Shintaro Mochizuki and Alex Rybakov will face off in the 1^st round of the Sumter Challenger for the 1^st time in their career. They are scheduled to compete on Tuesday at 3:30 pm on STADIUM. 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 Shintaro Mochizuki who should win in 2 sets.

As per the initial odds, Shintaro Mochizuki is the pick to win this match.
Shintaro Mochizuki -> 1.36
Alex Rybakov -> 2.94

Click here to see the updated quotes and live streaming (only selected countries - USA excluded).

To be able to watch live streaming bet365, a funded account is required or you need to have placed a bet in the last 24 hours. 18+ BeGambleAware.

Here where top tennis events are broadcasted or streamed online (ATP, WTA).

At the challenger level, there will be free live streaming on Challenger TV.

Prediction and head to head Shintaro Mochizuki vs. Alex Rybakov

There is no head to head record between Shintaro Mochizuki and Alex Rybakov since this will be the first time that they will fight against each other in the main tour.

Shintaro Mochizuki

30 - 20win/loss

Hard

17-11

I Hard

0-0

Clay

2-6

Grass

11-3

Rank
94

High
92

LLLWLLWWLW

See allSTATS

Year	Total	Hard	Clay	I.hard	Grass	Carpet
2025	43-31	27-16	2-6	3-6	11-3	0-0
2024	28-33	19-22	7-5	0-1	2-5	0-0
2023	41-33	22-16	13-8	2-5	4-4	0-0
2022	37-34	18-17	13-12	6-5	0-0	0-0
2021	35-30	11-10	18-11	5-7	1-1	0-1

See all years

Ranked no. 120 (career-high), Shintaro will start his run in the Sumter Challenger after he played his last match in Cincinnati where he lost 7-6(5) 6-3 to Lam Coleman Wong in the qualifications on the 6^th of August.

Mochizuki has a compiled 30-20 win-loss record in 2025, 17-11 on hard (See FULL STATS).

His best result of the year was winning the title the Noumea Challenger where he defeated Moerani Bouzige in the final 6-1 6-3.

Talking about his overall career, The Japanese has an overall 205-173 record. He has a positive 113-96 record on hard.

Previously in the Sumter Challenger

Shintaro has never competed in this tournament before.

Sumter Challenger

Mochizuki's Record

Alex Rybakov

41 - 17win/loss

Hard

19-8

I Hard

14-3

Clay

8-6

Rank
280

High
261

LLLLLWWWWL

See allSTATS

Year	Total	Hard	Clay	I.hard	Grass	Carpet
2025	47-26	24-13	8-6	15-7	0-0	0-0
2024	29-20	11-8	12-8	6-4	0-0	0-0
2023	22-25	5-8	7-9	10-8	0-0	0-0
2022	30-23	5-7	20-12	5-4	0-0	0-0
2021	39-26	4-4	35-22	0-0	0-0	0-0

See all years

Ranked no. 311, the American will start his run in the Sumter Challenger after he played his last match in the Chicago Challenger where he lost 6-2 6-3

to Banerjee in the 1^st round on the 5^th of August.

The American has an aggregate 41-17 win-loss record in 2025, 19-8 on hard (See FULL STATS).

Rybakov’s best result of the current season was getting to the final in M15 Montreal,M25 Bakersfield,M25 Pensacola,M25 Tulsa and M25 Dallas.

In terms of his career, The American has an overall 262-176 record. He has a positive 95-72 record on hard.

Sumter Challenger

Rybakov's Record

Upcoming matches in the draw

Nikoloz BasilashviliBasilashvili – Christopher EubanksEubanks (4-0) – H2H and prediction
Yoshihito NishiokaNishioka – Sho ShimabukuroShimabukuro (0-0) – H2H and prediction
Borna GojoGojo – Strong KirchheimerKirchheimer (1-0) – H2H and prediction
Hady HabibHabib – (0-2) – H2H and prediction
James Kent TrotterKent Trotter – (0-1) – H2H and prediction
Jacob FearnleyFearnley – (0-0) – H2H and prediction