In the 250 west division, it was JGR Suzuki‰Ûªs Alex Martin who grabbed the first holeshot of the evening but was quickly passed by Monster Energy Yamaha‰Ûªs Justin Cooper for the lead.
Monster Energy Pro Circuit‰Ûªs Austin Forkner then took his turn out front, until Cooper made an aggressive pass to recapture the lead and going on to win.
It looked as though all three Australian riders in the opening heat would qualify through to the main event, until Aaron Tanti got caught up along with multiple other riders, pushing him well back through the field to finish in 15th.
Jett Lawrence who also got tangled up momentarily was able to recover and work his way forward to finish 6th and was joined directly into the main event by Jay Wilson who finished one spot further back in 7th.
In the second heat, it was Geiko Honda‰Ûªs Christian Craig who lead the field through the first turn; however, it was 2019 West champion Dylan Ferrandis who lead the field at the end of the opening lap, with Troy Lee Designs KTM racer Brandon Hartranft in third.
Monster Energy Yamaha‰Ûªs Ferrandis who topped qualifying earlier in the day rode the perfect race to take the win ahead of Craig, with Monster Energy Pro Circuit‰Ûªs Cameron Mcadoo rounding out the top three.
For Australia‰Ûªs Luke Clout racing for the Australian Penrite Honda team, he kicked started his American campaign with an excellent 5th place finish, sending him directly to the nights main event. At the same time, teammate and Australian championship contender Mitchell Oldenburg recovered from an early race crash to finish 8th and also to qualify for the night's main event.
The second Aussie in the field, Geran Stapleton finished back in 16th and joined Tanti in the LCQ.
Tanti looked as though he would easily qualify via the LCQ, comfortably sitting in second position early in the race behind Michael Mosiman, until he crashed heavily while jumping out of a turn and was collected mid-air by Castello, putting both riders out of the race.
Out front, Mosiman took the win ahead of Mitchell Falk and Logan Karnow, while Chris Howell made a forceful pass on Japanese racer Taiki Koga in the final turn to secure the last spot in the night's main event.
Stapleton finished in 11th.
In the 250 West main event, it was Forkner who grabbed the holeshot but was quickly relegated back to second position by Cooper as the two went to battle for the win.
Forkner wasted no time retaking the race lead, with the two racers then staying within 1-2 seconds of each other for the majority of the race, while behind them, 2019 champion Ferrandis worked his way through the field, and by the halfway mark made a move around Craig for third.
Out front things were still tight between Forkner and Cooper when Forkner jumped into the tough blocks. While he was able to stay on the bike, it allowed Cooper to take over the lead and also Ferrandis to momentarily move into second, until Forkner cut the track while re-entering.
While Forkner did then slow up and allow Ferrandis to move back into second position, he was later penalised two positions.
Upfront Cooper held on to take a comfortable win ahead of his teammate, with Forkner crossing the line in third, then relegated back to 5th with his two-position penalty, giving Craig the official final spot on the podium.
‰ÛÏThe track was tough for all of us, and I was trying to pressure him into that mistake right there, I ended up being patient, and it worked out,‰Û