However, Tawa scored from a penalty corner three minutes later, which along with Collegiate getting their yellow card in the 58th minute set up a nervous finish.
Nonetheless, the team has made it to the cup final at Park Island Hockey Stadium against home team Napier Boys High, starting at 1.15pm tomorrow.
NBHS recovered from losing 2-1 to Tawa in pool play to win their remaining games by comfortable scorelines, although their 23 tournament goals is well behind Collegiate's 38.
Doing the most damage up front for Collegiate has been Hayden Skou (12 goals), Meyer (10) and James Craig (9), all of them leading the tournament points scorers table, followed by NBHS's George Bergman (8).
Collegiate's 1st XI girls are also into the final of the Chica Gilmer Trophy tournament at North Harbour Hockey Stadium, following a 2-0 win in their semifinal with Kamo High, with Collegiate having yet to concede a goal in the competition.
Starting on Monday, Collegiate swept Botany Downs Secondary College 16-0, then accounted for Long Bay College 2-0 and Epsom Girls Grammar 3-0 in pool play.
Captain Sophie Redmayne has scored 10 of their 23 goals, while at the other end, goal keeper Sienna King has kept a clean sheet.
In the semifinal, both Redmayne and Emma Osborne had scored field goals inside the opening ten minutes, with the defence stonewalling Kamo from there.
At the top-ranked Rankin Cup & India Shield tournament in Christchurch, the Whanganui High School 1st XI boys have had to set their sights on the latter prize after dropping all three pool games to move into the consolation group, but since then winning their way into the semifinals.
As previously reported, WHS lost to Kings College 3-1 and Wellington College 4-1, which was then followed by a 3-1 defeat to Rosmini College.
Entering the India Shield competition, WHS saved their campaign after they beat Wairarapa College in a penalty shootout, 4-2, after the team's were tied 2-2 at fulltime.
Kaelin Mooney, Patrick Madder, Connor Hoskin and Travis Bayler all kept their nerve to convert the shots to send WHS through.
This was followed up by a 4-1 win over St Paul's Collegiate in the Shield quarterfinal today, with Bayler, Mooney, Max Campbell and Ben Skedgwell the goal scorers.
And at the Mary Clinton Cup being held locally, Whanganui Girls College were coming back well from their heavy 7-0 loss to Te Kura Kaupapa Maori o Ruamata and 2-2 draw with Hastings Girls High.
Whanganui Girls went on to beat Hawera High 1-0, then overcame Marist College on a penalty shootout, 4-3, after the team's were deadlocked 1-1 at fulltime.