomas?