Lando Norris beat team-mate Oscar Piastri to claim victory at the Austrian Grand Prix by over two seconds.
The McLaren pair fought an enthralling battle throughout the 70-lap contest at the Red Bull Ring. Ferrari driver Charles Leclerc rounded out the podium places in Spielberg.
The constructors' champions did intervene between its two drivers mid-way through the proceedings, after Piastri attempted an audacious and ill-advised move into Turn 4. Following that, their fight never quite got going again.
It was a chaotic start to the race, with Carlos Sainz failing to make the start. It led to an aborted start and the grand prix distance reduced by a lap.
Kimi Antonelli took out Max Verstappen at the third corner once the race did eventually get underway, forcing both instantly into retirement.
Gabriel Bortoleto finished in eighth to claim the first points of his F1 career and the first for a Brazilian driver since Felipe Massa in the final race of the 2017 season.
Check out the full Austrian Grand Prix race report below.
Result Race - Austrian
Sainz fire and aborted start
Carlos Sainz's difficult weekend at the Red Bull Ring continued at the start of the formation lap, with his Williams stuck on the grid.
The Spaniard eventually got his FW46 going, but not until the original start had been aborted. That triggered a restart of the race start procedure, meaning another 15 minutes until a second formation lap, with the grand prix distance reduced by a lap to 70.
As necessitated by the rules, the 30-year-old would be consigned to a pit-lane start. However, as he pulled to a stop, the rear of his car was engulfed in flames, ending his race before it had begun.
The remaining 19 runners got underway, and Piastri immediately dispatched of Leclerc to make it a McLaren one-two.
Further back, chaos ensued. Russell temporarily made his way past Hamilton as Verstappen got past Liam Lawson in the Racing Bulls.
Antonelli completely misjudged the entry to Turn 3, having to dive up the inside of the corner as he locked his front left tyre.
He tagged Verstappen, spinning around the Red Bull before the young Italian broke his front left corner on Lawson's VCARB 02. It ended both his and the Dutchman's afternoon, whilst the New Zealander continued, subsequently down in ninth.
The Mercedes was caught out by the concertina effect and made what was the definition of a rookie error, a grid penalty for the British Grand Prix looming. The incident brought out a brief safety car, before the race resumed at the start of lap 4 of 70.
Out front, the McLarens instantly built a gap to the pair of Ferraris behind. Piastri stayed within DRS, challenging his team-mate, who prevailed.
The biggest winners from the first lap carnage were Pierre Gasly and Alex Albon, moving up to sixth and seventh. By lap 9, the Alpine's soft tyres were suffering, and the Williams got by on its medium compound Pirellis.
On lap 11, Norris ran deep at the first corner. Piastri took the lead into Turn 3, but the British driver, aided by DRS, reclaimed the lead into the next corner. Excellent racing by the McLaren duo.
Gabriel Bortoleto's career-best weekend continued, getting past Gasly and into seventh, prompting the Frenchman to pit for fresh rubber on lap 13.
As the tense battle between Norris and Piastri continued out front, Albon was pulled into the pits and into retirement, ensuring a wretched, pointless weekend for the Grove-based team.
First pit stop phase
Heading into Turn 4 on lap 20, Piastri went deep, locking his tyres and narrowly avoiding contact with Norris. The race leader responded by pitting for white-walled hards.
It was a slow stop of 3.1 seconds on his MCL39. The Australian would stay out to offset his team-mate, despite a flat spot on his tyre.
Tom Stallard came on team radio to ask Piastri whether we could prefer a 1.5-second deficit to Norris or a 4-second gap with fresher tyres. He chose the latter, but was soon pitted at the end of lap 24. It was another slow stop, of 3.4 seconds this time.
As with Norris, it was an issue getting his front left wheel off. The 24-year-old came out over five seconds behind.
On lap 28, Piastri's radio line was opened again, this time Stallard communicating that his move at Turn 4 eight laps ago was "too marginal" and that the Woking squad had determined he cannot replicate that attempted overtake again, in the name of papaya rules.
Yuki Tsunoda, in the sole remaining Red Bull, took out Franco Colapinto at Turn 4 on lap 31, in a move that emulated many contentious incidents from yesteryear.
Although the Argentine could continue, the FIA stewards responded quickly with an investigation, the Japanese driver at risk of a penalty after the officials had declined to look at a moment between him and Lance Stroll.
A 10-second time penalty was ultimately handed down, ruining the 25-year-old's afternoon and piling on the misery at Red Bull's home event.
In the fight for the lead, Norris maintained a comfortable advantage of over six seconds to Piastri in second. Leclerc in third was a further 14 back, by the low 30s on the lap count.
The Australian would wipe seconds off his deficit with a series of fastest laps as he started to apply pressure on the leading McLaren. By lap 40, it was only a 3.2-second difference.
Second pit stop phase
After the race had settled into a relative calm, Leclerc opened the second pit stop phase on lap 50 of 70. Doing so provided a pocket of clean air for Norris to feed back into.
Hamilton followed his Ferrari team-mate on the following lap, with the leading McLaren coming in at the end of lap 52. Piastri responded after another rotation of the Red Bull Ring.
The Australian came out directly behind the battle between Colapinto and Tsunoda. He tried to take advantage of the Alpine going wide, who pushed the McLaren onto the grass on the run down to Turn 4.
The 24-year-old kept his foot to the floor as he bumped over the Styrian grass. An investigation followed, to no surprise, which consequently yielded a five-second time penalty.
Piastri appeared unfazed by the near miss and set about reeling in his team-mate as the race reached its final stage.
Within the final 10 laps, the drivers' championship leader had got within two seconds of Norris. Meanwhile, the Briton was informed of a small amount of front wing damage to his MCL39, setting up a grandstand finish.
That would not come to fruition, with Norris able to hold off his team-mate to win by 2.6 seconds, cutting the championship lead to 15 points.
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Join RacingNews365's Ian Parkes and Nick Golding, as they dissect a pivotal Austrian Grand Prix!
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