What is the Osaka vs Mertens prediction market?

It is a sports prediction market on whether Naomi Osaka or Elise Mertens will advance in their 2026 US Open WTA match.

When is Naomi Osaka vs Elise Mertens scheduled?

The match is scheduled for September 4, 2026, at 11:00 AM ET.

How does the Osaka vs Mertens market resolve?

The market resolves to Naomi Osaka if she advances and to Elise Mertens if she advances. If the match is canceled, ends in a tie, or no winner is determined by the stated deadline, the exchange’s resolution rules apply.

What smart money activity has been reported?

PolySpotter tracks $24,410 in smart money for this market, with recent signals showing activity from bettors backing both Elise Mertens and Naomi Osaka.

Part of: US Open WTA: Naomi Osaka vs Elise Mertens

US Open WTA: Naomi Osaka vs Elise Mertens

This prediction market covers the 2026 US Open WTA match between Naomi Osaka and Elise Mertens, scheduled for September 4, 2026. It resolves to Osaka or Mertens depending on which player advances, with cancellation or an unresolved result handled under the market rules. PolySpotter tracks $24,410 in smart money and recent signals on both players.

9 smart money signals detected, totaling $189,874.

Categories: Tennis, Sports, Games

Notable Trades

Sharp cluster piling into Mertens

Six wallets added $24.4K to Elise Mertens, including highly profitable bettors with strong historical edges, while her price surged nearly 20 percentage points.

Six wallets placed $24,410 on Elise Mertens, with several adding to existing positions rather than making a one-off bet.
The strongest participants include a bettor with a 95% win rate over 79 bets and another with a 77% win rate over 373 bets.
Mertens rose 19.5 percentage points in about four minutes, corroborating the concentrated buying pressure.

$24,410 on Elise Mertens

95% winner adds to Mertens

A highly proven serial bettor with a 95% win rate added $10,000 to Elise Mertens despite the market later falling to 42%.

This bettor has won 95% of 79 resolved positions and is up $212,462 lifetime.
They added $10,000 to Elise Mertens at 52%, increasing an existing position despite the market now pricing her at 42%.
The trade occurred during a 30.5x volume spike, while Elise’s price fell 18.28% afterward.

$10,000 on Elise Mertens | Wallet win rate: 96%

Sharp bettor scaling into Osaka

A highly profitable bettor with 78% wins and a substantial edge is adding to an existing Naomi Osaka position while maintaining a broad serial cross-market record.

This bettor wins 78% of 1,064 resolved trades and is up $223,611 lifetime.
They are adding $3,911 to Naomi Osaka after already investing $6,462 at the same 61¢ average entry.
The wallet has traded across 38 events for $91,884, indicating a repeatable cross-market process rather than a one-off wager.

$3,911 on Naomi Osaka | Wallet win rate: 79%

89% serial bettor scaling Osaka

A serial cross-market bettor with an 89% win rate is adding $10,032 to an existing Naomi Osaka position at 76%, making this a meaningful conviction trade despite the modest composite score.

This bettor has won 89% of 235 resolved trades across 142 markets and is up $80,251.
They added $10,032 to an existing Osaka position at 76%, showing increased conviction rather than routine profit-taking.
The bet represented 61% of the market’s 24-hour volume, making the position unusually influential.

$11,352 on Naomi Osaka | Wallet win rate: 89%

Sharp bettor scales into Osaka

A proven serial sports trader with a 79% win rate is adding $26.8K to an existing Naomi Osaka position at 87¢.

This bettor wins 79% of resolved trades and is up nearly $267,000 overall.
They are adding $26,780 to an existing $50,000 Osaka position, signaling increased conviction.
The 87¢ entry is supported by a 16-point one-day price rise, though Osaka is already priced as a strong favorite.

$26,780 on Naomi Osaka | Wallet win rate: 83%

Profitable whale scales into Osaka

A highly profitable serial trader added another $37,381 to an already large Naomi Osaka position in a relatively quiet market.

This trader is up $5.55 million across 223 resolved bets and has made 125 cross-market calls.
They added $37,381 to an existing $112,889 Osaka position, signaling increased conviction at 75¢.
The purchase was more than 4,000% of the reported 24-hour volume, making it a notable concentrated bet.

$18,240 on Naomi Osaka | Wallet win rate: 57%

89% serial bettor scaling Osaka

A serial cross-market bettor with an 89% win rate is adding $10,032 to an existing Naomi Osaka position at 76%, making this a meaningful conviction trade despite the modest composite score.

This bettor has won 89% of 235 resolved trades across 142 markets and is up $80,251.
They added $10,032 to an existing Osaka position at 76%, showing increased conviction rather than routine profit-taking.
The bet represented 61% of the market’s 24-hour volume, making the position unusually influential.

$10,032 on Naomi Osaka | Wallet win rate: 89%

Profitable whale scales into Osaka

A highly profitable serial trader added another $37,381 to an already large Naomi Osaka position in a relatively quiet market.

This trader is up $5.55 million across 223 resolved bets and has made 125 cross-market calls.
They added $37,381 to an existing $112,889 Osaka position, signaling increased conviction at 75¢.
The purchase was more than 4,000% of the reported 24-hour volume, making it a notable concentrated bet.

$47,768 on Naomi Osaka | Wallet win rate: 57%

Profitable whale scales into Osaka

A highly profitable serial trader added another $37,381 to an already large Naomi Osaka position in a relatively quiet market.

This trader is up $5.55 million across 223 resolved bets and has made 125 cross-market calls.
They added $37,381 to an existing $112,889 Osaka position, signaling increased conviction at 75¢.
The purchase was more than 4,000% of the reported 24-hour volume, making it a notable concentrated bet.

$37,381 on Naomi Osaka | Wallet win rate: 57%

Top Holders

0x709e...66f5 — Outcome 92249679, $23,874 (48% win rate)
0x927c...6633 — Outcome 92249679, $19,200 (91% win rate)
0x7568...2ce1 — Outcome 92249679, $19,129 (96% win rate)
0xf68a...5b1b — Outcome 92249679, $17,500 (54% win rate)
0x21f3...35e3 — Outcome 92249679, $16,446 (74% win rate)
0x8c81...dcd3 — Outcome 92249679, $16,000 (79% win rate)
0xfbf3...b218 — Outcome 92249679, $13,254 (46% win rate)
0xe954...1ef1 — Outcome 92249679, $9,687 (91% win rate)
0x4afb...ed2b — Outcome 92249679, $9,000 (48% win rate)
0xed54...7c7e — Outcome 92249679, $5,000 (75% win rate)

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US Open WTA: Naomi Osaka vs Elise Mertens

ResolvedUS Open WTA: Naomi Osaka vs Elise Mertens$189,874 tracked9 signalsTennisSportsGames

This market refers to the tennis match between Naomi Osaka and Elise Mertens in the US Open WTA, originally scheduled for September 4, 2026 at 11:00AM ET. This market will resolve to 'Naomi Osaka' if Naomi Osaka advances against Elise Mertens. This market will resolve to 'Elise Mertens' if Elise Mertens advances against Naomi Osaka. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 18, 2026, 11:59 PM ET (14 days after the scheduled start), 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 WTA Tour. A consensus of credible reporting may also be used.