Singles | |
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2012 All Japan Indoor Tennis Championships | |
Champion |
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Runner-up |
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Final score | 6–7(5–7), 6–1, 6–2 |
Dominik Meffert was the defending champion but decided not to participate.
Tatsuma Ito won the title, defeating Malek Jaziri 6–7(5–7), 6–1, 6–2 in the final.