Oeiras 1 ATP Challenger 100 2026 Tennis Tournament | ITF
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Oeiras 1 ATP Challenger 100

Dates: 19 Jan - 25 Jan 2026
Host nation: Portugal
Hospitality: Yes
Surface: Hard - I
Date: 19 Jan, 2026
Host nation: Portugal
Hospitality: Yes
Surface: Hard - I
Grade: 4.03