2018 Keio Challenger

Marin and Tomislav Draganja were the defending champions but chose not to defend their title.

Men's doubles

Final

Champions

Runners-up

Score

3–6, 7–5, [12–10]

Events

Singles	men	women
Doubles	men	women

← 2017 ·

Keio Challenger

· 2019 →

Tobias Kamke and Tim Pütz won the title after defeating Sanchai and Sonchat Ratiwatana 3–6, 7–5, [12–10] in the final.

Seeds edit

First round					Quarterfinals					Semifinals					Final

1	Sa Ratiwatana So Ratiwatana	6	6
WC	S Hazawa M Imamura	3	4		1	Sa Ratiwatana So Ratiwatana	6	7
	Z Li S Robert	6	4	[0]		M Purcell A Whittington	3	5
	M Purcell A Whittington	3	6	[10]						1	Sa Ratiwatana So Ratiwatana	5	6	[10]
4	T Matsui C-h Yi	6	2							WC	T Ito K Uesugi	7	2	[6]
Q	M Donati E Leshem	1	1^r		4	T Matsui C-h Yi	7⁹	5	[8]
WC	T Ito K Uesugi	6	6		WC	T Ito K Uesugi	6⁷	7	[10]
WC	Masahiro Fukuda Eiji Yamasaki	2	3												1	Sa Ratiwatana So Ratiwatana	6	5	[10]
	T Altuna H Hurkacz	4	2													T Kamke T Pütz	3	7	[12]
	C Rungkat Ze Zhang	6	6			C Rungkat Ze Zhang	6	6
	B Klein L Margaroli	7⁷	6⁵	[6]	3	H-y Peng A Siljeström	2	2
3	H-y Peng A Siljeström	6²	7⁷	[10]							C Rungkat Ze Zhang	3	3
	M Gong C-p Hsieh	6	7⁷								T Kamke T Pütz	6	6
	T Chen J Jung	3	6⁵			M Gong C-p Hsieh	6¹	6³
	T Kamke T Pütz	6	6			T Kamke T Pütz	7⁷	7⁷
2	S Balaji Y Uchiyama	4	3