The phrase "a third try for" is correct and usable in written English.
It can be used when referring to making a third attempt at something, often in contexts where previous attempts have been made.
Example: "After two unsuccessful attempts, I decided to make a third try for the promotion."
Alternatives: "a third attempt at" or "a third shot at".
This left a gaping opening for his Republican opponent, Steve Stockman, a 37-year-old accountant making a third try for the seat.
A third try for his team looked inevitable, especially after a searing break by the seriously quick Schalk Brits, but somehow Ulster managed to hold the ball up over their line.
In 2004 Vázquez was perfectly positioned for a third try for the presidency, as polls were showing that the Progressive Encounter Broad Front (Encuentro Progresista–Frente Amplio; EP FA), a new incarnation of the country's left-wing coalition, had become the largest party in the country.
They were still comfortable with a 36-22 lead with only seven minutes remaining but made the mistake of giving the Catalans a sniff as two moments of magic by the Fiji centre Daryl Millard laid on a third try for Damien Cardace and a first for the livewire full-back Morgan Escaré.
Paddy Jackson scored two tries in an impressive first half while Tommy Bowe added a third try for Ulster.
After Sinfield was denied a third try for a knock-on he kicked his side into a 14-0 half-time lead from a penalty.
The extra point came with a second try for Jack, a shorter-range plunge from a ruck on the line.
Fund-raising groups should underwrite a second try for those giving so much of themselves for the benefit of others.
Danny Brough laid on a first try for Aaron Murphy with a tantalising long pass that sucked Dom Manfredi out of position.
Ferres grabbed a second try for the visitors but Clark twice took advantage of their tiring defence to cross for tries as the Wolves finished in total control.
Panthers second-rower Bryce Cartwright earlier set up a 12-6 haleadme lead by scoring the first and setting up a second try for makeshift centre Tyrone Peachey.
