The 1973 Commercial Union Assurance Grand Prix was a tennis circuit administered by the International Lawn Tennis Federation (ILTF) which served as a forerunner to the current Association of Tennis Professionals (ATP) World Tour and the Women's Tennis Association (WTA) Tour.[1] The circuit consisted of the four modern Grand Slam tournaments and open tournaments recognised by the ILTF. Bonus points were awarded to players who were nominated to play in certain 1973 Davis Cup ties and who miss tournaments through competing in those ties.[2] The Commercial Union Assurance Masters is included in this calendar but did not count towards the Grand Prix.
- Key
AA events |
Grand Prix Masters |
A events |
B events |
C events |
Team events |
Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
7 May | Rothmans British Hard Court Championships Bournemouth, Great Britain Group B Clay – 64S/32D/32XD | Adriano Panatta 6–8, 7–5, 6–3, 8–6 | Ilie Năstase | Barry Phillips-Moore Ross Case | Geoff Masters Buster Mottram François Jauffret Patrice Dominguez |
Juan Gisbert Sr. Ilie Năstase 6–4, 8–6 | Adriano Panatta Ion Țiriac |
Virginia Wade Frew McMillan 6–2, 6–3 | Ilana Kloss Bernard Mitton |
21 May | French Open Paris, France Grand Slam – Group AA Clay – 128S/64D/32XD Singles – Doubles – Mixed doubles | Ilie Năstase 6–3, 6–3, 6–0 | Nikola Pilić | Adriano Panatta Tom Gorman | Tom Okker Paolo Bertolucci Jan Kodeš Roger Taylor |
John Newcombe Tom Okker 6–1, 3–6, 6–3, 5–7, 6–4 | Jimmy Connors Ilie Năstase |
Françoise Dürr Jean-Claude Barclay 6–1, 6–4 | Betty Stöve Patrice Dominguez |
Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
4 Jun | Italian Open Rome, Italy Group A Clay – $101,600 – 96S/48D | Ilie Năstase 6–1, 6–1, 6–1 | Manuel Orantes | Tom Okker Paolo Bertolucci | Stan Smith Péter Szőke Jiří Hřebec Jan Kodeš |
John Newcombe Tom Okker 6–3, 6–2, 6–4 | Ross Case Geoff Masters |
Berlin Open Berlin, West Germany Group C Clay – 32S/16D | Hans-Jürgen Pohmann 6–3, 3–6, 6–3, 6–3 | Karl Meiler | Jürgen Fassbender Eddie Dibbs | Attila Korpás Ulrich Pinner Harald Elschenbroich Bernard Mignot |
Jürgen Fassbender Hans-Jürgen Pohmann 4–6, 6–4, 6–4 | Raúl Ramírez Joaquín Loyo-Mayo |
11 Jun | German Open Hamburg, West Germany Group B Clay – 62S/28D | Eddie Dibbs 6–1, 3–6, 7–6, 6–3 | Karl Meiler | Jaime Fillol Jürgen Fassbender | Paul Gerken Harald Elschenbroich Jiří Hřebec Martin Mulligan |
Jürgen Fassbender Hans-Jürgen Pohmann 7–6, 7–6, 7–6 | Manuel Orantes Ion Țiriac |
John Player Open Nottingham, Great Britain Group B Grass – 40S/21D | Erik van Dillen 3–6, 6–1, 6–1 | Frew McMillan | Tom Gorman Jimmy Connors | Jaidip Mukerjea Mark Cox Dick Stockton Stephen Warboys |
Tom Gorman Erik van Dillen 6–4, 6–4 | Bob Carmichael Frew McMillan |
18 Jun | Rothmans Championships London, Great Britain Group C Grass – 48S/32D Singles – Doubles | Ilie Năstase 9–8, 6–3 | Roger Taylor | Alex Metreveli Owen Davidson | Ismail El Shafei Jürgen Fassbender John Newcombe Cliff Drysdale |
Tom Okker Marty Riessen 6–4, 7–5 | Ray Keldie Raymond Moore |
Rothmans South of England Championships Eastbourne, Great Britain Group B Grass – 32S/16D | Mark Cox 6–2, 2–6, 6–3 | Patrice Dominguez | Onny Parun Allan Stone | Paul Gerken Andrés Gimeno Ian Fletcher Graham Stilwell |
Ove Bengtson Jim McManus 6–4, 4–6, 7–5 | Manuel Orantes Ion Țiriac |
25 Jun | Wimbledon Championships London, Great Britain Grand Slam – Group AA Grass – 128S/64D/56XD Singles – Doubles – Mixed doubles | Jan Kodeš 6–1, 9–8(7–5), 6–3 | Alex Metreveli | Sandy Mayer Roger Taylor | Jürgen Fassbender Jimmy Connors Björn Borg Vijay Amritraj |
Jimmy Connors Ilie Năstase 3–6, 6–3, 6–4, 8–9(3–7), 6–1 | John Cooper Neale Fraser |
Billie Jean King Owen Davidson 6–3, 6–2 | Janet Newberry Raúl Ramírez |
Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
9 Jul | Swedish Open Båstad, Sweden Group B Clay – $50,000 – 32S/22D Singles – Doubles | Stan Smith 6–4, 6–2, 7–6 | Manuel Orantes | Björn Borg Leif Johansson | Martin Mulligan Jaime Pinto Bravo Bob Carmichael Antonio Zugarelli |
Nikola Pilić Stan Smith 2–6, 6–4, 6–4 | Bob Carmichael Frew McMillan |
Swiss Open Gstaad, Switzerland Group B Clay – 32S | Ilie Năstase 6–4, 6–3, 6–3 | Roy Emerson | Patrick Proisy Karl Meiler | Brian Fairlie Allan Stone Sandy Mayer Tom Okker |
Green Shield Welsh Open Newport, Great Britain Group C Grass – 64S/32D | Roger Taylor 9–8, 8–6 | Bob Giltinan | John Paish Jeff Simpson | Terry Ryan John Bartlett Byron Bertram Dick Bohrnstedt |
Title shared. | Bertram / Lloyd Giltinan / Keldie |
16 Jul | U.S. Professional Tennis Championships Boston, United States Group B Hard – 32S/16D Singles | Jimmy Connors 6–3, 4–6, 6–4, 3–6, 6–2 | Arthur Ashe | Cliff Richey Clark Graebner | Dick Stockton Marty Riessen John Alexander Roscoe Tanner |
Austrian Open Kitzbühel, Austria Group C Clay – 32S/17D | Title shared. | Raúl Ramírez Manuel Orantes | Marcelo Lara Ion Țiriac | Vladimír Zedník José Edison Mandarino Barry Phillips-Moore Vladimir Korotkov |
Jim McManus Raúl Ramírez 6–2, 6–2, 6–3 | José Edison Mandarino Tito Vázquez |
Dutch Open Hilversum, the Netherlands Group C Clay – 32S/16D Singles | Tom Okker 2–6, 6–4, 6–4, 6–7, 6–3 | Andrés Gimeno | Allan Stone Geoff Masters | Wanaro N'Godrella Attila Korpás Ian Fletcher Iván Molina |
Iván Molina Allan Stone 4–6, 7–6, 6–4 | Andrés Gimeno Antonio Muñoz |
23 Jul | Washington Star International Washington, United States Group A Clay – $75,000 – 64S/32D | Arthur Ashe 6–4, 6–2 | Tom Okker | Jaime Fillol Tom Gorman | Paul Gerken Marty Riessen Nikola Pilić Dick Stockton |
Ross Case Geoff Masters 2–6, 6–4, 6–4 | Dick Crealy Andrew Pattison |
Volvo International Bretton Woods, United States Group C Clay – 32S/16D Singles | Vijay Amritraj 7–5, 2–6, 7–5 | Jimmy Connors | Ian Fletcher John Alexander | Bob Carmichael Gerald Battrick Tom Edlefsen Rod Laver |
Rod Laver Fred Stolle 7–6, 4–6, 7–5 | Bob Carmichael Frew McMillan |
30 Jul | First National Bank Classic Louisville, United States Group A Clay – $75,000 – 64S/32D | Manuel Orantes 3–6, 6–3, 6–4 | John Newcombe | Vitas Gerulaitis Guillermo Vilas | Dick Crealy Ross Case Nikola Pilić Antonio Muñoz |
Manuel Orantes Ion Țiriac 0–6, 6–4, 6–3 | Clark Graebner John Newcombe |
Buckeye Championships Columbus, United States Group C Hard – $25,000 – 32S/16D | Jimmy Connors 3–6, 6–3, 6–3 | Charlie Pasarell | Paul Gerken Haroon Rahim | Pancho Gonzales Andrew Pattison Colin Dibley Brian Gottfried |
Gerald Battrick Graham Stilwell 6–4, 7–6 | Colin Dibley Charlie Pasarell |
Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
6 Aug | Western Championships Cincinnati, United States Group B Clay – $50,000 – 32S/16D | Ilie Năstase 5–7, 6–3, 6–4 | Manuel Orantes | Nikola Pilić Jimmy Connors | John Alexander Guillermo Vilas Roscoe Tanner Patrick Proisy |
John Alexander Phil Dent 1–6, 7–6, 7–6 | Brian Gottfried Raúl Ramírez |
Tanglewood International Tennis Classic Clemmons, United States Group C Clay – 32S/16D | Jaime Fillol 6–2, 6–4 | Gerald Battrick | Jeff Borowiak Vijay Amritraj | Ross Case Brian Fairlie Georges Goven Frew McMillan |
Bob Carmichael Frew McMillan 6–3, 6–4 | Brian Fairlie Ismail El Shafei |
13 Aug | U.S. Clay Court Championships Indianapolis, United States Group B Clay – $90,000 – 50S/22D | Manuel Orantes 6–4, 6–1, 6–4 | Georges Goven | Cliff Richey Raúl Ramírez | Brian Gottfried Roscoe Tanner Patrick Proisy Paolo Bertolucci |
Bob Carmichael Frew McMillan 6–3, 6–4 | Manuel Orantes Ion Țiriac |
Pennsylvania Championships Merion, United States Group C Grass – 64S/32D | Mike Estep 7–5, 3–6, 7–6, 3–6, 7–5 | Gene Scott | Vijay Amritraj Herb Fitzgibbon | Brian Teacher Ian Fletcher Anand Amritraj Jean-Baptiste Chanfreau |
Colin Dibley Allan Stone 7–6, 6–3 | Jeff Austin Fred McNair |
20 Aug | Canadian Open Toronto, Ontario, Canada Group A Hard – $100,000 – 64S/32D Singles – Doubles | Tom Okker 6–3, 6–2, 6–1 | Manuel Orantes | Cliff Drysdale Iván Molina | Paolo Bertolucci Björn Borg John Newcombe Arthur Ashe |
Rod Laver Ken Rosewall 7–5, 7–6 | Owen Davidson John Newcombe |
Eastern Championships South Orange, United States Group C Grass – 32S/16D | Colin Dibley 6–4, 6–7, 6–4 | Vijay Amritraj | Pancho Gonzales Clark Graebner | Paul Gerken Dick Stockton Ion Țiriac Onny Parun |
Jimmy Connors Ilie Năstase 6–7, 6–3, 6–2 | Pancho Gonzales Tom Gorman |
27 Aug | US Open New York City, United States Grand Slam – Group AA Grass – $118,000–128S/62D/32XD Singles – Doubles – Mixed doubles | John Newcombe 6–4, 1–6, 4–6, 6–2, 6–3 | Jan Kodeš | Stan Smith Ken Rosewall | Onny Parun Nikola Pilić Vijay Amritraj Jimmy Connors |
Owen Davidson John Newcombe 7–5, 2–6, 7–5, 7–5 | Rod Laver Ken Rosewall |
Billie Jean King Owen Davidson 6–3, 3–6, 7–6 | Margaret Court Marty Riessen |
Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
10 Sep | U.S. Hard Court Championships Aptos, United States Group C Hard – 32S/16D | Jeff Austin 7–6, 6–4 | Onny Parun | Haroon Rahim Dick Bohrnstedt | Tom Edlefsen Erik van Dillen John Lloyd Mike Machette |
Jeff Austin Fred McNair 6–2, 6–1 | Raymond Moore Onny Parun |
Rainier International Tennis Classic Seattle, United States Group C Carpet (i) – $37,500 – 32S/16D Singles – Doubles | Tom Okker 7–5, 6–4 | John Alexander | Tom Gorman Cliff Richey | Torben Ulrich Mark Cox Brian Gottfried Arthur Ashe |
Tom Gorman Tom Okker 2–6, 6–4, 7–6 | Bob Carmichael Frew McMillan |
17 Sep | Pacific Southwest Open Los Angeles, United States Group A Hard – $75,000 – 64S/32D Singles – Doubles | Jimmy Connors 7–5, 7–6(11–9) | Tom Okker | Raúl Ramírez Ilie Năstase | Stan Smith Charlie Pasarell Ken Rosewall Raymond Moore |
Jan Kodeš Vladimír Zedník 6–2, 6–4 | Jimmy Connors Ilie Năstase |
24 Sep | Pacific Coast Championships San Francisco, United States Group B Hard – $50,000 – 32S/16D Singles – Doubles | Roy Emerson 5–7, 6–1, 6–4 | Björn Borg | Raymond Moore Arthur Ashe | Stan Smith Tom Gorman Roscoe Tanner John Alexander |
Roy Emerson Stan Smith 6–2, 6–1 | Ove Bengtson Jim McManus |
Tam International Chicago, United States Group B Carpet (i) – 32S/16D | Tom Okker 3–6, 7–6, 6–3 | John Newcombe | Ilie Năstase Marty Riessen | Graham Stilwell Gerald Battrick Eddie Dibbs Brian Gottfried |
Owen Davidson John Newcombe 6–7, 7–6, 7–6 | Gerald Battrick Graham Stilwell |
Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
1 Oct | Fort Worth Open Fort Worth, United States Group B Hard – 32S/16D | Eddie Dibbs 7–5, 6–2, 6–4 | Brian Gottfried | Jaime Fillol Roscoe Tanner | Phil Dent Harold Solomon Andrew Pattison John Newcombe |
Brian Gottfried Dick Stockton 7–6, 6–4 | Owen Davidson John Newcombe |
Quebec Open Quebec, Canada Group B 32S/16D | Jimmy Connors 6–1, 6–1, 6–7, 6–0 | Marty Riessen | Mark Cox Kjell Johansson | Onny Parun Raymond Moore Clark Graebner Tenny Svensson |
Bob Carmichael Frew McMillan 6–2, 7–6 | Jimmy Connors Marty Riessen |
Osaka Open Osaka, Japan Group C Hard – 32S/16D | Ken Rosewall 6–2, 6–4 | Toshiro Sakai | Cliff Drysdale Željko Franulović | Jun Kuki Milan Holeček Paul Kronk Sherwood Stewart |
Jeff Borowiak Tom Gorman 6–4, 7–6 | Jun Kamiwazumi Ken Rosewall |
8 Oct | Trofeo Conde de Godó Barcelona, Spain Group A Clay – 58S/32D Singles – Doubles | Ilie Năstase 2–6, 6–1, 8–6, 6–4 | Manuel Orantes | Jan Kodeš Björn Borg | José Higueras Barry Phillips-Moore Andrew Pattison Buster Mottram |
Ilie Năstase Tom Okker 4–6, 6–3, 6–2 | Antonio Muñoz Manuel Orantes |
Japan Open Tennis Championships Tokyo, Japan Group B 48S/24D | Ken Rosewall 6–1, 6–4 | John Newcombe | Hans-Jürgen Pohmann Cliff Drysdale | Colin Dibley Brian Gottfried Jeff Borowiak Kim Warwick |
Mal Anderson Ken Rosewall 7–5, 7–5 | Colin Dibley Allan Stone |
15 Oct | Trofeo Melia Madrid, Spain Group A Clay – 64S/31D | Tom Okker 4–6, 6–3, 6–3, 7–5 | Jaime Fillol | Ilie Năstase Buster Mottram | Nikola Pilić José Higueras Rod Laver Pierre Barthès |
Ilie Năstase Tom Okker 6–3, 6–0 | Bob Carmichael Frew McMillan |
Indian Open New Delhi, India Group B 32S/16D | Vijay Amritraj 6–4, 5–7, 8–9, 6–3, 11–9 | Mal Anderson | Raúl Ramírez Mike Estep | Ian Fletcher Fred Stolle Paul Gerken Jasjit Singh |
Jim McManus Raúl Ramírez 6–2, 6–4 | Anand Amritraj Vijay Amritraj |
Milo International Tennis Classic Manila, the Philippines Group C 32S/16D | Ross Case 6–1, 6–0 | Geoff Masters | John Newcombe Colin Dibley | Milan Holeček Jürgen Fassbender Hans-Jürgen Pohmann Allan Stone |
Marcelo Lara Sherwood Stewart 4–6, 7–5, 7–6 | Jürgen Fassbender Hans-Jürgen Pohmann |
22 Oct | Aryamehr Cup Tehran, Iran Group A Clay – 48S/21D | Raúl Ramírez 6–7, 6–1, 7–5, 6–3 | John Newcombe | Željko Franulović Rod Laver | Ilie Năstase Syd Ball Hans-Jürgen Pohmann Bob Giltinan |
Rod Laver John Newcombe 7–6, 6–2 | Ross Case Geoff Masters |
Czechoslovakian Championships Prague, Czechoslovakia Group C Clay – 32S/16D | Jiří Hřebec 4–6, 6–1, 3–6, 6–0, 7–5 | Jan Kodeš | Jan Písecký Ove Bengtson | Vladimír Zedník František Pála Barry Phillips-Moore Kjell Johansson |
Jan Kodeš Vladimír Zedník 7–6, 7–6 | Róbert Machán Balázs Taróczy |
29 Oct | Jean Becker Open Paris, France Group B Hard (i) – $50,000 – 48S/23D Singles – Doubles | Ilie Năstase 4–6, 6–1, 3–6, 6–0, 6–2 | Stan Smith | Tom Okker Karl Meiler | Jean-Baptiste Chanfreau Arthur Ashe Roscoe Tanner Leif Johansson |
Juan Gisbert Sr. Ilie Năstase 6–4, 6–4 | Arthur Ashe Roscoe Tanner |
Indonesia Open Jakarta, Indonesia Group C 32S/16D | John Newcombe 7–6, 7–6, 6–3 | Ross Case | Ian Fletcher Jürgen Fassbender | Marcelo Lara Ray Keldie Gondo Widjojo Allan Stone |
Mike Estep Ian Fletcher 7–5, 6–4 | John Newcombe Allan Stone |
Viceroy Classic Hong Kong Group C Hard – 32S/16D Singles – Doubles | Rod Laver 6–3, 3–6, 6–2, 6–2 | Charlie Pasarell | Anand Amritraj Fred Stolle | Paul Gerken Mal Anderson Brian Gottfried Raúl Ramírez |
Colin Dibley Rod Laver 6–3, 5–7, 17–15 | Paul Gerken Brian Gottfried |
Week | Tournament | Champions | Runners-up | Semifinalists | Quarterfinalists |
5 Nov | Stockholm Open Stockholm, Sweden Group A Hard (i) – 48S/24D Singles – Doubles | Tom Gorman 6–3, 4–6, 7–6(7–5) | Björn Borg | Tom Okker Jimmy Connors | Stan Smith Arthur Ashe Manuel Orantes Nikola Pilić |
Jimmy Connors Ilie Năstase 6–3, 6–7, 6–2 | Bob Carmichael Frew McMillan |
Australian Indoor Championships Sydney, Australia Group B Hard (i) – 32S/16D Singles – Doubles | Rod Laver 3–6, 7–5, 6–3, 3–6, 6–4 | John Newcombe | Phil Dent Ken Rosewall | Geoff Masters Ross Case Sherwood Stewart Raúl Ramírez |
Rod Laver John Newcombe 7–6, 6–2 | Mal Anderson Ken Rosewall |
12 Nov | Dewar Cup London, Great Britain Group B Carpet (i) – 32S/16D | Tom Okker 6–3, 6–4 | Ilie Năstase | Jimmy Connors Mark Cox | Raymond Moore Patrick Proisy Tom Gorman Ion Țiriac |
Mark Cox Owen Davidson 6–4, 8–6 | Gerald Battrick Graham Stilwell |
Benson & Hedges Classic Christchurch, New Zealand Group C 29S/12D | Fred Stolle 7–6, 6–4, 6–1 | Brian Gottfried | Sherwood Stewart Fred McNair | Allan Stone Dick Dell Mike Estep Jim McManus |
Anand Amritraj Fred McNair Walkover | Jürgen Fassbender Jeff Simpson |
19 Nov | South African Championships[note 1] Johannesburg, South Africa Group A Hard – 32S/16D/16XD | Jimmy Connors 6–4, 7–6, 6–3 | Arthur Ashe | Cliff Drysdale Tom Okker | Byron Bertram Bob Hewitt Jaime Fillol Mark Cox |
Arthur Ashe Tom Okker 6–2, 4–6, 6–2, 6–4 | Lew Hoad Bob Maud |
Evonne Goolagong Jürgen Fassbender 6–3, 6–2 | Ilana Kloss Bernard Mitton |
South American Championships Buenos Aires, Argentina Group B Clay – 32S/4D Singles | Guillermo Vilas 3–6, 6–7, 6–4, 6–6(5–5) ret. | Björn Borg | Iván Molina Eddie Dibbs | Ion Țiriac Željko Franulović Toma Ovici Jaime Pinto Bravo |
Ricardo Cano Guillermo Vilas 7–6, 6–2 | Patricio Cornejo Iván Molina |
26 Nov | Davis Cup Final Cleveland, United States – carpet | Australia 5–0 | United States | Romania Czechoslovakia | |
Grand Prix points system
[edit] The tournaments listed above were divided into four groups. Group AA consisted of the Triple Crown – the French Open, the Wimbledon Championships and the US Open – while the other tournaments were divided into Groups A, B and C by prize money and draw size. Points were allocated based on these groups and the finishing position of a player in a tournament. No points were awarded to first round losers and ties were settled by the number of tournaments played. The points allocation is listed below:
Group AA - Champion: 100
- Runner-up: 75
- Semifinalist: 50
- Quarterfinalist: 25
- Fourth Round: 12
- Third Round: 6
- Second Round: 3
|
Group A - Champion: 60
- Runner-up: 40
- Semifinalist: 30
- Quarterfinalist: 15
- 9th – 16th: 7
- 17th – 32nd: 3
- 33rd – 64th: 1
|
Group B - Champion: 40
- Runner-up: 30
- Semifinalist: 20
- 5th – 8th: 10
- 9th – 16th: 5
- 17th – 32nd: 2
|
Group C - Champion: 20
- Runner-up: 15
- Semifinalist: 10
- 5th – 8th: 5
- 9th – 16th: 3
- 17th – 32nd: 1
|
Grand Prix rankings
[edit] 1) Ilie Năstase 610 points, 2) John Newcombe 512.5 points, 3) Tom Okker 498 points, 4) Jimmy Connors 383 points, 5) Manuel Orantes 358.5 points, 6) Jan Kodeš 315 points, 7) Stan Smith 274 points, 8) Tom Gorman 270 points, 9) Björn Borg 240 points, 10) Arthur Ashe 236 points, 11) Rod Laver 230 points, 12) Nikki Pilic 210 points, 13) Jaime Fillol 203 points, 14) Raúl Ramírez 186.5 points, 15) Onny Parun 177 points, 16) Vijay Amritraj 169.5 points, 17) Ken Rosewall 169 points, 18) Eddie Dibbs 155 points, 19) Karl Meiler 155 points, 20) Marty Riessen 141 points, 21) Alex Metreveli 141 points, 22) Jiří Hřebec 131 points, 23) Ross Case 126 points, 24) Roger Taylor 126 points, 25) Guillermo Vilas 121 points, 26) Adriano Panatta 119 points, 27) Brian Gottfried 118 points, 28) Mark Cox 118 points, 29) Jürgen Fassbender 115 points, 30) Charles Pasarell 112 points, 31) Cliff Drysdale 112 points, 32) Paolo Bertolucci 104 points, 33) Geoff Masters 100 points, 34) Ray Moore 98 points, 35) John Alexander 98 points[3]
On 23 August 1973 the Association of Tennis Professionals published its first list of computer rankings, using points averages rather than points totals in their calculations. These are the ATP rankings of the top twenty singles players in the first list[4] and at the end of the 1973 season,[5] with numbers of ranking points, points averages, numbers of tournaments played, year-end rankings in 1973, highest and lowest positions during the season and number of spots gained or lost from the first rankings to the year-end rankings.