1930	24 Jun	Hawkhill	Mile	4:44.2	1
1930	5 July	Easter Road	Mile hcp	4:27.2 off 100 yds	1
1931	23 June	Hawkhill	Mile	4:30.0	1
1931	23 June	Hawkhill	Half mile (Sco v Ire)	2:02.4	1
1931	6 June	Hawick	Mile hcp	4:33.0 off 60 yds	1
1931	22 May	Inverleith	Mile hcp	4:25.0 off 75 yds	1
1931	27 June	Hampden	Mile (Sco champs.)	4:35.	2
1931	26 June	Hampden	Half mile (Sco champs.)	2:03.8	1 heat
1932	16 July	Powderhall	Half mile (Sco v Ire)	2:02.9	2
1932	11 June	Hawick	Half mile hcp	1:59.6 off 16 yds	1
1932	24 June	Hampden	Half mile	2:01.0	2 heat
1932	25 June	Hampden	Half mile (Sco champs.)	1:59.0	2
1932	25 June	Hampden	Mile (Sco champs.)	4:29.	2
1932	8 Jun	Hawkhill	Half mile	2:05.2	1
1932	8 Jun	Hawkhill	Mile	4:38.0	1
1932	4 July	Inverleith	Mile	4:52.2	2
1932	7 May	Inverleith	Mile hcp	4:22.8 off 30 yards	2
1932	30 July	Powderhall	2 miles	9:59.6	1
1933	16 June	Meadows (Edinburgh)	Mile	4:28.2	1
1933	16 June	Meadows (Edinburgh)	Half mile	2:07.0	1
1933	27 May	Hampden	1000y hcp	2:16.8 full distance	1
1933	14 May	Inverleith	Mile hcp	4:20.0 off 20 yds	1
1933	13 July	Craiglockhart	Mile	4:28.0	1
1933	14 June	Hawkhill	Mile	4:25.8	1
1933	22 May	Hampden	Half mile hcp	1:58.4 off 8 yds (heavy track)	1
1933	24 June	Hampden	Mile (Sco champs.)	4:20.6	2
1933	8 July	Powderhall	2 miles team race		1
1934	3 July	Helenvale Park	2 miles team race	9:29.0	1
1934	21 May	Ibrox	3 miles hcp	14:46.4 off 40 yds	1
1934	13 May	Inverleith	Mile hcp	4:24.5 off 10 yds	2
1934	4 July	Craiglockhart	Mile	4:25.8	1
1934	16 June	Penicuik	Mile	4:36.8	1
1934	12 June	Hawkhill	Mile	4:27.8	1
1934	19 June	Hawkhill	Mile	4:32.6	1
1934	4 August	London	3 miles (Empire Games)	14:50.	7
1934	5 August?	London	Mile (Empire Games)		unplaced in h2
1934	26 May	Hampden	Half mile opening leg in relay	1:59.0	1
1934	23 June	Hampden	Mile (Sco champs.)	4:27.	2
1935	5 August	Glasgow	Mile hcp	4:20.4 off 20 yds	1
1935	29 June	Hampden	3 miles	14:44.8	3
1935	22 June	Hampden	3 miles (Sco champs.)	14:46.4	1
1935	1 June	Hampden	3 miles team race	14:59.4	1
1935	20 August	Helenvale Park	1 ½ miles hcp	6:46. off 25 yds	3
1935	20 May	Ibrox	3 miles hcp	14:31.0 off 75 yds	1
1935	4 June	Meadowbank	Mile	4:31.6	1
1935	27 July	Shawfield	2 miles hcp	9:16.2 off 45 yds	1
1935	22 July	Berwick	2 miles		1
1937	10 July	Carntyne AAC sports , Shettleston	2 miles	9:38.0	1
1937	12 June	Powderhall	Mile hcp	4:27.0 off 25 yds	2
1937	8 June	Hawkhill	Mile	4:30.2	1
1937	22 June	New Myreside	Mile	4:29.5	1
1937	8 July	Craiglockhart	3 miles	14:37.5	1
1937	30 June	Craiglockhart	3 miles	14:51.4	1
1937	15 June	Goldenacre	3 miles	14:57.5	1
1937	5 June	Hampden	3 miles	14:59.2	1
1937	8 June	Penicuik	Mile	4:40.2	1
1937	17 Aug	Helenvale Park	2 miles	9:21.5	2
1938	30 July	Shawfield	Mile hcp	4:21.0 off 14 yds	1
1938	31 May	Hampden	3 miles	15:00.8	1
1938	14 June	Craiglockhart	3 miles	14:41.2	1
1938	25 June	Hampden	3 miles (Sco champs.)	15:06.0	2
1938	7 June	Goldenacre	3 miles	15:06.6	1
1938	9 July	Dundee	Mile hcp	4:20.6 off 90 yds	1
1939	20 June	New Myreside	Mile	4:39.2	1
1939	28 Jun	Helenvale Park	1 ½ miles	6:58.0	3
1939	8 June	New Meadowbank	Mile	4:36.6	1
1939	13 June	New Meadowbank	Mile	4:35.4	1

 Laidlaw was badly injured at a meeting at Firhill Park on 18th May 1936 and missed the track season.

1934 Empire Games 2 miles, The Scotsman:

„Scottish hopes in the 3 miles were raised by the excellent running of J.P. Laidlaw for about the first two miles. He was lying third at that stage, but the uneven pace and the hard track told heavily against him in the closing stages, and he fell behind to seventh place. His time was approximately 14 minutes 50 seconds.“

Many thanks to Alex Wilson for the photograph and the work done compiling this list.