The phrase "after squandering a match" is correct and usable in written English.
You can use it to describe a situation where someone has wasted an opportunity or failed to make the most of a match, typically in a sports context.
Example: "The team was left disappointed after squandering a match they were expected to win."
Alternatives: "after wasting a match" or "after losing a match unnecessarily".
After beating third-seeded Monica Seles in the quarterfinals, she beat the top-ranked Hingis in the semifinals, despite losing the second set after squandering a match point.
After squandering a match point in the fourth set of that match, Agassi seemed to lose interest and succumbed, 6-1, in the fifth.
Murray dropped the third set after squandering a match point but the British number one produced his scintillating best in the fourth to win 7-6 (7/4) 6-2 5-7 6-1.
In the quarterfinals of the Cincinnati Masters, Baghdatis flashed a wide grin after squandering a second match point against Rafael Nadal.
Wales have to take a good look at themselves, though, for squandering a match that also hinged on a decision to kick for touch.
McHale was broken for the first time in the match after squandering a 40-love lead in the final game of the first set, but fought well and broke to open the second set.
Boro, play-off final runners-up at the end of last season, currently sit second in the table, but are now seven points adrift of the leaders Burnley with a game in hand having won just three of their last 11 matches and after squandering a healthy advantage over their promotion rivals.
After squandering a 4-1 lead in the second set, Peer steadied herself.
Last year in California Proposition 37, on which I-522 was based, foundered after squandering a huge polling lead.
After squandering a 25-point lead in the Super Bowl, the Atlanta Falcons are shaking up their defensive staff.
Memphis 126, Miami 116 -- The Grizzlies won in overtime after squandering a 16-point fourth-quarter lead at Memphis.
