Nikoloz Basilashvili and Gauthier Onclin will face off in the qualifications of the U.S. Open for the 1st time in their career. They are scheduled to play on Monday at 3:00 pm on Court 4. In this post, we analyze their head to head performance and prediction.

Prediction, odds and live streaming

The pick for Tennis Tonic is Nikoloz Basilashvili who should win in 4 sets.

As per the initial odds, Nikoloz Basilashvili is the pick to win this match.
Nikoloz Basilashvili -> 1.333
Gauthier Onclin -> 3.2

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Prediction and head to head Nikoloz Basilashvili vs. Gauthier Onclin

There is no head to head record between Nikoloz Basilashvili and Gauthier Onclin since this will be the first time that they will clash against each other in the main tour.

Nikoloz Basilashvili

Nikoloz Basilashvili

31 - 23win/loss

Hard
11-8
I Hard
6-2
Clay
9-10
Grass
5-3
Rank
110
High
16
LWWWLWWLWL
Year Total Hard Clay I.hard Grass Carpet
2025 41-29 18-13 9-10 9-3 5-3 0-0
2024 51-32 11-8 27-15 13-9 0-0 0-0
2023 4-19 1-8 0-5 3-6 0-0 0-0
2022 16-31 3-11 5-9 4-7 4-4 0-0
2021 35-27 18-11 8-8 3-5 6-3 0-0

Ranked no. 112, Nikoloz will start his run at the U.S. Open after he played his last match in the Sumter Challenger where he lost 3-6 7-6(3) 4-1 ret. to Shevchenko in the quarter on the 15th of August.

Basilashvili has a compiled 30-23 win-loss record in 2025, 10-8 on hard (See FULL STATS).

Nikoloz’s best result of the season was reaching the final in the Bordeaux Challenger.

Talking about his overall career, Basilashvili has an overall 473-414 record. He has a positive 186-163 record on hard.

Previously at the U.S. Open

Previously, his best result was reaching the 4th round in 2018. See his history.

U.S. Open
Basilashvili's Record

Gauthier Onclin

Gauthier Onclin

23 - 19win/loss

Hard
3-3
I Hard
1-4
Clay
18-11
Grass
1-1
Rank
230
High
192
LLLLLLWLWL
Year Total Hard Clay I.hard Grass Carpet
2025 28-29 8-9 18-11 1-8 1-1 0-0
2024 56-27 27-11 19-13 10-3 0-0 0-0
2023 40-25 1-2 15-10 23-11 1-2 0-0
2022 54-26 10-8 36-15 8-3 0-0 0-0
2021 32-23 18-6 10-13 0-2 0-0 4-2

Ranked no. 215, Onclin will start his run at the New York after he played his last match in the Grodzisk Mazowiecki Challenger where he lost 6-2 6-4 to Prizmic in the 1st round on the 4th of August.

The Belgian has an aggregate 23-18 win-loss record in 2025, 3-2 on hard (See FULL STATS).

Onclin’s best result of the season was reaching the final in M25 Santa Margherita di Pula.

In terms of his career, Gauthier has an overall 234-140 record. He has a positive 80-45 record on hard.

U.S. Open
Onclin's Record

Upcoming matches in the draw