Smallest victories For Sri Lanka Domestic T20 - vs Sri Lanka Army
By runs
Winner | Margin | Balls Rem | Target | Overs | Opposition | Ground | Match Date | Scorecard |
| 6 runs | 0 | 169 | 20.0 | v SL Army | Colombo (Colts) | 5 Apr 2015 | Twenty20 | |
| 9 runs | 0 | 183 | 20.0 | v SL Army | Colombo (NCC) | 2 Apr 2015 | Twenty20 | |
| 10 runs | 0 | 161 | 18.3 | v SL Army | Katunayake | 21 Feb 2019 | Twenty20 | |
| 23 runs | 0 | 165 | 20.0 | v SL Army | Colombo (Moors) | 30 Mar 2012 | Twenty20 | |
| 29 runs | 0 | 147 | 19.2 | v SL Army | Colombo (SSC) | 20 Mar 2021 | Twenty20 | |
| 39 runs | 0 | 135 | 18.0 | v SL Army | Colombo (RPS) | 13 Jan 2016 | Twenty20 | |
| 41 runs | 0 | 145 | 17.4 | v SL Army | Colombo (CCC) | 1 Mar 2007 | Twenty20 |
By wickets
Winner | Margin | Balls Rem | Target | Overs | Opposition | Ground | Match Date | Scorecard |
| 1 wicket | 10 | 149 | 18.2 | v SL Army | Colombo (SSC) | 29 Mar 2012 | Twenty20 | |
| 3 wickets | 2 | 150 | 19.4 | v SL Army | Colombo (Colts) | 26 Mar 2012 | Twenty20 | |
| 4 wickets | 28 | 68 | 15.2 | v SL Army | Colombo (Colts) | 27 Mar 2012 | Twenty20 | |
| 6 wickets | 34 | 103 | 14.2 | v SL Army | Colombo (PSS) | 7 Mar 2018 | Twenty20 | |
| 6 wickets | 17 | 187 | 17.1 | v SL Army | Colombo (PSS) | 25 Feb 2019 | Twenty20 | |
| 6 wickets | 3 | 112 | 19.3 | v SL Army | Colombo (SSC) | 4 Jan 2020 | Twenty20 | |
| 6 wickets | 5 | 149 | 19.1 | v SL Army | Colombo (PSS) | 17 Jan 2020 | Twenty20 | |
| 6 wickets | 13 | 105 | 17.5 | v SL Army | Colombo (NCC) | 4 Mar 2021 | Twenty20 | |
| 7 wickets | 31 | 141 | 14.5 | v SL Army | Colombo (Colts) | 1 Apr 2015 | Twenty20 | |
| 7 wickets | 34 | 124 | 14.2 | v SL Army | Colombo (SSC) | 4 Apr 2015 | Twenty20 | |
| 7 wickets | 46 | 145 | 12.2 | v SL Army | Colombo (SSC) | 6 Apr 2015 | Twenty20 | |
| 7 wickets | 17 | 91 | 15.1 | v SL Army | Colombo (Colts) | 8 Apr 2015 | Twenty20 | |
| 7 wickets | 24 | 160 | 16.0 | v SL Army | Colombo (NCC) | 12 Jan 2016 | Twenty20 | |
| 9 wickets | 58 | 60 | 10.2 | v SL Army | Colombo (CCC) | 2 Mar 2007 | Twenty20 |
By balls remaining in the second innings
Winner | Margin | Balls Rem | Target | Overs | Max | Opposition | Ground | Match Date | Scorecard |
| 3 wickets | 2 | 150 | 19.4 | 20.0 | v SL Army | Colombo (Colts) | 26 Mar 2012 | Twenty20 | |
| 6 wickets | 3 | 112 | 19.3 | 20.0 | v SL Army | Colombo (SSC) | 4 Jan 2020 | Twenty20 | |
| 6 wickets | 5 | 149 | 19.1 | 20.0 | v SL Army | Colombo (PSS) | 17 Jan 2020 | Twenty20 | |
| 1 wicket | 10 | 149 | 18.2 | 20.0 | v SL Army | Colombo (SSC) | 29 Mar 2012 | Twenty20 | |
| 6 wickets | 13 | 105 | 17.5 | 20.0 | v SL Army | Colombo (NCC) | 4 Mar 2021 | Twenty20 | |
| 7 wickets | 17 | 91 | 15.1 | 18.0 | v SL Army | Colombo (Colts) | 8 Apr 2015 | Twenty20 | |
| 6 wickets | 17 | 187 | 17.1 | 20.0 | v SL Army | Colombo (PSS) | 25 Feb 2019 | Twenty20 | |
| 7 wickets | 24 | 160 | 16.0 | 20.0 | v SL Army | Colombo (NCC) | 12 Jan 2016 | Twenty20 | |
| 4 wickets | 28 | 68 | 15.2 | 20.0 | v SL Army | Colombo (Colts) | 27 Mar 2012 | Twenty20 | |
| 7 wickets | 31 | 141 | 14.5 | 20.0 | v SL Army | Colombo (Colts) | 1 Apr 2015 | Twenty20 | |
| 7 wickets | 34 | 124 | 14.2 | 20.0 | v SL Army | Colombo (SSC) | 4 Apr 2015 | Twenty20 | |
| 6 wickets | 34 | 103 | 14.2 | 20.0 | v SL Army | Colombo (PSS) | 7 Mar 2018 | Twenty20 | |
| 7 wickets | 46 | 145 | 12.2 | 20.0 | v SL Army | Colombo (SSC) | 6 Apr 2015 | Twenty20 | |
| 9 wickets | 58 | 60 | 10.2 | 20.0 | v SL Army | Colombo (CCC) | 2 Mar 2007 | Twenty20 |
Tied matches
Team 1 | Team 2 | Ground | Match Date | Scorecard |
| SL Army | Colombo CC | Nondescripts Cricket Club Ground, Colombo | 27 Feb 2018 | Twenty20 |
| SL Army | Saracens | Colombo Cricket Club Ground | 1 Mar 2018 | Twenty20 |
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