Casper Ruud vs. Shintaro Mochizuki Preview, Prediction, and Betting Odds for Japan Open 2025 Round – 1

Ruud’s experience clashes with Mochizuki’s rising form in Japan Open 2025

Fourth seed Casper Ruud is set to kick off his Japan Open 2025 campaign against wildcard Shintaro Mochizuki. Ruud arrives fresh from the Laver Cup, where Team Europe fell short, but he impressed individually (and in doubles too) with a straight-sets victory over Reilly Opelka, showing that his form remains sharp.

The Norwegian’s season has been a rollercoaster. He captured the Madrid title in a thrilling three-set victory over Jack Draper, reached the finals in Dallas before falling to Denis Shapovalov, and made quarterfinal appearances in Barcelona, Rome, and Gstaad. Across the season, Ruud has fired 225 aces, won 71% of his first-serve points, claimed 30% of return points, and converted 38% of 278 break point opportunities, underscoring his consistent attacking game.

Alcaraz and Ruud beat Alex Michelsen and Reilly Opelka 7-6 6-1 at the Laver Cup

Carlos & Casper give Team Europe a very important start on the final day of the tournament.

Team Europe now trails Team World 6-9.

Leave it to Ruudcadaz. 🇪🇸🇳🇴 pic.twitter.com/Kwc85XcrK8
— The Tennis Letter (@TheTennisLetter) September 21, 2025

Mochizuki, who turned pro in 2019, is steadily making his mark on the tour. He has claimed seven ITF doubles titles, four Challenger singles titles, and one doubles title, and reached a career-high ranking of No. 104 just two weeks ago. This season, he lifted the Challenger Noumea title, reached finals in Challenger Bengaluru and Nottingham II, and advanced to the second rounds at Wimbledon and the US Open, marking his best Grand Slam performances. Mochizuki has hit 25 aces, won 71% of first-serve points, 32% of return points, and converted 35% of 66 break points.

Final 4️⃣ 🔜

Shintaro Mochizuki reaches his fifth semifinal of the year, battling past Misolic 6-4, 4-6, 6-4 in Sumter#ATPChallenger pic.twitter.com/I0oNsRfS1s
— ATP Challenger Tour (@ATPChallenger) August 15, 2025

Casper Ruud vs. Shintaro Mochizuki Head-to-Head Record

Casper Ruud and Shintaro Mochizuki do not have a head-to-head yet.

Casper Ruud vs. Shintaro Mochizuki Comparison

Casper Ruud	Category	Shintaro Mochizuki
12	Current Ranking	105
287-152	Career W-L	5-23
29-12	YTD W-L	2-4
13	Career Titles	0
0	Grand Slams	0
1	YTD Titles	0

Casper Ruud vs. Shintaro Mochizuki Prediction

Casper Ruud’s experience and recent form make him the likely winner, but Mochizuki’s home advantage and rising momentum could make it a competitive match. Regardless, the Norwegian has the edge.

Carlos Alcaraz with the most outrageous drop volley!

Yannick Noah and Casper Ruud started praying 😭 pic.twitter.com/XPhu2bv3VQ
— Bastien Fachan (@BastienFachan) September 21, 2025

Prediction: Casper Ruud in straight sets

FanDuel

High total bonus ceiling

Daily second-chance bet protection

No promo code required

$150

Welcome offer

Bet $5 & Get $150 in Bonus Bets

Click to reveal code

COPIED

F A N D U V I P

Claim now

New customers only. Must be 21+ in most jurisdictions, but 18+ in DC, KY, and WY. Offer is valid only in eligible regulated states/jurisdictions and not available in AR; void where prohibited. First online real-money wager only; cashed-out or bonus-funded bets are excluded.

Casper Ruud vs. Shintaro Mochizuki Japan Open 2025 Betting Odds

With Ruud at -340 and Mochizuki at +260, the moneyline heavily favors Ruud, suggesting a straight-sets win is most probable, though an upset is possible if Mochizuki serves exceptionally well.

Here are the betting odds according to FanDuel:

Casper Ruud: -340

Shintaro Mochizuki: +260

Here are the odds for total games as well as total sets for both players (sourced via FanDuel):

Set 1 Winner Ruud: -220

Set 1 Winner Mochizuki: +176

Set 2 Winner Ruud: -250

Set 2 Winner Mochizuki: +200

(According to FanDuel: FanDuel offers exclusive promo codes, bonus deals and accurate odds for users upon signing up. Use FanDuel to ace your betting game in all sports!)

Mandatory Image Credit: Geoff Burke-Imagn Images

Rudra Dubey

nfl

mma

I’m an academic turned sports writer from Raipur, India, specializing in the NFL, MMA, and tennis at The Playoffs. I previously wrote for Sportskeeda and hold a B.A. and M.A. in History. My journey into sports media began far from the field, rooted in the arts and sciences. Funny enough, I didn’t grow up a sports fan; I used to see it all as just noise. But a fateful writing job introduced me to the world of sports, and what began as a gig quickly became a passion. I understood those voices aren’t noise; they’re emotions of true sports fans, and now I am one of them, writing with the same energy I once questioned.