The 2013 Okayama GT 300km was the first round of the 2013 Super GT season. It took place on April 7, 2013.

Race result is as follows.^[1][2]

Pos	No	Team	Drivers	Chassis	Tyre	Time/Difference	Laps
GT500
1	100	Raybrig Team Kunimitsu	Takuya Izawa Takashi Kogure	Honda HSV-010 GT	B	1:58:48.911	81
2	17	Keihin Real Racing	Toshihiro Kaneishi Koudai Tsukakoshi	Honda HSV-010 GT	B	+0.555	81
3	23	Motul Autech NISMO	Ronnie Quintarelli Masataka Yanagida	Nissan GT-R	M	+4.903	81
4	38	Lexus Team Zent Cerumo	Kohei Hirate Yuji Tachikawa	Lexus SC430	B	+11.534	81
5	18	Weider Dome Racing	Frédéric Makowiecki Naoki Yamamoto	Honda HSV-010 GT	M	+12.612	81
6	12	Calsonic Team Impul	João Paulo de Oliveira Tsugio Matsuda	Nissan GT-R	B	+50.496	81
7	6	Lexus Team LeMans ENEOS	Yuji Kunimoto Kazuya Oshima	Lexus SC430	B	+54.294	81
8	39	Lexus Team DENSO SARD	Hiroaki Ishiura Juichi Wakisaka	Lexus SC430	B	+1:11.663	81
9	8	Autobacs Racing Team Aguri	Ralph Firman Kosuke Matsuura	Honda HSV-010 GT	B	+1:29.527	81
10	1	S-Road REITO MOLA	Satoshi Motoyama Yuhi Sekiguchi	Nissan GT-R	M	+1:30.704	81
11	32	Epson Nakajima Racing	Ryo Michigami Daisuke Nakajima	Honda HSV-010 GT	D	+1:32.049	81
12	36	Lexus Team Petronas TOM'S	Kazuki Nakajima James Rossiter	Lexus SC430	B	+1 Lap	80
13	24	D'Station ADVAN Kondo Racing	Michael Krumm Hironobu Yasuda	Nissan GT-R	Y	+1 Lap	80
14	19	Lexus Team WedsSport Bandoh	Seiji Ara Andre Couto	Lexus SC430	Y	+1 Lap	80
15	37	Lexus Team KeePer TOM'S	Andrea Caldarelli Daisuke Ito	Lexus SC430	B	+2 Laps	79
GT300
1	11	Gainer	Katsuyuki Hiranaka Björn Wirdheim	Mercedes-Benz SLS AMG GT3	D	1:59:57.178	77
2	4	GSR Hatsune Miku	Tatsuya Kataoka Nobuteru Taniguchi	BMW Z4 GT3	Y	+11.036	77
3	87	JLOC	Hideki Yamauchi Hiroki Yoshimoto	Lamborghini Gallardo GT3	Y	+1 Lap	76
4	52	OKINAWA-IMP RACING with SHIFT	Hironori Takeuchi Takeshi Tsuchiya	Mercedes-Benz SLS AMG GT3	Y	+1 Lap	76
5	61	R&D Sport	Kota Sasaki Tetsuya Yamano	Subaru BRZ	M	+1 Lap	76
6	62	Leon Racing	Masanobu Kato Haruki Kurosawa	Mercedes-Benz SLS AMG GT3	Y	+1 Lap	76
7	16	Team Mugen	Hideki Mutoh Yuhki Nakayama	Honda CR-Z	B	+1 Lap	76
8	33	Hankook KTR	Tomonobu Fujii Masami Kageyama	Porsche 911 GT3-R	H	+2 Laps	75
9	48	Dijon Racing	Katsumasa Chiyo Hiroshi Takamori	Nissan GT-R GT3	Y	+2 Laps	75
10	0	Team Taisan Ken Endless	Kyosuke Mineo Naoki Yokomizo	Porsche 997 GT3	Y	+2 Laps	75
11	86	JLOC	Shinya Hosokawa Koji Yamanishi	Lamborghini Gallardo GT3	Y	+2 Laps	75
12	55	Autobacs Racing Team Aguri	Takashi Kobayashi Shinichi Takagi	Honda CR-Z	B	+2 Laps	75
13	7	Bonds Racing	Ryo Orime Igor Sushko	Nissan GT-R GT3	Y	+2 Laps	75
14	30	apr	Fairuz Fauzy Yuki Iwasaki	Audi R8 LMS ultra	Y	+2 Laps	75
15	10	Gainer	Tetsuya Tanaka Masayuki Ueda	Mercedes-Benz SLS AMG GT3	D	+3 Laps	74
16	21	Hitotsuyama Racing	Richard Lyons Akihiro Tsuzuki	Audi R8 LMS ultra	H	+3 Laps	74
17	5	Team Mach	Tetsuji Tamanaka Junichiro Yamashita	Ferrari 458 Italia GT3	Y	+3 Laps	74
18	360	Tomei Sports	Takuya Shirasaka Atsushi Tanaka	Nissan GT-R GT3	Y	+4 Laps	73
19	9	Pacific Direction Racing	Shogo Mitsuyama You Yokomaku	Porsche 911 GT3-R	Y	+10 Laps	67
20	50	Arnage Racing	Masaki Kano Hideto Yasuoka	Aston Martin V12 Vantage GT3	Y	+20 Laps	57
Ret	3	NDDP Racing	Kazuki Hoshino Daiki Sasaki	Nissan GT-R GT3	Y	+33 Laps	44
Ret	22	R'Qs MotorSports	Masaki Jyonai Hisashi Wada	Mercedes-Benz SLS AMG GT3	Y	+39 Laps	38
Ret	88	JLOC	Takayuki Aoki Manabu Orido	Lamborghini Gallardo GT3	Y	+41 Laps	36
Ret	31	apr	Morio Nitta Koki Saga	Toyota Prius	Y	+69 Laps	8
Ret	2	Cars Tokai Dream28	Hiroki Katoh Kazuho Takahashi	McLaren MP4-12C GT3	Y	+71 Laps	6

• Super GT official website (in English)