**Mirra Andreeva enters the 2026 US Open first round as the clear favorite against Janice Tjen on outdoor hard courts, backed by her No. 5 ranking, 40-13 season record, and French Open title earlier this year.** The 19-year-old has shown strong hard-court form, including a straight-sets win over Tjen (6-1, 7-6(5)) in the Cincinnati third round just 10 days prior—their only prior meeting. Andreeva also advanced to the mixed doubles semifinals in New York alongside Andrey Rublev before falling to the eventual champions. Tjen, ranked No. 35 with an 11-22 mark in 2026, reached a career high this month but has struggled for consistency against elite opposition and lacks the depth or recent momentum to challenge a top-five player in a Grand Slam setting. The surface and experience gap further tilt trader consensus toward Andreeva advancing comfortably.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedAll Sports
NFL
MLB
College Football
UFC
All
Premier League
LaLiga
Bundesliga
Serie A
Ligue 1
Eredivisie
Saudi Pro League
2. Bundesliga
Club Friendlies
MLS
Danish Superliga
Primeira Liga
Ligue 2
EFL Championship
Turkey 1. Lig
League of Ireland Premier Division
Ekstraklasa
Süper Lig
K League 2
Serie B
Eliteserien
Liga MX
Egyptian Premier League
Taça de Portugal
Categoría Primera A
Allsvenskan
Eerste Divisie
K League 1
Belgium Pro League
National League
Brasileirão Série B
efbet Liga
Uruguayan Primera División
Chinese Super League
Brasileirão Série A
Qatar Stars League
Austria Bundesliga
J1 League
UAE Pro League
J2 League
DFB-Pokal
LaLiga2
Categoría Primera B
USL League One
Primera Nacional
Scottish Premiership
USL Championship
SuperLiga
Liga de Primera
Ukrainian Premier League
Kazakhstan Premier League
Betri deildin
China League One
Superettan
NWSL
LigaPro Serie A
Brasileirão Série C
Slovenia PrvaLiga
UEFA Champions League
NB I
UEFA Europa League
Veikkausliiga
Virslīga
League Two
Liga FPD
Liga 1
UEFA Conference League
Liga Nacional de Guatemala
Primera B (Chile)
Copa do Brasil
League One
Besta deild karla
Challenger Pro League
ÖFB Cup
Copa Sudamericana
Swiss Super League
Scotland League Cup
OBOS-ligaen
Niké liga
Leagues Cup
UEFA Women's Champions League
Chance Liga
Serbian SuperLiga
Copa Libertadores
Uzbekistan Super League
Israeli Premier League
Greece Super League
A Lyga
Premium Liiga
Australia Cup
Prva Liga
TFF Süper Kupa
Coppa Italia
A-League Men
Liga Profesional de Fútbol
EFL CUP
Greek Cup
KNVB Beker
Copa Argentina
Bolivian Primera División
Botola Pro
South Africa Premiership
ASEAN Championship
Hockey
Volleyball
Cycling
Poker
Chess
Pickleball
Esports
Mirra Andreeva – Janice Tjen
Moneyline
$28 Vol.
Game Spread
$0 Vol.
This market will resolve to 'Mirra Andreeva' if Mirra Andreeva advances against Janice Tjen.
This market will resolve to 'Janice Tjen' if Janice Tjen advances against Mirra Andreeva.
If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 13, 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.
Market Opened: Aug 28, 2026, 12:14 AM ET
Resolution Source
https://www.wtatennis.com/scoresResolver
0x65070BE91...Mirra Andreeva – Janice Tjen
Moneyline
$28 Vol.
Game Spread
$0 Vol.
This market will resolve to 'Mirra Andreeva' if Mirra Andreeva advances against Janice Tjen.
This market will resolve to 'Janice Tjen' if Janice Tjen advances against Mirra Andreeva.
If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 13, 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.
Market Opened: Aug 28, 2026, 12:14 AM ET
Resolution Source
https://www.wtatennis.com/scoresResolver
0x65070BE91...**Mirra Andreeva enters the 2026 US Open first round as the clear favorite against Janice Tjen on outdoor hard courts, backed by her No. 5 ranking, 40-13 season record, and French Open title earlier this year.** The 19-year-old has shown strong hard-court form, including a straight-sets win over Tjen (6-1, 7-6(5)) in the Cincinnati third round just 10 days prior—their only prior meeting. Andreeva also advanced to the mixed doubles semifinals in New York alongside Andrey Rublev before falling to the eventual champions. Tjen, ranked No. 35 with an 11-22 mark in 2026, reached a career high this month but has struggled for consistency against elite opposition and lacks the depth or recent momentum to challenge a top-five player in a Grand Slam setting. The surface and experience gap further tilt trader consensus toward Andreeva advancing comfortably.
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.
Beware of external links.
Beware of external links.
Beware of external links.
Frequently Asked Questions