The 2005 Spanish motorcycle Grand Prix was the first round of the 2005 MotoGP Championship. It took place on the weekend of 8-April 10, 2005 at Jerez.

MotoGP classification

Pos	Rider	Manufacturer	Time/Retired	Grid	Points
1	Valentino Rossi	Yamaha	45:43.156	1	25
2	Sete Gibernau	Honda	+8.631	2	20
3	Marco Melandri	Honda	+18.460	3	16
4	Alex Barros	Honda	+26.938	8	13
5	Shinya Nakano	Kawasaki	+27.659	5	11
6	Troy Bayliss	Honda	+28.509	9	10
7	Max Biaggi	Honda	+30.618	16	9
8	Makoto Tamada	Honda	+36.887	7	8
9	Colin Edwards	Yamaha	+37.608	15	7
10	Carlos Checa	Ducati	+39.678	12	6
11	Alex Hofmann	Kawasaki	+42.283	10	5
12	Toni Elías	Yamaha	+55.457	13	4
13	Loris Capirossi	Ducati	+1:02.372	6	3
14	John Hopkins	Suzuki	+1:19.346	11	2
15	Roberto Rolfo	Ducati	+1:33.607	18	1
16	James Ellison	Blata	+1 Lap	21
17	Franco Battaini	Blata	+1 Lap	19
18	Rubén Xaus	Yamaha	+3 Laps	17
Ret	Nicky Hayden	Honda	Retirement	4
Ret	Kenny Roberts Jr	Suzuki	Retirement	14
Ret	Shane Byrne	Proton	Retirement	20

250cc classification

Pos	Rider	Manufacturer	Time/Retired	Grid	Points
1	Dani Pedrosa	Honda	45:36.679	1	25
2	Sebastián Porto	Aprilia	+2.136	2	20
3	Alex de Angelis	Aprilia	+29.682	5	16
4	Andrea Dovizioso	Honda	+36.539	10	13
5	Héctor Barberá	Honda	+37.499	7	11
6	Jorge Lorenzo	Honda	+37.728	9	10
7	Roberto Locatelli	Aprilia	+45.038	8	9
8	Alex Debón	Honda	+56.339	14	8
9	Simone Corsi	Aprilia	+1:02.844	12	7
10	Mirko Giansanti	Aprilia	+1:10.708	21	6
11	Chaz Davies	Aprilia	+1:20.790	19	5
12	Radomil Rous	Honda	+1:20.950	20	4
13	Alex Baldolini	Aprilia	+1 Lap	18	3
14	Andrea Ballerini	Aprilia	+1 Lap	23	2
15	Gregory Leblanc	Aprilia	+1 Lap	25	1
16	Gabor Rizmayer	Yamaha	+1 Lap	27
Ret	Alvaro Molina	Aprilia	Retirement	17
Ret	Jakub Smrž	Honda	Retirement	15
Ret	Hugo Marchand	Aprilia	Retirement	26
Ret	Steve Jenkner	Aprilia	Retirement	13
Ret	Casey Stoner	Aprilia	Retirement	3
Ret	Randy de Puniet	Aprilia	Retirement	4
Ret	Yuki Takahashi	Honda	Retirement	11
Ret	Arnaud Vincent	Fantic	Retirement	28
Ret	Hiroshi Aoyama	Honda	Retirement	6
Ret	Dirk Heidolf	Honda	Retirement	22
Ret	Sylvain Guintoli	Aprilia	Retirement	16
Ret	Martin Cardenas	Aprilia	Retirement	24

125cc classification

Pos	Rider	Manufacturer	Time/Retired	Grid	Points
1	Marco Simoncelli	Aprilia	42:27.960	1	25
2	Mika Kallio	KTM	+1.418	5	20
3	Fabrizio Lai	Honda	+1.510	4	16
4	Mattia Pasini	Aprilia	+8.282	2	13
5	Gábor Talmácsi	KTM	+8.930	6	11
6	Manuel Poggiali	Gilera	+13.651	11	10
7	Héctor Faubel	Aprilia	+14.590	7	9
8	Joan Olivé	Aprilia	+17.164	24	8
9	Julián Simón	KTM	+17.262	14	7
10	Manuel Hernández	Aprilia	+31.147	15	6
11	Mike di Meglio	Honda	+34.737	16	5
12	Pablo Nieto	Derbi	+34.801	13	4
13	Jordi Carchano	Aprilia	+37.146	17	3
14	Aleix Espargaró	Honda	+49.591	22	2
15	Nicolás Terol	Derbi	+51.629	26	1
16	Imre Tóth	Aprilia	+54.608	19
17	Mateo Tunez	Aprilia	+54.747	32
18	Federico Sandi	Honda	+54.960	25
19	Julián Mirallés	Aprilia	+55.527	30
20	Sandro Cortese	Honda	+1:10.864	21
21	Andrea Iannone	Aprilia	+1:22.697	29
22	Karel Abraham	Aprilia	+1:26.526	36
23	Raymond Schouten	Honda	+1:38.103	35
24	Sasha Hommel	Malaguti	+1:47.461	37
25	Vincent Braillard	Aprilia	+1 Lap	27
Ret	Tomoyoshi Koyama	Honda	Retirement	10
Ret	Alexis Masbou	Honda	Retirement	28
Ret	Daniel Sáez	Aprilia	Retirement	38
Ret	Dario Giuseppetti	Aprilia	Retirement	31
Ret	Toshihisa Kuzuhara	Honda	Retirement	23
Ret	Thomas Lüthi	Honda	Retirement	3
Ret	Sergio Gadea	Aprilia	Retirement	18
Ret	Lukas Pesek	Derbi	Retirement	12
Ret	Angel Rodríguez	Honda	Retirement	33
Ret	Raffaele de Rosa	Aprilia	Retirement	8

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2005 Spanish motorcycle Grand Prix