Kiah Seymour ripped the lid off her season with authority Saturday, winning one event and scoring in another at the PR Holiday Invitational in Landover.

The Carroll senior opened things up in the 55-meter hurdles. TheAll-Met selection last outdoor season — mostly because of her fantastic work in the 400 and 400 hurdles — was competing for the first time in the shortest hurdling event at a major invitational. The 5-foot-10 Seymour looked about as sure of herself over the barriers as a newborn fawn, but she still muscled her way to the finish line in second place in 8.50 seconds.

Elizabeth Seton’s Taylor Tucker was the winner in 8.43.

Seymour toed the line in the 500 a few hours later. Back in her relative comfort zone, the 17-year-old rocketed from the blocks before winning in 1 minute 15.85 seconds, the second-fastest time in the country this season.

In between, Robinson’s Genamarie McCant gave Seymour all she could handle, throwing in a few surges before finishing a close second in 1:16.19. That time was third fastest in the land.

Seymour used one word to assess her early-season fitness and how she was feeling immediately after her race:

“Pain,” she gasped while standing doubled over in a pair of bright striped socks and orange spikes. “I just wanted to get a feel for the track. I felt strong.”

Almost all of the approximately 1,400 athletes who were huddled inside the Prince George’s Sports & Learning Complex were in the same situation as Seymour. They were excited to feel the rubber surface under their feet, many of them for the first time this season.

Some had some difficulty settling in. Several athletes tripped over the small rail separating the infield from the track as they crossed between them. Bodies banged into each other like stock cars during relay exchanges.

Others, however, showed up in midseason form. Suitland junior Teyvon Jacobs won the boys’ 300 in a meet-record 34.75 after anchoring the Rams’ winning 4x200 relay that crossed in 1:31.02. He was also third in the 55 in 6.56.

The winners were flying high in the pole vault. Langley’s Logan Besougloff won by a full foot after he slung himself a meet-record 14 feet. Felecia Majors won the girls’ event with 11-1, catapulting past the meet record by more than a foot.

The South County junior All-Met also was runner-up in the high jump, third in the triple jump and third in the 500 and anchored the Stallions to a third-place finish in the 4x400 relay.

Also in the field, Chantilly senior Arthur McDuffy set a meet record in the long jump with a personal-best 22-4. South Lakes junior Rashaan Jones blew everybody away by five inches or more in the high jump, snaking over the bar at a meet-record 6-7.

Mountain View senior All-Met Kimberley Ficenec turned in a speedy time to win the girls’ 1,000. The Alabama recruit ran away with it at the end before crossing in 2:56.49, the fastest time in the country.