Titles won
Ranking History
Learner TienNo. 16 · best No. 12 (Aug 2026)
Weekly official ranking, top 500. A dotted stretch means no ranking in our records for those weeks — the tour did not publish one, or the player was outside the top 500.
Player Info
Age20 years
BornDec 2, 2005
Height180 cm
Weight73 kg
PlaysLeft-handed
BackhandTwo-handed
Turned Pro2023
BirthplaceIrvine, CA, USA
CoachMichael Chang, Erik Kortland
Career Stats
Updated 9/2/2026Career W/L63-43
Titles3
Challenger & ITF titles10
Ranking Points2,395
Career HighNo. 15 (Jul 2026)
Prize Money$2,936,710
Win Rate59.4%
Surface Breakdown
Hard Court63% (47-28)
Clay Court50% (10-10)
Grass Court55% (6-5)
Detailed Stats
Service · All
Aces928
Double Faults822
1st Serve62.1%
1st Serve Points Won68.6%
2nd Serve Points Won51.7%
Break Points Saved61.3%
BP Faced1,715
Service Games Played2,997
Service Games Won77.9%
Total Service Points Won62.2%
Return · All
1st Serve Return Pts Won32.6%
2nd Serve Return Pts Won54.4%
Break Points Converted45.5%
BP Opportunities1,911
Return Games Played2,997
Return Games Won29.0%
Return Points Won40.8%