[12] Poidevin's eldest sibling, Andrew, obtained a scholarship to study at Chevalier College at Bowral, where he represented NSW schoolboys playing rugby union.

[18] Upon finishing school he played a season with the Goulburn Rugby Union Football Club and then, in 1978, he moved to Sydney to study at the University of New South Wales, from which he graduated in 1983 with a Bachelor of Science (Hons).

[22] Following the 1980 University of NSW tour to the west coast of America, Poidevin achieved selection for the Sydney rugby team coached by former Wallaby Peter Crittle.

[22] Shortly following this selection, the Sydney rugby side completed a brief tour to New Zealand, that included matches against Waikato, Thames Valley and Auckland.

[25] Shortly following Sydney's win against NSW Country, Poidevin achieved national selection for the 1980 Australia rugby union tour of Fiji.

[25] Poidevin concealed his shoulder injury, sustained in the Sydney match against NSW Country, from the Australian team management, so he could play for Australia.

[2] Following the 1980 Australia rugby union tour of Fiji, Poidevin played in six consecutive matches against New Zealand – for Australian Universities, Sydney, NSW and in three Tests for the Wallabies.

[31] Following his brief tour of Japan, Poidevin was selected for the Sydney team to play against a World XV that included players such as New Zealand's Bruce Robertson, Hika Reid and Andy Haden, Wales’ Graham Price, Argentina's Alejandro Iachetti and Hugo Porta and Australia's Mark Loane.

[33] Sydney then lost to New Zealand side Canterbury before responding by defeating Auckland and NSW Country – both games were played at Redfern Oval.

[53] Poidevin would later remark that: "Out on the field it felt like a real flogging, and personally I'd been well outplayed by their skipper Graham Mourie, a player of great intelligence and an inspiring leader.

It was all deadly serious stuff during the build-up to that game...’[84] Terry Cooper reported that: ‘Cardiff went clear at 16–0 after 61 minutes when Davies swept home a 20-metre penalty.

[100][101] Terry Cooper documented that: 'Ward kicked two late penalties, but in between Simon Poidevin, on hand as always, scored Australia's third try, which had been made possible by Ella's sinuous running.

[102] Poidevin played in the Wallabies' third Test on tour, defeating Wales, won 28–9, during which he delivered the final pass for a Michael Lynagh try by linking with David Campese and was involved in a famous pushover try.

"[104] Terry Smith in Path to Victory wrote that: "Lynagh's second try came after Farr-Jones again escaped up the blind side from a scrum to set up a dazzling break by David Campese.

[117] In For Love Not Money Poidevin recollected that, "Australia copped a fair amount of criticism for their play, but this really was unnecessary because you couldn't have asked for a more disciplined performance than our first Test win.

[124] In For Love Not Money Poidevin criticised the Australian Rugby Union for not capitalising upon the marketing opportunities opened up by the success of the 1984 Grand Slam Wallabies.

[125] However, Andrew Slack, the captain of the 1984 Grand Slam Wallabies, had decided to come out of retirement and play international rugby, causing a dilemma within the Australian side.

[132] The Overseas Unions XV was a team composed of players from the three major Southern Hemisphere rugby-playing nations – Australia, New Zealand and South Africa.

Alas, the invitation never came…[132] Following New South Wales’ loss in the return interstate match against Queensland, Poidevin was asked to stand-by as a reserve for a game Randwick played against Parramatta at Granville Park.

"[147] During the 1987 Hong Kong Sevens Poidevin was informed via telex message that he had been removed as captain of the New South Wales team and replaced by Nick Farr-Jones by new coach Paul Dalton.

In For Love Not Money Poidevin wrote that, "I’d spent most of my years with the club [Randwick] in an absentee role while tied up with representative teams, and before I retired I wanted to have at least one full season wearing the myrtle green jersey.

[163] Following the 1989 British Lions series, Poidevin achieved national selection for the only time in 1989 for the one-off Bledisloe Cup Test against New Zealand to be played in Auckland.

[170] Poidevin commenced his 1991 rugby season by participating in a three-day sevens tournament held in Punta del Este in Uruguay, as part of an ANZAC side composed of both Australian and New Zealand players (and one Uruguayan).

[171] Poidevin played alongside players such as Australia's Darren Junee and All Blacks Zinzan Brooke, Walter Little, Craig Innes and John Timu.

[176] Miller's dropping caused controversy following his man of the match performance, and many Queenslanders expressed their disapproval of Australia coach Bob Dwyer's selection.

Poidevin played in Australia's first group-stage match of the tournament against Argentina, in a back row composed of himself, Ofahengaue and John Eales at number eight.

[185] Poidevin played in Australia's third and final group match against Wales, in a back row now composed of himself, Jeff Miller at openside, and Ofahengaue at number eight.

I can remember the hard-headed Queensland coach and Wallabies selector John Connolly remarking before the semi that if we selected the same back row we might as well give the game to the All Blacks.

He wrote that, "Leading up to that match our flanker Jeff Miller had been absolutely brilliant but we made the extremely unpopular decision to drop him in favour of the more physically-imposing Simon Poidevin.

In For Love Not Money Poidevin recollects that, "Among the many moments I remember from the final was the hit on me early in the game by rival flanker Mickey Skinner, without doubt the best English player on the day.