> Sri Lanka - 400 metres - men - national record progression

44.61 - 1. Sugath Thilakaratne - 20/07/1998 - Fukuoka/JPN - 12.ASC
45.18 - 1. Sugath Thilakaratne - 23/05/1998 - Kaoshiung/TPE

> Sri Lanka - 400 metres - men - national indoor record progression

46.76 - 1. Sugath Tilakaratne - 12/02/2001 - Vienna/AUT
48.03 - 7. Sugath Tilakaratne - 11/02/2001 - Dortmund/GER
48.55 - 7. Sugath Tilakaratne - 04/02/2001 - Stuttgart/GER

> Sri Lanka - 400 metres - men - national U20 record progression

45.78 - 1. Aruna Darshana - 31/10/2018 - Colombo/SRI - Army Ch.
45.79 - 1. Aruna Darshana - 08/06/2018 - Gifu/JPN - 18.ASCU20
46.55 - 1. Aruna Darshana - 05/05/2018 - Colombo/SRI - South Asian U20 Ch.
46.56 - 2. Manoj Pushpakumara - 13/06/2004 - Ipoh/MAS - 11.ASCU20
47.08?-  . Manoj Pushpakumara - 28/10/2002 - Bangkok/THA - 10.ASCU20

> Sri Lanka - 800 metres - men - national record progression

1:47.13 - 2. Indunil Herath - 16/06/2018 - Nairobi/KEN - Prison Ch.
1:47.56 - 1. Ranjit Subasinghe - 25/12/1993 - Dhaka/BAN - South Asian Games

> Sri Lanka - 800 metres - men - national indoor record progression

1:49.45 - 2. Indunil Herath - 20/09/2017 - Ashgabat/TKM - 05.ASIG
1:50.91 - 1. Indunil Herath - 19/09/2017 - Ashgabat/TKM - 05.ASIG/sf1
1:53.79 - 1. Indunil Herath - 18/09/2017 - Ashgabat/TKM - 05.ASIG/h2
1:57.26 - 3. Indunil Herath - 19/02/2016 - Doha/QAT - 07.AIC/h1
2:06.53 -  . Prince Satkunarajah - 13/12/2014 - Eaubonne/FRA