Misplaced Pages

Yang Tsung-hua and Yi Chu-huan won the last edition in 2009.
Prakash Amritraj and Philipp Oswald won the title, defeating Sanchai Ratiwatana and Sonchat Ratiwatana 6–3, 6–4 in the final.

Seeds

1. Sanchai Ratiwatana / Sonchat Ratiwatana (final)
2. Lee Hsin-han / Peng Hsien-yin (quarterfinals)
3. Purav Raja / Divij Sharan (first round)
4. Brydan Klein / Dane Propoggia (semifinals)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

Draw

	First round							Quarterfinals							Semifinals							Final
	1	Sa Ratiwatana So Ratiwatana	7	7
	WC	Koki Takada Takashi Yano	5	6				1	Sa Ratiwatana So Ratiwatana	6	7
		B Mitchell M Reid	5	6					S Fransen J Millman	2	6
		Stephan Fransen J Millman	7	4											1	Sa Ratiwatana So Ratiwatana	6	7
	4	B Klein D Propoggia	6	7											4	B Klein D Propoggia	3	6
	WC	Daiki Kondo K Uchida	0	6				4	B Klein D Propoggia	6	6
		H Moriya Y Uchiyama	3	2					M Bašić L-c Huang	1	2
		M Bašić L-c Huang	6	6																		1	Sa Ratiwatana So Ratiwatana	3	4
		T Chen A Kudryavtsev	0	2																		PR	P Amritraj P Oswald	6	6
	PR	P Amritraj P Oswald	6	6				PR	P Amritraj P Oswald	5	6
		H Kondo C-h Yi	6	7					H Kondo C-h Yi	7	4
	3	P Raja D Sharan	3	6											PR	P Amritraj P Oswald	6	6
		Andrea Arnaboldi M Viola	6	6												A Arnaboldi M Viola	1	4
	WC	T Matsui Masato Shiga	4	4					A Arnaboldi M Viola	6	6
		C-p Hsieh C Rungkat	4	4				2	H-h Lee H-y Peng	7	4
	2	H-h Lee H-y Peng	6	6

References

• Main draw

• 2012 Keio Challenger