Part of: US Open, Qualification WTA: Elvina Kalieva vs Sofia Costoulas

US Open, Qualification WTA: Elvina Kalieva vs Sofia Costoulas

This market refers to the tennis match between Elvina Kalieva and Sofia Costoulas in the US Open, Qualification WTA, originally scheduled for August 26, 2026 at 5:00PM ET. This market will resolve to 'Elvina Kalieva' if Elvina Kalieva advances against Sofia Costoulas. This market will resolve to 'Sofia Costoulas' if Sofia Costoulas advances against Elvina Kalieva. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 9, 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.

5 smart money signals detected, totaling $16,158.

Categories: Tennis, Sports, Games

Notable Trades

Sharp bettor scaling into Kalieva

A proven sharp bettor with an 88% win rate and substantial positive edge is adding to an existing Elvina Kalieva position while maintaining a serial cross-market record.

This bettor wins 88% of 144 resolved trades and is up $135,194 lifetime.
The $3,553 purchase adds to an existing $8,988 Kalieva position, signaling continued conviction despite the price falling from 71¢ to 66¢.
They have traded 60 markets across 58 events, giving this position broader context than a one-off wager.

$3,553 on Elvina Kalieva | Wallet win rate: 88%

New whale scaling into Sofia

A nine-hour-old repeat bettor is scaling into Sofia Costoulas with a large position in a thinly traded match market, though there is no resolved track record yet.

This wallet is less than 10 hours old but has already made five flagged bets across seven positions totaling $9,218.
It added $2,417 to Sofia Costoulas at 50¢ after already investing $5,520 in the same outcome.
The bet is nearly twice the market’s entire 24-hour volume of $1,252, signaling notable conviction in a quiet market.

$1,942 on Sofia Costoulas | Wallet win rate: 76%

New whale scaling into Sofia

A nine-hour-old repeat bettor is scaling into Sofia Costoulas with a large position in a thinly traded match market, though there is no resolved track record yet.

This wallet is less than 10 hours old but has already made five flagged bets across seven positions totaling $9,218.
It added $2,417 to Sofia Costoulas at 50¢ after already investing $5,520 in the same outcome.
The bet is nearly twice the market’s entire 24-hour volume of $1,252, signaling notable conviction in a quiet market.

$2,122 on Sofia Costoulas | Wallet win rate: 76%

Three-wallet Kalieva accumulation

Three wallets, including two highly profitable bettors, simultaneously added $6,125 to Kalieva despite the price later falling to 46%.

Three wallets bought Kalieva within one second, committing $6,125 at 50%.
Two participants have extensive profitable histories, including one up $6.6 million across 24,431 resolved bets.
Two wallets were adding to existing Kalieva positions, signaling increased conviction even after the market moved down to 46%.

$6,125 on Elvina Kalieva

New whale scaling into Sofia

A nine-hour-old repeat bettor is scaling into Sofia Costoulas with a large position in a thinly traded match market, though there is no resolved track record yet.

This wallet is less than 10 hours old but has already made five flagged bets across seven positions totaling $9,218.
It added $2,417 to Sofia Costoulas at 50¢ after already investing $5,520 in the same outcome.
The bet is nearly twice the market’s entire 24-hour volume of $1,252, signaling notable conviction in a quiet market.

$2,417 on Sofia Costoulas | Wallet win rate: 76%