Round 2 brought 55 cars to a fast, non-standard layout of Motorland Aragón, and one format change that ended up deciding the race. iRacing's latest build made all three classes service fuel and tyres as two separate actions. Every pit stop became a calculation, and every strategist had to gamble.

Qualifying was tight. BS+COMPETITION's Rainer Talvar took GT3 pole with a 1:33.865, half a tenth clear of Lorenzo Castellani in the Zero7 Racing #77. Bleu Mercure Esport's Augustin Bernier took PCUP pole, and Impulse Racing's Thomas Burgess beat Team75 Bernhard by SimRC's Marvin Strehl to GT4 pole by 0.029s. The defending PCUP champions, Grid-and-Go.com eSports in the #901, set no lap at all and started last.

The start was frantic in all three classes. Talvar turned pole into the GT3 lead as SZESE E-Sport's David Toth and Falken Simracing's James Beumee swarmed Castellani's Zero7 into Turn 1. GT4 lost a front-runner inside a minute. At T+0:00:49 Fiercely Forward's Julen Fernandez was turned and sent off the road in a front-row collision, which left Burgess clear. Analyst David Haynes called the opening 20 minutes "carnage-filled."

Is someone playing James Bond and dropping oil on track?

— Booth call during the opening-lap chaos

Race Control was busy from the first lap. Bernier drew a 20s start-infringement penalty at T+0:06:14. Castellani got 60s at T+0:20:37 for showing up with the wrong team ID, which dropped the Zero7 #77 from the GT3 front row towards eighth. At the half hour Talvar led GT3 by about 2s from Toth's SZESE, Bernier led PCUP by about 6s with his penalty still to serve, and Burgess had a 6s GT4 cushion over the recovering Strehl.

The opening hour was mostly the field working out what the split-service rule cost. The booth spent much of it reverse-engineering stop times and settled on roughly 32s for fuel only, 43s for 2 tyres and 51s for 4. That spread made a no-tyre or short-tyre stop a real way to jump cars in the pits, especially with cloud cover rolling in and track temperature falling from 45°C.

In GT3, BS+COMPETITION, nicknamed the zebras, led most of the running as Talvar handed over to Lucas Hermann, but the pit stops kept swapping the net lead with Toth's SZESE. Grid-and-Go.com eSports' #1, with Alessandro Quintaie driving, went against the grain with a 2-tyre plan and stayed on the lead lap. As the first cycle played out, a Maniti Racing stop moved Toth's SZESE into the overall lead at T+1:31, 1.7s up on Hermann's BS+COMPETITION BMW on 4 fresh tyres. The same tyre offsets would decide the podium.

GT4 was already a mess. Team75 Bernhard's Strehl jumped up the order with a short fuel-only stop of about 38s at T+0:45, but Byte.Collino Max's Octavio Rondoletto made his own fuel gamble, braked up the inside and took the class lead. Burgess, the fastest GT4 of the hour, was spun hard into the wall by a GT3 going around the outside and limped in with damage. MONO COMPETITION's Henrik Theurer was caught out at Turn 2 and stopped just short of the armco. In PCUP, Impulse Racing built a lead of about 10s while the defending champions' Grid-and-Go #901 fought back hard from last on the grid.

It looks like when Shaq is standing next to a regular person. That's the Mustang GT3 next to the Cayman GT4.

— David Haynes, on the size gap between classes

The front of GT3 became a slow duel on mismatched rubber. Hermann took 4 fresh tyres and Toth took only 2. Hermann grabbed the lead at T+1:39 when Toth had a moment at the final corner, but the SZESE was straight back on his gearbox on the older set. The booth said you would never guess Toth was down on grip. Behind them Falken Simracing, Grid-and-Go and WSR Esports filled a top 5 covered by roughly 10s at the 2-hour mark, with 23 GT3s still running and only 4 retired.

Race Control stayed busy, with 35 reported incidents inside 2 hours and more than 40 by the third. The biggest sanction was a stacked 60s penalty for the #12 Fiercely Forward, 20s for the hit and 40s more for failing to serve it.

Rule number one, don't hit your teammate. Rule two, listen to what race control tells you.

— Booth call on the stacked Fiercely Forward penalty

SZESE's GT3 then took a 5s penalty for an earlier incident, which effectively wiped out the 10s their 2-tyre gamble had banked. At the top of the second hour Arjuna Kankapati and David Haynes handed the commentary to Alex Goldschmidt and Howie Burrows.

The classes below GT3 were no calmer. In PCUP, Impulse Racing's Luke Wallace led early until the defending champions' Grid-and-Go #901, by then the biggest mover on the board after gaining 8 places, went around the outside of him down the back straight to take the class lead on lap 63. GT4 swung the most. Byte.Collino Max led by 8s before a three-car scrap with XBD Racing and Team75 Bernhard swapped the lead again and again. Team75's Adam Isaksson dived inside XBD's Dani Calvo, ran deep and handed it straight back, "the Aragon version of shake and bake."

The middle of the race belonged to Grid-and-Go's #1 and its no-tyre strategy, run well offset from the rest. The booth was sceptical at first. Quintaie was lapping a second or more off Hermann's pace on old rubber, and Goldschmidt as good as called the bet a failure. Then the halfway stops played out, and Grid-and-Go came out clear at the top of GT3.

Well that timing tower makes me look like a fool... Oops!

— Alex Goldschmidt, as Grid-and-Go surfaced in the GT3 lead

By the end of the hour the #1 held a lead of about 10s over BS+COMPETITION, who were back on full pace with no tyre deficit but some 19 laps offset from the field's stop rhythm. Against the odds, the gamble had put the reigning champions right in the fight for the overall win.

The hour was crueller to Grid-and-Go's sister car, the defending champions' #901 PCUP entry. It had already sat 55.9s stationary in a troubled stop, then run 2 laps on wet tyres the crew had fitted by mistake. Then the car crashed hard out of Turn 12, left front first into the tyre barriers. It drew a meatball flag, was towed and was later confirmed retired. The cause was a rig hardware failure, "an even more heartbreaking way to lose the car." The field was down to 49 runners.

Two-thirds in, Grid-and-Go's #1 still led overall on its offset strategy. Quintaie was on a huge second stint on old tyres and still lapping competitively, and by skipping tyre changes the champions looked like they might save a whole stop. BS+COMPETITION still had the most raw speed and stayed close behind the leader. The hour's biggest moment belonged to a car that had gambled hard and lost.

Around T+3:40, a three-wide moment down the back straight ended in a huge wreck. SZESE's Mate Varga, in the #26 GT3, cut across Alex Caon's Zero7 Racing #907 and collected his own team's GT4, the #426 Mustang, whose engine blew in "probably the biggest wreck we've seen in our run." The Mustang sat in the pits for nearly 10 minutes before rejoining. Race Control, praised on air as "Diligent Stewards", gave Varga's SZESE a 35s penalty, and the booth argued over the call on the replays.

There was a BMW fight too. BS+HYBRID's Jaden Conwright chased WSR's Gabriel Erdelyi until contact at the final corner sent the WSR car nose-first into the barrier. It came away undamaged and carried on, and Conwright completed the pass for sixth. Then SZESE's day got worse. They served the 35s penalty, collided on the way out of the penalty spot and got another 30s for the unsafe rejoin. It was a penalty for serving a penalty.

To get a penalty for serving a penalty... it's not optimal, that's one way to describe it.

— Marcus Solholm

The booth called it "catastrophic," and it was. A car that could have been on the podium dropped to eighth. David Haynes and Marcus Solholm had by now taken over the commentary for the final 2 hours, with 47 of the 55 starters still running.

The run-in came down to pit timing, and BS+COMPETITION got it right. Grid-and-Go's #1 led on track but was offset and still owed an extra stop. The zebras ran even stints, a plan the booth kept calling "untouchable." Hermann's final service was a trimmed 32s fuel fill with no tyres, enough to reach the flag with the net lead in hand.

PCUP had the best fight of the hour. Bernier caught the class-leading Impulse Racing #915 of Ross O'Connor, and after a slipstreaming, side-drafting duel down the back straight he "parks it on the apex" to take the lead. He pulled a gap straight away. Bleu Mercure had spent the whole race recovering from their lap-one 20s penalty, and this was the pass that won them the class.

In GT4 the last stops left Isaksson's Team75 Bernhard #475 in front, with XBD Racing holding off MONO COMPETITION for the last podium place. In GT3 the only live fight on track was for third. Falken Simracing's Beumee held roughly 1.6s over WSR's Marley Joffe, whose final stop for 2 fresh tyres gave him a pace edge he could never quite turn into a pass through the traffic.

It's traffic giveth and traffic taketh away.

— Booth call on the GT3 fight for third

BS+COMPETITION controlled the GT3 race to the flag, running the strategy they had committed to early "to perfection." Talvar and Hermann took the overall and GT3 win, lapping a backmarker before the line, and led 145 of the 222 laps for the maximum 20 championship points. Grid-and-Go's #1 of Quintaie and Sean Campbell held on for second, 27.048s behind, a strong result from the no-tyre gamble. The Falken Simracing #44 finished third, a further 14s back.

Today, no penalty.

— Rainer Talvar and Lucas Hermann, after the sanctions that cost them at Motegi

Bleu Mercure Esport won PCUP by about 15s despite that early start penalty, ahead of Impulse Racing and CARLAR esports CUP. In GT4, Isaksson brought Team75 Bernhard by SimRC home 8s ahead on the road. The gap grew to roughly 13s once runner-up Byte.Collino Max's post-race contact penalty was applied, and Team75 had two wins from two rounds to open the season. Byte.Collino Max held second from MONO COMPETITION.

The flag fell after 222 laps with 46 cars still running, and WSR Esports' Joffe set the overall fastest lap, a 1:34.281. In the podium interviews the Team75 Bernhard pair admitted they had planned no double stints and had "kind of winged it" once single-lap tyre-savers proved viable. Bleu Mercure said they recovered from lap one with a full-push plan and no final tyre change.

At Motegi, penalties had buried BS+COMPETITION and left them third despite the best pace. At Aragon they went from pole to the flag, got the split-service rule right and took no penalties at all. Round 3 heads to the Circuit of the Americas on 9 August.