Here is a group of short par 4's from courses that have hosted the Australian open. One of them NLE as the hole has been lengthened
Commonwealth (Melbourne) hosted the 1967 Australian Open. The first hole used to be a down-hill 260 yards. (Unfortunately, the hole has since been extended into a dogleg with a further 80 yards or so added. The green is now blind from the tee, I think.
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Victoria (Melbourne) has hosted the Australian Open back in 1962 and more recently in 2002. The first hole is still a downhill hole of 255 yards, although the bunkering was toughened by Thompson/Wolveridge pre 1980. Not sure what has happened since.
Royal Sydney has hosted many Aus Opens (Baddeley won a recent one as an amateur. He putted unbelievabley well, fearless). In 1969, Gary Player won the Oz open there. The first hole was 263 yards long. Not sure what has happened here in the recent re-work of Royal Sydney (the members referred to the makeover as 'Viagra' - it wasn't any longer but it was harder).
Lake Karrinyup (Perth) hosted at least 4 opens including 1968 (Nicklaus) and 1974 (Player). The first hole was 251 yards long.
I recall Royal Queensland (1972 I think, won by JC Snead) also ahs a short par 4 first, although I think that was a longer hole of about 285 yards. Not sure what is happening with this hole following on Mike Clayton's current re-work there.
And, since the President's Cup in 1999, the Royal melbourne composite course has started with a shorter 4, about 320 yards I think but a dog-leg left. Sorry, can't tell you which hole on the east Course this hole is.
At the local level (Adelaide), a short course hills club (par 66)Mt Lofty has a couple of short but uphill par 4's of about 240 yards. The first is steeply
uphill. The ex-pro of that club described it following a visit to Augusta as placing a tee somewhere on the bottom of #10 at Augusta and placing the green up near the #10 tee. The hole has certain coronary-related names. It certainly tested the endeavour of supporters in any match-play event when a match went up the 19th.
Amazing how the really short 4's in this batch are all the first hole.
James B