This weekend, Indy NXT raced on the Detroit street track, GB3 conquered Spa’s challenging weather and Formula 4 CEZ took on the tight and twisty Salzburgring. Feeder Series reviews all the action.

By Feeder Series

The hottest months of the year are upon us in much of the world, and this weekend’s racing certainly brought the heat – and heated exchanges – to the track. Both F1 and IndyCar featured moments of acrimony this weekend, and there was plenty of drama in the junior single-seater world too.

We’ll cover Formula 2’s and Formula 3’s respective rounds in Barcelona in separate review articles today and tomorrow. Far less widely viewed but by no means irrelevant was GB3’s third round at Spa-Francorchamps, where Hillspeed racing hotshot Freddie Slater stole the first with a last-to-first drive in the third race on a drying track. Two familiar faces stood atop the podium in F4 CEZ’s third round at the Salzburgring, while Indy NXT had twists and turns from start to finish in its 45-lap race around the streets of Detroit, Michigan.

Keep reading for the full details on those series. And as for the Nordic junior single-seater scene, Sebastian Bach and Marius Kristiansen took wins in the rounds eligible for the Nordic Championship Formula crown, while Richard Olson fought back in Formula Nordic to avenge Melvin Kalousdian’s opening-round sweep a few weeks ago.

1. GB3: Le stars in Spa as Slater wins from the back
2. F4 CEZ: Karhan wins twice as Trappa maintains points lead
3. Indy NXT: Hauger dominates crash-filled Detroit weekend

GB3: Le stars in Spa as Slater wins from the back

Kanato Le and Freddie Slater of Hillspeed starred in GB3’s Spa-Francorchamps round as race one winner Alex Ninovic left with an eight-point lead over Patrick Heuzenroeder.

Le started seventh and finished third in race one, 0.210 seconds behind Hugo Schwarze, who said the race was ‘a lot more chaotic than it seemed’. In race two, Le converted pole into victory despite falling behind Ninovic, Gianmarco Pradel and teammate Hiyu Yamakoshi at the start.

“I released the clutch a bit too quickly and almost stalled,” Le explained. He grabbed third at Les Combes as Pradel lost ground before passing Yamakoshi on the Kemmel Straight on lap two and leader Ninovic at the same spot on lap four.

“I didn’t panic. I just focused on getting back the position[s],” Le said.

That race ran for only nine of 11 scheduled laps. Per a post-race report from the race director, at 17:56 local, circuit safety manager Muriel Baugnee ‘caused Chequered Flag light panels to be illuminated from T16 to the Control Line whilst cars were still racing’.

The report also said Baugnee deployed marshals to ‘stand on the track after T1 to direct the GB3 cars into the Endurance Pit Lane’ in an attempt to meet the circuit’s 6pm curfew.

These events were a ‘direct action’ by Baugnee and ‘not an instruction/recommendation channelled through the Clerk of the Course’, per the report. The stewards found breaches of the FIA’s International Sporting Code and circuit licence regulations and requested that the circuit ‘review competencies of staff assigned to work in Race Control’.

Because of engine trouble on his first push lap in qualifying, Slater started all three races 23rd. He recovered to ninth and eighth Saturday but took a stunning victory Sunday after starting on slicks on a damp track. 

“We knew on the formation lap that there was a small dry line,” Slater said. “It wasn’t quite the fastest tyre for the first two laps… but I knew that these cars dry the track quite fast with the amount of aero we have.”

Just five cars lined up on slick tyres, with three drivers pitting for slicks before the start. That promoted Slater to 20th, and he climbed through the field in the opening laps. Slater gained the last six possible places on lap six and won by 8.155 seconds over Le, who said Spa was ‘one of [his] best weekends in single-seaters’.

“[I] just had to pick them off one by one. [It’s] not the easiest thing to overtake on slicks on the wet part of the track,” Slater said, “[but] it’s obviously a nice way to end the weekend.

After winning race one and finishing third in race two, Ninovic had a disappointing third race. Starting ninth on wets, he pitted for slicks on lap seven, only to lose his rear-right tyre through Blanchimont and have to coast back to pit lane. Rodin Motorsport were fined £2,000 for releasing his car in an unsafe condition.

Report by George Sanderson

Results	P1	P2	P3
Qualifying 1	Alex Ninovic, 2:14.905	Gianmarco Pradel, +0.223s	Hugo Schwarze, +0.567s
Qualifying 2	Kanato Le, 2:13.740	Gianmarco Pradel, +0.382s	Nikita Johnson, +0.663s
Race 1 (11 laps)	Alex Ninovic, 27:00.975	Hugo Schwarze, +2.351s	Kanato Le, +2.561s
Race 2 (9 laps)	Kanato Le, 20:26.559	Nikita Johnson, +1.222s	Alex Ninovic, +2.286s
Race 3 (11 laps)	Freddie Slater, 26:39.344	Kanato Le, +8.155s	Reza Seewooruthun, +9.520s

Standings	Drivers	Teams
P1	Alex Ninovic, 165	Hitech, 293
P2	Patrick Heuzenroeder, 157	Rodin Motorsport, 288
P3	Deagen Fairclough, 133	Hillspeed, 274
P4	Freddie Slater, 130	Xcel Motorsport, 247
P5	Noah Lisle, 128	Argenti with Prema, 232
P6	Kanato Le, 119	JHR Developments, 214
P7	Will Macintyre, 116	Elite Motorsport, 143
P8	Gianmarco Pradel, 116	VRD Racing, 123
P9	Nikita Johnson, 113	Fortec Motorsport, 29
P10	Reza Seewooruthun, 112	Chris Dittmann Racing, 10

Read the previous round’s report here.

F4 CEZ: Karhan wins twice as Trappa maintains points lead

Jenzer Motorsport’s Max Karhan scored his first wins of the F4 CEZ season at the Salzburgring,  as teammate Gino Trappa won race three and kept the points lead as the season’s first half comes to a close.

The Jenzer Motorsport duo exchanged fastest times in the collective tests, but Trappa was the one who topped practice and qualifying ahead of Karhan and Nicolás Cortés.

Trappa kept the lead at the start of race one, but Karhan overtook him by sticking it out around the outside through Turns 11 and 12 on lap three. Two laps later, David Walther and Benett Gáspár made contact while disputing fifth, leaving the Dane with front wing damage and the Hungarian with a right-rear puncture.

After being overtaken by teammate Andreas Lo Bue, Walther was involved in another collision on lap 11 with David Gorčica, which sent the Czech driver into the wall and brought out the safety car. The race restarted with just under four minutes remaining, and Karhan resisted Trappa’s attacks in the final three laps to take his first win of the season as Cortés rounded out the all-Jenzer podium.

In race two, Karhan started on pole and initially pulled away, but as the race went on, Trappa closed in and began attacking the Czech driver for the lead with 10 minutes left. Their battle was neutralised, however, when the safety car came out after Cortés ran wide at Turn 12 and hit the tire barriers while locked in a race-long battle with Simon Schranz for fourth.

At the restart, Schranz and Javier Herrera made contact, which caused the Mexican to spin at Turn 2. Herrera kept going, though, and Karhan held the lead to take his second consecutive win ahead of Trappa and Schranz. Walther and Mathilda Paatz rounded out the top five.

In race three, Herrera started first, but Cortés overtook him at the start as the former cut through the gravel at Turn 2. Cortés didn’t keep the lead for long, however, as his own moment of oversteer at Turn 11 handed the lead to Trappa later that lap. 

Herrera was still in contention and even challenged Trappa for the lead on lap three, but from there, his race collapsed Cortés and Karhan both passed him at Turn 11. On lap 12, he came into the pits from sixth place to retire from the race, shortly after being overtaken by both Hady-Noah Mimassi and Walther.

With three minutes left, Teodor Borenstein crashed at Turn 5, causing the race to be ended prematurely under red flag conditions. With that, the result were taken on countback from two laps before, and Trappa took his third win of the season ahead of Karhan and Walther.

Trappa currently leads the points by 42 over Karhan and 75 over Walther. Jenzer Motorsport increased their lead in the teams’ standings to 214 over Maffi Racing.

Report by Marco Albertini

Results	P1	P2	P3
Qualifying	Gino Trappa, 1:21.749	Max Karhan, +0.303s	Nicolás Cortés, +0.569s
Race 1 (17 laps)	Max Karhan, 25:29.769	Gino Trappa, +0.482s	Nicolás Cortés, +1.643s
Race 2 (17 laps)	Max Karhan, 25:42.582	Gino Trappa, +0.413s	Simon Schranz, +2.903s
Race 3 (14 laps)	Gino Trappa, 19:28.098	Max Karhan, +1.230s	David Walther, +5.038s

Standings	Drivers	Teams
P1	Gino Trappa, 177	Jenzer Motorsport, 347
P2	Max Karhan, 135	Maffi Racing, 133
P3	David Walther, 102	Renauer Motorsport, 120
P4	Bart Harrison, 65	Mathilda Racing, 58
P5	Nicolás Cortés, 63	Real Racing, 37
P6	Mathilda Paatz, 58	AS Motorsport, 17
P7	Hady-Noah Mimassi, 51	Zengő Motorsport, 15
P8	Javier Herrera, 44	Janik Motorsport, 12
P9	William Karlsson, 42	F4 CEZ Academy, 10
P10	Luca Viişoreanu, 37	Henni Performance, 0

Read the previous round’s report here.

Indy NXT: Hauger dominates crash-filled Detroit weekend

Andretti Global’s Dennis Hauger continued his domination of the 2025 Indy NXT season by leading all 45 laps of the Detroit race to eke out a 38-point lead in the drivers’ standings, his largest advantage all season.

Hauger’s closest championship rival, Andretti rookie Lochie Hughes, continued his strong pace from Indianapolis by topping the first qualifying group by nearly six tenths. But Hauger’s final flyer in the second group, a 1:04.9896, was nearly a second faster than the next best time in his group by Max Taylor and crucially 0.0620 seconds faster than Hughes’ 1:05.0516.

At the start, Hughes challenged Hauger around the outside of the first corner, but their squabbling proved inconsequential.

A pile-up at Turn 4 catalysed by contact between Callum Hedge and Myles Rowe blocked the track, immediately triggering a red flag. Half of the field was involved in the incident, with Ricardo Escotto and Max Taylor retiring and five others falling at least one lap down.

The restart came on lap four, and Hauger went unchallenged this time. Instead, Hughes faced pressure from De Alba, who made a pass around the outside of Turn 3 on lap five to steal second place and lead an Andretti 1-2-3.

Hughes bided his time before going for another move, finally making an attempt on De Alba on lap 18 around the outside of Turn 3. The move did not succeed and he touched the Mexican’s rear-left wheel, but he tried again the next lap. That time, though, he slid on exit, giving fourth-placed Caio Collet an opportunity to draw alongside him.

Hughes might have lost the battle twice, but he won the war. Earlier on lap 19, De Alba clipped the wall at Turn 1 and broke his front wing. A few laps later, the damaged part had begun to rub up against his front-right tyre, and he eventually pitted from second on lap 24.

By then, Hughes had lost about five seconds to Hauger, but lapped cars provided an additional variable in the lead pursuit over the final 15 laps. While Hauger lost two of those seconds while trying to navigate them, Hughes ended up six and a half seconds in arrears once the lapped traffic was behind him.

Then on lap 38, Hughes hit the wall and damaged his front wing, much the same way as De Alba did earlier. The Australian driver tried to hang on, but after losing 10 seconds in one lap, he pitted, opening up the podium places to Collet and Juan Maunel Correa.

Hughes stayed on the lead lap – one of just eight drivers to do so – when the race restarted with two laps remaining. He rose from eighth to sixth on lap 44 before taking fifth from Sebastian Murray, who sustained nose damage, on lap 45.

As Hauger won ahead of Collet and Correa, De Alba and Miller both failed to finish the lap, with the former crashing at Turn 3.

Report by Michael McClure

Results	P1	P2	P3
Qualifying, Group 1	Lochie Hughes, 1:05.0516	Caio Collet, +0.5733s	Callum Hedge, +1.0799s
Qualifying, Group 2	Dennis Hauger, 1:04.9896	Max Taylor, +0.9658s	Salvador de Alba, +0.9876s
Race (45 laps)	Dennis Hauger, 55:42.0831	Caio Collet, +1.0460s	Juan Manuel Correa, +1.5442s

Standings	Drivers	Rookies
P1	Dennis Hauger, 241	Dennis Hauger, 241
P2	Lochie Hughes, 203	Lochie Hughes, 203
P3	Caio Collet, 157	Liam Sceats, 106
P4	Myles Rowe, 146	Sebastian Murray, 91
P5	Salvador de Alba, 135	Evagoras Papasavvas, 77
P6	Josh Pierson, 134	Tommy Smith, 70
P7	Callum Hedge, 107	Hailie Deegan, 68
P8	Liam Sceats, 106	Juan Manuel Correa, 60
P9	Jack William Miller, 97	Nikita Johnson, 55
P10	Jordan Missig, 96	Max Taylor, 37

Read the previous round’s report here.

Header photo credit: Jakob Ebrey Photography