Hiromasa Koyama enters the first-round matchup at the M15 Harmon on outdoor hard courts in Guam holding the higher ATP ranking near 1364 and stronger recent form, including a semifinal run at the preceding M15 Karuizawa event where he secured multiple straight-set victories on clay. The 18-year-old Japanese player has compiled a solid 2026 record across surfaces, with notable hard-court experience. Adrian Arcon, ranked around 1545, arrives after advancing through qualifying with a straight-sets win over Leo Hsu, though his overall 2026 results remain more mixed on hard courts. No prior head-to-head exists between the competitors, and both compete in a low-stakes ITF Futures setting where consistent serve and baseline play on the fast surface typically decide early-round outcomes.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHiromasa Koyama – Adrian Arcon
Moneyline
$913 Vol.
This market will resolve to 'Hiromasa Koyama' if Hiromasa Koyama advances against Adrian Arcon.
This market will resolve to 'Adrian Arcon' if Adrian Arcon advances against Hiromasa Koyama.
If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50.
If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.
If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.
The primary resolution source will be official information from the International Tennis Federation (ITF). A consensus of credible reporting may also be used.
Market Opened: Jun 2, 2026, 6:00 AM ET
Resolution Source
https://www.itftennis.com/en/tournament-calendar/Resolver
0x65070BE91...Hiromasa Koyama – Adrian Arcon
Moneyline
$913 Vol.
This market will resolve to 'Hiromasa Koyama' if Hiromasa Koyama advances against Adrian Arcon.
This market will resolve to 'Adrian Arcon' if Adrian Arcon advances against Hiromasa Koyama.
If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50.
If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.
If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.
The primary resolution source will be official information from the International Tennis Federation (ITF). A consensus of credible reporting may also be used.
Market Opened: Jun 2, 2026, 6:00 AM ET
Resolution Source
https://www.itftennis.com/en/tournament-calendar/Resolver
0x65070BE91...Hiromasa Koyama enters the first-round matchup at the M15 Harmon on outdoor hard courts in Guam holding the higher ATP ranking near 1364 and stronger recent form, including a semifinal run at the preceding M15 Karuizawa event where he secured multiple straight-set victories on clay. The 18-year-old Japanese player has compiled a solid 2026 record across surfaces, with notable hard-court experience. Adrian Arcon, ranked around 1545, arrives after advancing through qualifying with a straight-sets win over Leo Hsu, though his overall 2026 results remain more mixed on hard courts. No prior head-to-head exists between the competitors, and both compete in a low-stakes ITF Futures setting where consistent serve and baseline play on the fast surface typically decide early-round outcomes.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedBeware of external links.
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