RTG Peugeot rider McPhee was never threatened for the lead once poleman Binder - who was 1.7s in the clear - lost the front end at Turn 1 with five laps remaining.

A crash for wet-weather specialist Khairul Idham Pawi moments later gifted McPhee a 10 second lead over Jorge Martin in second, which he duly converted into his first win on his 76th Grand Prix start.

"I can't even explain it, it's the best feeling in the world," said the Scottish rider, who saved a big moment with three laps to go. "Absolutely delighted, really happy."

Poleman Binder retook the top spot from early leader Martin at the start of the sixth lap, as a lead quartet consisting of the pair, along with McPhee and Aron Canet, emerged at the head of the field.

Canet crashed out on lap 8, as Martin gradually lost touch with the leading duo of Binder and McPhee, falling into the clutches of Pawi - who had climbed from a lowly 28th place on the grid.

Binder started to pull away from McPhee at the halfway stage as Pawi held a comfortable third, unable to repeat the heroics of his Argentina and Germany, before both he and Binder fell.

Behind McPhee, whose winning margin was 8.806s, Aspar Mahindra rider Martin secured his first Grand Prix podium in second, effectively making it a one-two for the Indian marque - which runs identical bikes to Peugeot.

Less than a second behind Martin was Gresini's Fabio di Giannantonio, who secured his third rostrum finish in six races.

Enea Bastianini, who had started second but suffered a horrendous opening few laps, recovered to fourth, ahead of Niccolo Antonelli, local man Jakub Kornfeil and Binder's Ajo KTM teammate Bo Bendsneyder.

Austria winner Joan Mir, Niccolo Bulega and Jorge Navarro completed the top 10, the latter having ran sixth before a late slump.

Binder still holds a 61-point advantage over Navarro in the standings despite his failure to score, ahead of Bastianini, Romano Fenati - absent following his expulsion from Sky Racing Team VR46 - and Francesco Bagnaia, who failed to score after crashing out.

Race results:

Pos.	#	Rider	Bike	Time/Gap
1	17	John McPhee	Peugeot	45'36.087
2	88	Jorge Martin	Mahindra	8.806
3	4	Fabio Di Giannantonio	Honda	9.777
4	33	Enea Bastianini	Honda	10.654
5	23	Niccolo Antonelli	Honda	13.872
6	84	Jakub Kornfeil	Honda	15.533
7	64	Bo Bendsneyder	KTM	15.819
8	36	Joan Mir	KTM	16.289
9	8	Nicolo Bulega	KTM	16.473
10	9	Jorge Navarro	Honda	16.681
11	95	Jules Danilo	Honda	18.198
12	16	Andrea Migno	KTM	21.640
13	24	Tatsuki Suzuki	Mahindra	31.007
14	11	Livio Loi	Honda	36.895
15	65	Philipp Ottl	KTM	43.651
16	98	Karel Hanika	KTM	57.814
17	19	Gabriel Rodrigo	KTM	1'01.428
18	42	Marcos Ramirez	Mahindra	1'04.134
19	6	Maria Herrera	KTM	1'27.585
20	76	Hiroki Ono	Honda	1'27.997
21	20	Fabio Quartararo	KTM	1'33.942
22	3	Fabio Spiranelli	Mahindra	1'34.610
23	58	Juan Francisco Guevara	KTM	1'34.942
24	77	Lorenzo Petrarca	Mahindra	2'08.319
Ret	55	Andrea Locatelli	KTM	3 Laps
Ret	41	Brad Binder	KTM	5 Laps
Ret	89	Khairul Idham Pawi	Honda	5 Laps
Ret	43	Stefano Valtulini	Mahindra	5 Laps
Ret	40	Darryn Binder	Mahindra	6 Laps
Ret	21	Francesco Bagnaia	Mahindra	7 Laps
Ret	12	Albert Arenas	Peugeot	8 Laps
Ret	7	Adam Norrodin	Honda	10 Laps
Ret	44	Aron Canet	Honda	11 Laps