This data has been compiled from all available written sources and contact with individual pilots. It's possible that USA visitors to Cowley other than McClanahan in 1961 achieved Diamond climbs also, but the SSA does not keep this data.
| Pilot | Gain/Abs (m) |
|
Glider | Record | |
| Bob Cheston (not Dia) | 4067 | 25-Jun-57 | Fauvel AV-36 | height gain | |
| Ralph White | 5030/7280 | 17-Apr-60 |
1-26 |
absolute alt | |
| Julien Audette | 7108/9336 | 1-Apr-61 | 1-23G | gain & absolute | |
| Harold Eley |
5532 |
1-Apr 61 | 1-26 | ||
| John Pomietlarz |
5122 |
1-Apr-61 | TG-2 | ||
| Bob Cheston |
5730 |
9-Oct-61 | Fauvel AV-36 | ||
| Ed McClanahan |
7864 |
9-Oct-61 |
1-23 |
to USA | |
| Ross Grady |
6468 |
7-Oct-62 | 1-23G | ||
| Don McLaughlin | 62 | ||||
| Eric Steisslinger | 16-Oct-65 | ||||
| Richard Mamini |
5796 |
17-Oct-65 | L-Spatz | ||
| Leroy Wood | 6400 (est) |
10-Apr-66 |
1-23G | ||
| Bill Thudium | 6550 (est) | 10-Apr-66 | BG-12 | ||
| Wilbur Eley |
5486 |
6-Oct-66 | 1-26 | ||
| Adolf Kohlfuerst | 10-Oct-66 | SF-26 | |||
| Calvin Garvie | 10-Oct-66 | L Spatz | |||
| Rene Bosshart | 10-Oct-66 | ||||
| Wolf Mix | 7418/9704 | 10-Oct-66 | SF-26 | gain & absolute | |
| Kerry Bissell |
5700 |
10-Oct-66 | Viking | ||
| Alfred Schmied | Oct-68 | Ka6CR | |||
| Eric Mortis |
5508 |
10-Oct-66 | HP11A | ||
| Jack Kane | 68 | ||||
| Dave Marsden |
6563 |
13-Oct-68 | HP14 | ||
| Joseph Gegenbauer |
5090 |
13-Oct-68 | 1-23D | ||
| Klaus Stachow |
5116 |
17-Oct-68 | SF-26 | ||
| Harry Byrt |
6096 |
3-Oct-68 | HP11A | ||
| Bruce Hea |
5456 |
19-Oct-69 | L-Spatz | ||
| Garnet Thomas |
6264 |
9-Oct-71 | 1-23 | ||
| Ron Innes | 9-Oct-71 | Libelle | |||
| Dan Pandur | 9-Oct-71 | Libelle | |||
| Don Seller | 9-Oct-71 | 1-23 | |||
| James Brayshaw |
7300 |
9-Oct-71 | Ka6CR | ||
| Chester Zwarych | Oct-73 | 2-33 | |||
| Norman Ronaasen |
5334 |
Oct 73 | Bergfalke | ||
| Larry Riegert |
6700 |
Oct 73 | Bergfalke | ||
| Malcolm McPhee | Oct-74 | 1-23 | |||
| Jim Strong | 74 | ||||
| Ken Walker | 74 | ||||
| Henry Schroeder |
6096 |
12-Oct-74 | 1-23 | ||
| David Tustin |
6553 |
8-Oct-76 | HP14T | ||
| Lee Coates |
5288 |
8-Oct-76 | SF-26 | ||
| J. R. (Rick) Matthews |
6400 |
10-Oct-76 | ASW-19 | ||
| C. G. Pedersen |
5242 |
10-Oct-76 | |||
| John Parkinson |
5895 |
5-Aug-78 | Dart | ||
| Rainer Zimm |
5995 |
6-Aug-78 | |||
| Donald Rowe |
6560 |
31-Jul-79 | Open Cirrus | ||
| Gary Kneier |
6910 |
6-Aug-79 | Open Cirrus | ||
| David Hennigar |
5486 |
5-Oct-79 | HP14T | ||
| Andrew Jackson |
5913 |
7-Oct-79 | Libelle 201 | ||
| Ken Cathro | 6187 |
7-Oct-79 |
Libelle | ||
| Kenneth O'Toole | 6095 |
80 |
ASW 15B | ||
| George Dunbar |
5310 |
31-Oct-81 | Dart | ||
| Bruce Hea (not Dia) | 7841/10485 | 31-Oct-81 | Libelle 201 | gain & absolute | |
| Bruce Anderson |
5900 |
1-Nov-81 | Phoebus C | ||
| Hans Konig |
6416 |
1-Nov-81 | Mini Nimbus | ||
| Bruce Nicmans |
5936 |
2-Aug-82 | Lark IS29 | ||
| Kevin Bennett |
6570 |
2-Aug-82 | Open Cirrus | ||
| Stephan Weinhold |
6550 |
2-Aug-82 | Kestrel 19 | ||
| Fritz Bortenlanger |
5601 |
2-Aug-82 | Jantar Std | ||
| Ursula Wiese | 5720/8035 | 23-Oct-82 | Ka6CR | fem gain & abs | |
| Francis Parsons |
6090 |
Oct-82 | Libelle | ||
| Russ Flint |
6248 |
26-Jul-83 | Std Cirrus | ||
| David George |
5639 |
8-Oct-83 |
Ka6E | ||
| Jay Beattie |
8153 |
8-Oct-83 |
1-23 |
height gain | |
| Cecil Sorensen |
5730 |
8-Oct-83 | 1-35 | ||
| Ronald Lien |
5121 |
8-Oct-83 | 1-23H | ||
| Bruce Anderson |
5610 |
8-Oct-83 | Ventus B | ||
| Simon MacIntosh |
5639 |
8-Oct-83 | ASW 15 | ||
| Graham Parkinson | 8-Oct-83 | ||||
| Pat Wickenhauser |
6218 |
6-Oct-84 | 1-35 | ||
| Gary Ockwell |
6431 |
6-Oct-84 | 1-26 | ||
| Jerry Vesely |
5486 |
6-Oct-84 | VES 1 | ||
| Terry Southwood |
5400 |
13-Oct-84 | ASW 20 | ||
| Bruno Schrein |
6900 |
13-Oct-84 | Blanik | ||
| Mike Apps |
7072 |
13-Oct-84 | ASW 20FP | ||
| Bruce Friesen |
6127 |
13-Oct-84 | 1-23 | ||
| Alan Sunley |
5730 |
13-Oct-84 | ASW 15 | ||
| James Feyerer |
5638 |
13-Oct-84 | Jantar Std | ||
| Gerhardt Schaefer |
5029 |
14-Oct-84 | ASW 15 | ||
| Mike Thompson |
5130 |
3-Aug-89 |
Grob 102 | ||
| Jim Oke |
5830 |
3-Aug-89 |
ASW 20 | ||
| David Mercer |
5100 |
9-Oct-89 |
1-26 | ||
| Stewart Midwinter |
5610 |
9-Oct-89 |
Jantar Std | ||
| Bryan Florence |
5030 |
9-Oct-89 |
Astir G103 | ||
| Sylvain Larue |
6710 |
9-Oct-90 |
Dart 17R | ||
| Vaughan Allan |
5450 |
9-Oct-90 |
Mini Nimbus | ||
| Buzz Burwash |
5450 |
9-Oct-90 |
ASW 20FP | ||
| Jay Poscente |
6210 |
28-Jul-91 | Mini Nimbus | ||
| Deirdre Duffy | 6575/8986 | 15-Oct-91 | ASW 15B | fem gain & abs | |
| Rodney Crutcher |
5410 |
14-Oct-91 | ASW 20 | ||
| Neville Robinson |
5307 |
14-Oct-91 | BG-12B | ||
| Donald Matheson |
5100 |
8-Oct-92 |
RHJ-8 | ||
| David Morgan |
5307 |
10-Oct-92 | HP-11 AT | ||
| David Fowlow |
5270 |
31-Jul-93 | Blanik L13 | ||
| Karla Hopp | 5550/7986 |
9-Oct-94 |
1-26 | 1-26 gain & fem abs | |
| Keith Bjorndahl |
5480 |
8-Oct-94 |
1-26 |
1-26 gain/abs | |
| Mike Cook |
5760 |
9-Oct-94 |
K5 | ||
| Randy Blackwell |
5019 |
8-Oct-95 |
1-26B | ||
| David Mercer (not Dia) |
8458 |
8-Oct-95 | RS-15 | height gain | |
| Todd Benko | 6130/8763 |
9-Oct-95 |
1-26 |
1-26 gain & abs | |
| Graeme Craig |
5290 |
9-Oct-95 |
ASW 15 | ||
| Trevor Florence |
5730 |
10-Oct-96 | Astir CS77 | ||
| John Broomhall |
5600 |
10-Oct-96 | ASW 15B | ||
| Neil Gegenbauer |
5150 |
11-Oct-96 | Astir CS77 | ||
| Michael Swendsen |
5760 |
11-Oct-96 | HP-16 | ||
| Aaron Archibald |
5440 |
14-Oct-96 | LS-4 | ||
| Darwin Roberts |
5530 |
8-Oct-00 | HP-16 | ||
| Orlan Dowdeswell |
5190 |
8-Oct-00 | Jantar | ||
| Henning Mortensen |
5030 |
8-Oct-00 | Jantar | ||
| Alan Spurgeon |
5160 |
6-Oct-01 | PW-5 | ||
| Ron Cattaruzza |
5390 |
6-Oct-01 | ASW-15 | ||
| Henning Mortensen |
5420 |
8-Oct-01 | Std. Cirrus | ||
| Derek Brown |
6200 |
9-Oct-02 | Blanik L13 | ||
| Alan Hoar |
5900 |
9-Oct-02 | Std. Cirrus | ||
| Scot Harrison |
5210 |
9-Oct-02 | Blanik L13 | ||
| David Rolland |
6420 |
9-Oct-02 | Std. Cirrus | ||
| Bob Hagen |
5310 |
9-Oct-02 | Puchacz | ||
| Mel Blackburn |
6035 |
9-Oct-02 | PW-5 | ||
| David Mercer |
113.0 kph |
13-Oct-02 | Genesis 2 | 100
km speed to goal - Club class |
|
| Mark Westphal |
5470 |
8-Oct-03 | DG-400 | ||
| Terry Hooper |
5650 |
8-Oct-03 | Jantar | ||
| David Mercer |
142.0
kph / |
6-Oct-04 | Genesis 2 | 100
km speed triangle - Open/Club |
|
| David Mercer |
167.1
kph / |
7-Oct-04 | Genesis 2 | 100
km speed to goal - Open/Club |
|
| Gordon Taciuk |
7040 |
7-Oct-04 | Jantar | ||
| John Mulder |
5074 |
30-Sep-07 | Jantar | ||