Matteo Arnaldi and Daniel Altmaier will play each other in the 1st round of the Citi Open for the 1st time in their career. They are scheduled to play on Monday at 11:00 am on Grandstand. In the following lines you can find the head to head analysis and prediction.

Prediction, odds and live streaming

The pick for Tennis Tonic is Matteo Arnaldi who should win in 3 sets.

See updated oddsAs per the initial odds, Matteo Arnaldi is the pick to win this match.
Matteo Arnaldi -> 1.48
Daniel Altmaier -> 2.65

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Prediction and head to head Matteo Arnaldi vs. Daniel Altmaier

There is no head to head record between Matteo Arnaldi and Daniel Altmaier since this will be the first time that they will square off in the main tour.

Matteo Arnaldi

Matteo Arnaldi

16 - 15win/loss

Hard
7-6
I Hard
2-1
Clay
7-6
Grass
0-2
Rank
37
High
30
LLWLWWLLLW
Year Total Hard Clay I.hard Grass Carpet
2025 18-18 9-9 7-6 2-1 0-2 0-0
2024 29-26 17-13 10-9 1-2 1-2 0-0
2023 51-26 21-15 23-7 4-3 3-1 0-0
2022 50-35 9-3 37-20 4-11 0-1 0-0
2021 56-24 2-1 51-18 3-5 0-0 0-0

Ranked no. 44, the Italian will start his run in Washington after he played his last match at Wimbledon where he lost 7-6(4) 7-6(5) 6-4 to Van De Zandschulp in the 1st round on the 1st of July.

Matteo has an overall 15-15 win-loss record in 2025, 6-6 on hard (See FULL STATS).

The Italian’s best result of the current season was getting to the semifinal in Delray Beach.

Talking about his overall career, The Italian has an overall 231-149 record. He has a positive 80-47 record on hard.

Previously in Washington

Arnaldi has never competed in this tournament before.

Washington
Arnaldi's Record

Daniel Altmaier

Daniel Altmaier

25 - 25win/loss

Hard
6-10
I Hard
5-4
Clay
13-8
Grass
1-3
Rank
60
High
47
LLLLWLLWLL
Year Total Hard Clay I.hard Grass Carpet
2025 25-27 6-12 13-8 5-4 1-3 0-0
2024 30-34 5-9 19-20 5-4 1-1 0-0
2023 32-31 8-13 21-10 2-5 1-3 0-0
2022 34-31 10-14 22-12 0-1 2-4 0-0
2021 49-27 7-3 36-20 5-2 1-2 0-0

Ranked no. 56, Altmaier will start his run in Washington after he played his last match in Los Cabos where he lost 6-3 6-4

to Schoolkate in the 2nd round on the 16th of July.

Altmaier has a compiled 25-24 win-loss record in 2025, 6-9 on hard (See FULL STATS).

Altmaier’s best result of the season was getting to the semifinal in the Turin Challenger.

In terms of his career, The German has an overall 415-279 record. He has a positive 132-85 record on hard.

Washington
Altmaier's Record

Tennis Scores in Washington

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