DES MOINES, Iowa – Ryan Dirteater helped himself to a Round 1 victory on Saturday night at Wells Fargo Arena during the first day of the PBR (Professional Bull Riders) Des Moines Invitational, presented by Cooper Tires. The win propelled Dirteater to eighth in the world standings.

Dirteater earned the win with an 88-point ride on Milky Jones (Jared Allen’s Pro Bull Team). He earned 100 points towards the PBR world standings as he won his second Built Ford Tough Series (BFTS) round of the season.

Mexican bull rider Jorge Valdiviezo continued to make the most of his arrival on the BFTS by earning second place in the round after riding Shoot Out the Lights (K-C/Josie McElroy Bucking Bulls) for 87.25 points. Valdiviezo earned 60 world points.

Rubens Barbosa turned in an 85.75-point ride on Mr. Big Stuff (K-C Bucking Bulls) and took third place on the night, picking up 50 points in the world standings.

Joao Ricardo Vieira sits in fourth place with an 85.5-point ride on Cowtown Slinger (Dakota Rodeo/Chad Berger/Clay Struve). Vieira picked up 40 points in the world standings and is now just 300 points behind current world No. 1 J.B. Mauney. Mauney failed to cover Justified (Bailey Pro Rodeo) in the last ride of the night.

Joao Ricardo Vieira finished in fourth place with an 85.5-point ride on Cowtown Slinger (Dakota Rodeo/Chad Berger/Clay Struve). Vieira picked up 40 world points to move to No. 3 in the world standings and is now just 300 points behind current world No. 1 J.B. Mauney. Mauney failed to cover Justified (Bailey Pro Rodeo) in the last ride of the night.

Veteran Kasey Hayes held the lead in the round most of the night but settled for fifth place with an 84.5-point trip aboard Secret Agent (Bailey Pro Rodeo). Hayes secured 30 points towards the world standings.

Cooper Davis rounded out the Top 7 with an 83-point trip on Comfortably Numb (Bailey Pro Rodeo). Davis pocketed five points towards the world standings and has now ridden four of his last six bulls.

The top bull riders in the world will return to Wells Fargo Arena Sunday afternoon for Round 2 and the Built Ford Tough Championship Round starting at 1:30 p.m. CT.  CBS Sports Network will air Round 2 and the championship round at 8:00 p.m. ET on Sunday, April 24.

PBR LIVE will stream the event on Sunday starting at 1:30 p.m. ET. PBR LIVE is now available at no charge to all fans and media. Visit www.PBR.com/live to view. Fans can also watch all of the action live via the PBR LIVE app, available for download now on Google Play and iTunes.

The Des Moines Invitational is the 15th event on the 2016 PBR Built Ford Tough Series schedule. The season will consist of 26 stops, traveling to such cities as Chicago, New York, Anaheim, Calif., and Dallas. It will climax with the PBR Built Ford Tough World Finals in Las Vegas on Nov. 2-6 when the 2016 PBR World Champion, the bull rider who earns the most world standings points during the season, will receive the coveted World Championship belt buckle and $1 million bonus.

The BFTS is televised every week on CBS, CBS Sports Network and networks around the world. BFTS telecasts are produced for the PBR under a multi-year agreement with David Neal Productions, a Los Angeles-based production company led by 34-time Emmy® Award winner and Peabody Award winner David Neal, who serves as executive producer.

PBR Digital Editor Kristian Limas contributed to this report. 

Professional Bull Riders Built Ford Tough Series
Des Moines Invitational, presented By Cooper Tires
Wells Fargo Arena, Des Moines, Iowa
Event Leaders (Round 1-Event Aggregate-Event Points)

1. Ryan Dirteater, 88-88.00-100 Points.
2. Jorge Valdiviezo, 87.25-87.25-60 Points.
3. Rubens Barbosa, 85.75-85.75-50 Points.
4. Joao Ricardo Vieira, 85.5-85.50-40 Points.
5. Kasey Hayes, 84.5-84.50-30 Points.
6. Valdiron de Oliveira, 83.25-83.25-15 Points.
7. Cooper Davis, 83-0-0-83.00-5 Points.
8. Fraser Babbington, 80.5-80.50
9. Juliano Antonio Da Silva, 79.25-79.25
10. Paulo Ferreira Lima, 73-73.00
11. Kaique Pacheco, 70.5-70.50
J.B. Mauney, 0-0.00
Fabiano Vieira, 0-0.00
Shane Proctor, 0-0.00
Eduardo Aparecido, 0-0.00
Wallace Vieira de Oliveira, 0-0.00
Tanner Byrne, 0-0.00
Mike Lee, 0-0.00
Jess Lockwood, 0-0.00
Derek Kolbaba, 0-0.00
Lachlan Richardson, 0-0.00
Gage Gay, 0-0.00
Stetson Lawrence, 0-0.00
Nevada Newman, 0-0.00
Silvano Alves, 0-0-0.00
Guilherme Marchi, 0-0.00
Aaron Roy, 0-0.00
Kurt Shephard, 0-0.00
Stormy Wing, 0-0.00
Cody Nance, 0-0.00
Justin Paton, 0-0.00
Tyler Harr, 0-0.00
Jay Miller, 0-0.00
Nathan Schaper, 0-0.00
Reese Cates, 0-0.00