Janice Tjen def. Dayana Yastremska
2-6 6-3 7-6(5)
Janice Tjen defeated Dayana Yastremska 2-6 6-3 7-6(5) in the 2026 Monterrey Open first round on hard courts on August 24, 2026.
Match Information
Match Statistics
| Stat | Janice Tjen | Dayana Yastremska |
|---|---|---|
| Aces | 12 | 4 |
| Double faults | 4 | 8 |
| First serve % | 62 | 65 |
| First serve points won % | 70 | 68 |
| Second serve points won % | 46 | 39 |
| Break points saved % | 50 | 50 |
| Break points converted % | 50 | 50 |
| Service points won % | 61 | 58 |
| Return points won % | 42 | 39 |
| Total points won % | 52 | 48 |
| Serve rating | 117 | 102 |
| Return rating | 95 | 89 |
Win Probability
How the market's view of each player's chances changed through the match.
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Player Comparison
| Field | Janice Tjen | Dayana Yastremska |
|---|---|---|
| Country | INA | UKR |
| Birth date | May 6, 2002 | May 15, 2000 |
| Age | 24 | 26 |
| Height | 171 cm | 175 cm |
| Handedness | Right-Handed | Right-Handed |
| Backhand style | — | Two-Handed Backhand |
| Ranking (entering) | 35 | 112 |
| Ranking points (entering) | 1,293 | 692 |
| Elo (entering) | 1,673 | 1,743 |
| Current career W-L | 21–25 | 135–150 |
| Current career earnings | $1,347,350 | $6,758,117 |
No prior-path match data is available for this tournament stage.