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ATPHardTokyo · 1/16-finals2026-09-30 03:00

Matteo Arnaldi v Rei Sakamoto

Match preview, prediction and odds

Our pick

StrongLOST
R. Sakamoto to win1.70
Worth backing at 1.59 or bigger · our chance 63% · market 44/56, us 37/63

R. Sakamoto is 6-4 over the last ten and 27-16 on hard this season. M. Arnaldi is 3-7 over the last ten and 2-8 on hard this season. The head to head is M. Arnaldi 1-0.

The pick is R. Sakamoto to win. We make it a 63% chance, so it is only worth backing at 1.59 or bigger.

An opinion from the numbers, not a guarantee. 19+, bet responsibly.

Key numbers

M. ArnaldiR. Sakamoto
106Ranking200
3-7Last 106-4
LLLWLLast 5WLLWW
-2.3V the odds-0.1
18-16Season35-21
2-8Hard 202627-16
0Last 7 days0
30dDays rest11d
0Wins here0
30d outFitnessClear
Head to head
1-0

V the odds: wins above (or below) what the prices expected over the last 10 - form with the strength of the opposition built in.

The market

M. Arnaldi2.2443%
R. SakamotoFAV1.7257%
Market says57% Sakamoto

Percentages are the implied chance of winning with the bookmaker's margin removed.

Recent form

Last five completed matches, most recent first.

Head to head

M. Arnaldi2
R. Sakamoto0
Head to head2 meetings
DateEventMatchScore
2026-09-30TokyoM. ArnaldivR. Sakamoto2 - 1
2025-10-02ShanghaiM. ArnaldivR. Sakamoto2 - 0

This season & this event

M. Arnaldi
R. Sakamoto
19-16
3-8
Did not play
Lost R32 to T. Paul
2026 record
2026 on hard
Here in 2025
Here in 2024
35-22
27-17
Did not play
Did not play

Ranking points fall off a year after they are earned, so a player who went deep here last year must match it or drop in the rankings. That shapes effort in a way the price does not always show.

The players

Matteo Arnaldi
Italy
Rei Sakamoto
Japan
106
25
Italy
7–8
1
1–3
6–5
—
Ranking
Age
Country
2026 W/L
Titles
Hard
Clay
Grass
200
20
Japan
0–1
0
0–1
—
—

Ranking, record and surface splits are for the most recent season on file. Height, weight and handedness are not published by our data provider.

M. Arnaldi — last 10

With the pre-match price we recorded at the time.

DateEventSurfaceOpponentScoreTheir priceMarketResult
2026-09-30TokyoHardR. Sakamoto2 - 12.2457%WON
2026-08-31US OpenHardJ. Duckworth1 - 31.6160%LOST
2026-08-15CincinnatiHardM. Landaluce2 - 12.1855%LOST
2026-08-07MontrealHardT. Griekspoor2 - 12.8466%LOST
2026-08-05MontrealHardF. Marozsan1 - 22.3058%WON
2026-07-27WashingtonHardL. Musetti0 - 1 RET2.4460%LOST
2026-07-16UmagclayD. Dzumhur2 - 11.4866%LOST
2026-07-15UmagclayF. A. Gomez1 - 21.2677%WON
2026-06-30WimbledonGrassQ. Halys1 - 32.2056%LOST
2026-06-23EastbourneGrassG. Hussey0 - 21.2975%LOST

R. Sakamoto — last 10

With the pre-match price we recorded at the time.

DateEventSurfaceOpponentScoreTheir priceMarketResult
2026-09-30TokyoHardM. Arnaldi2 - 11.7257%LOST
2026-09-19ATP Davis Cup - World Group I- PreliminaryA. Shepp0 - 21.1383%WON
2026-09-08ShanghaiHardS. Nam Ji0 - 21.0690%LOST
2026-09-02US OpenHardF. Tiafoe0 - 34.1476%LOST
2026-08-31US OpenHardA. Vukic2 - 31.6957%WON
2026-08-27US OpenHardK. Nishikori0 - 21.5960%WON
2026-08-26US OpenHardA. Muller2 - 01.4964%WON
2026-08-25US OpenHardJ. Clarke1 - 21.2674%WON
2026-08-20Quebec City (Canada) - QualificationHardL. van Assche1 - 22.4460%LOST
2026-08-18Quebec City (Canada) - QualificationHardJ. Rodionov0 - 21.8054%WON

Common questions

Who is favourite, Matteo Arnaldi or Rei Sakamoto?

Rei Sakamoto is favourite at 1.72, which is a 57% chance once the bookmaker's margin is removed.

What are the odds for Matteo Arnaldi vs Rei Sakamoto?

Matteo Arnaldi is 2.24 and Rei Sakamoto is 1.72, the prices we recorded for the Tokyo match.

What is the head-to-head between Matteo Arnaldi and Rei Sakamoto?

They have met 2 times and Matteo Arnaldi leads 2-0.

Who will win Matteo Arnaldi vs Rei Sakamoto?

Our model makes it Rei Sakamoto to win at 1.70 (Strong confidence).

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