The first #1 seed has been eliminated from competition in the National Park Playoff, while the other three will comprise a plurality of the Elite Eight. In the East, #4 Acadia knocked off #1 Great Smoky Mountains, 16-11, to reach the last round before the Final Four. After surviving a huge scare last round, #1 Yellowstone rolled past #5 Badlands 13-4. In the Southwest, #1 Grand Canyon amassed the biggest score, beating #5 Arches 20-9. And in the Pacific, #5 Mount Rainier jumped out to an early lead before giving up a long unanswered run to #1 Yosemite, eventually falling 14-5. These four parks will face today’s winners for the right to cut down the nets in the Final Four.

Predictive brackets had their best day since the last time one-seeds were in action, notching a 68% accuracy rate with three perfect 4/4s (and, alas, one 0/4). The four-seed was the least predictable of the bunch, with six picks going instead for top-seeded Great Smoky Mountains, three more for the eliminated Shenandoah, and two for eliminated Biscayne. But on the other end, 16/19 put Grand Canyon through to the Elite Eight, with just one selection for Arches and one each for the knocked-out Bryce Canyon and Great Sand Dunes. In the Pacific, two predictors predicted Mount Rainier to win, with three other scattered among three eliminated picks. And in the North, the near-upset Denali received three selections, actual contender Badlands got one, and first-round knockout Craters of the Moon got one.

Today, the field gets cut from 12 to 8: follow all the action on Twitter!