Series
Collin Altamirano
0 1
Ryan Harrison
Head to head
Collin Altamirano vs Ryan Harrison
Last 10
C.Altamirano
W W W L W L W L L L
Last 10
R.Harrison
W L L W L W W L L W
Surface
Indoor
0 1
Meetings
C.Altamirano form
R.Harrison form
Frequently asked questions
What is the Collin Altamirano vs Ryan Harrison head-to-head?
The record is Collin Altamirano 0–1 Ryan Harrison in 1 completed meeting on TennisScoreLive.
What does head to head (H2H) mean?
Head to head is the history of completed matches between these two players — not a prediction.
Why are the players listed in this order?
Both name orders open this same page, so there is one head-to-head for the pair.
When did Collin Altamirano and Ryan Harrison last play?
Most recent listed meeting: 10 Feb 2020 at ATP Challenger Cleveland, USA Men Singles, 6-4 7-6.
Are future matches listed?
No future meeting between this pair is in the catalog right now.
How do I follow the next Collin Altamirano vs Ryan Harrison live?
When they play again, the match appears on Scores Today and on each player page. Open the match for the live score.
Do you rank this rivalry?
No. We only show meetings and form from the catalog — no editorial rivalry ranking.