This market refers to the tennis match between Janice Tjen and Dayana Yastremska in the Monterrey Open, originally scheduled for August 24, 2026 at 12:00PM ET.
This market will resolve to 'Janice Tjen' if Janice Tjen advances against Dayana Yastremska.
This market will resolve to 'Dayana Yastremska' if Dayana Yastremska advances against Janice Tjen.
If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 7, 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.
Monterrey Open: Janice Tjen vs Dayana Yastremska
WTA
Dayana Yastremska
0-0
–
vs
24/08 22:30
–
Janice Tjen
0-0
Game context
Janice Tjen enters the Monterrey Open first-round matchup against Dayana Yastremska as the higher-ranked player at No. 37 and the No. 7 seed on outdoor hard courts, following a 2025 breakout that included a WTA title and strong doubles results. Tjen holds a 10-21 singles record in 2026 but defeated Yastremska convincingly in straight sets during their prior meeting in Dubai earlier this year. Yastremska, ranked No. 107 with a 16-17 mark, captured a WTA 125 title in Parma but has struggled recently, including a first-round loss in Cincinnati. Surface familiarity, Tjen’s seeding advantage, and head-to-head history shape trader consensus on the hard-court encounter, though Yastremska’s power game offers upset potential in a WTA 500 draw.
Moneyline
$3.2K Vol.Match Completed
Set Total
Monterrey Open: Janice Tjen vs Dayana Yastremska Set 2 O/U 8.5
Monterrey Open: Janice Tjen vs Dayana Yastremska Total Sets: O/U 2.5
Monterrey Open: Janice Tjen vs Dayana Yastremska Set 2 O/U 9.5
Monterrey Open: Janice Tjen vs Dayana Yastremska Set 2 O/U 10.5
1st Set Winner
1st Set Total
Monterrey Open: Janice Tjen vs Dayana Yastremska Set 1 O/U 8.5
Monterrey Open: Janice Tjen vs Dayana Yastremska Set 1 O/U 9.5
Monterrey Open: Janice Tjen vs Dayana Yastremska Set 1 O/U 10.5
Set Winner
Total Games
$7 Vol.Monterrey Open: Janice Tjen vs Dayana Yastremska Match O/U 21.5
Monterrey Open: Janice Tjen vs Dayana Yastremska Match O/U 22.5
Monterrey Open: Janice Tjen vs Dayana Yastremska Match O/U 23.5
Set Handicap
$27 Vol.More Bets
Resolution Source: www.wtatennis.com
Odds & FAQ
What are the current odds for Monterrey Open: Janice Tjen vs Dayana Yastremska?
No runaway leader here - Monterrey Open: Janice Tjen vs Dayana Yastremska Set 2 Winner at 60% versus Monterrey Open: Janice Tjen vs Dayana Yastremska Set 1 O/U 10.5 at 59%. Traders are split, so watch the live prices.
What do traders predict for Monterrey Open: Janice Tjen vs Dayana Yastremska?
Traders give Monterrey Open: Janice Tjen vs Dayana Yastremska Set 2 Winner a 60% chance - essentially a toss-up. In markets this tight, the implied odds can swing on a single piece of news.
When does the Monterrey Open: Janice Tjen vs Dayana Yastremska market resolve?
Mark 31 Aug 2026 (8 days left): that's when this market is due to resolve, following Polymarket's published criteria once the result is verified.
How much money is trading on Monterrey Open: Janice Tjen vs Dayana Yastremska?
Total turnover stands at $4.2M. Volume shows conviction: these odds are backed by actual positions, not polls.
How can I trade Monterrey Open: Janice Tjen vs Dayana Yastremska on Polymarket?
You can watch the odds move here in real time and trade the market directly on Polymarket. As always, prediction trading carries real risk.
Similar Markets
Completed Match99%YesNo
Monterrey Open: Lilli Tagger vs Yulia Starodubtseva Set 2 O/U 8.599%YesNo
Winston-Salem Open: Pablo Carreno Busta vs Adolfo Vallejo Set 1 O/U 8.599%YesNo
Winston-Salem Open: Pablo Carreno Busta vs Adolfo Vallejo Set 1 O/U 9.599%YesNo
Carlos Alcaraz34%YesNo
Alexander Zverev20%YesNo
Completed Match99%YesNo
Monterrey Open, Qualification: Maria Timofeeva vs Kamilla Rakhimova Set 2 Winner99%YesNo
Aryna Sabalenka23%YesNo
Iga Swiatek16%YesNo
