| 2010-09-17 | Davis Cup G1 PO: LAT vs POL | Carpet | RR | 198 |  Jerzy Janowicz | 519 |  Karlis Lejnieks | 7-5 6-4 7-6(3) | H2H | 5 | - | - | - | - | - | - | - |
| 2010-03-05 | Davis Cup G1 R1: UKR vs LAT | Hard | RR | 163 |  Ivan Sergeyev | 1451 | Karlis Lejnieks | 6-4 6-7(6) 6-1 | H2H | 3 | - | - | - | - | - | - | - |
| 2009-03-06 | Davis Cup G2 R1: LAT vs MDA | Carpet | RR | 467 | Karlis Lejnieks | 872 |  Radu Albot | 7-6(6) 6-3 | H2H | 3 | - | - | - | - | - | - | - |
| 2008-10-20 | St. Petersburg | Hard | R16 | 16 |  Fernando Verdasco (3) | 664 | Karlis Lejnieks (WC) | 6-1 6-3 | H2H | 3 | 65 | 2 | 4 | 62.8% | 88.9% | 62.5% | 1/1 |
| 2008-10-20 | St. Petersburg | Hard | R32 | 664 | Karlis Lejnieks (WC) | 228 |  Alexander Kudryavtsev (WC) | 3-6 7-6(1) 6-3 | H2H | 3 | 112 | 14 | 6 | 60.0% | 73.3% | 42.0% | 10/13 |
| 2008-02-08 | Davis Cup G1 R1: MKD vs LAT | Clay | RR | 1107 | MKDIlija Martinoski | 953 | Karlis Lejnieks | 6-3 6-4 | H2H | 3 | - | - | - | - | - | - | - |
| 2007-09-21 | Davis Cup G2 F: LAT vs MON | Carpet | RR | 915 | Karlis Lejnieks | 298 |  Benjamin Balleret | 7-6(4) 6-2 | H2H | 3 | - | - | - | - | - | - | - |
| 2007-07-20 | Davis Cup G2 R2: FIN vs LAT | Clay | RR | 699 |  Juho Paukku | 1037 | Karlis Lejnieks | 6-1 6-4 | H2H | 3 | - | - | - | - | - | - | - |
| 2006-07-21 | Davis Cup G2 PO: LAT vs RSA | Clay | RR | 675 |  Fritz Wolmarans | 1537 | Karlis Lejnieks | 6-0 6-0 | H2H | 3 | - | - | - | - | - | - | - |
| 2006-04-07 | Davis Cup G2 R1: POL vs LAT | Carpet | RR | 359 | Michal Przysiezny | - | Karlis Lejnieks | 6-2 7-6(1) | H2H | 3 | - | - | - | - | - | - | - |
