Sebastian Onsum Kolsrud
Men / born 2014
31
starts
143
top FINA
12
personal best events
PP Over The Years
2025: 7.9 / 2026: 6.4
100m Butterfly Progress
2 swims recordedAll disciplinesBest Improvements
50m Butterfly: -17.7% at SaS Open
50m Breaststroke: -8.8% at Vikingsvøm 2026
400m Freestyle: -8.1% at Zeekit LÅMØ Sør 2026
50m Butterfly: -7.6% at Horten Open 2025
100m Butterfly: -7.3% at Zeekit LÅMØ Sør 2026
PBs
100m Breaststroke: 2.04,96
100m Butterfly: 2.03,38
100m Freestyle: 1.35,60
200m Backstroke: 3.49,82
200m Breaststroke: 4.25,84
200m Freestyle: 3.19,62
200m Medley: 3.56,08
400m Freestyle: 6.45,03
50m Backstroke: 49,25
50m Breaststroke: 55,03
50m Butterfly: 47,98
50m Freestyle: 38,05
Top 3 FINA
143 / 50m Freestyle / 38,05
143 / 400m Freestyle / 6.45,03
124 / 50m Freestyle / 39,82
SaS Open25 Apr 2026 / Sandefjord
| Discipline | Start | Result | FINA | PP | PB +/- |
|---|---|---|---|---|---|
| 50m Breaststroke National rankings | 55,26 | 55,03 | 93 | 1.28 | -0.4 |
| 50m Butterfly National rankings | 58,33 | 47,98 | 87 | 3.76 | -17.7 |
| 50m Freestyle National rankings | 39,82 | 38,05 | 143 | 6.28 | -4.4 |
Zeekit LÅMØ Sør 202610 Apr 2026 / Horten
| Discipline | Start | Result | FINA | PP | PB +/- |
|---|---|---|---|---|---|
| 100m Butterfly National rankings | 2.13,08 | 2.03,38 | 57 | 1.31 | -7.3 |
| 200m Backstroke National rankings | 3.49,82 | DISK | 0 | 0 | n/a |
| 200m Breaststroke National rankings | 4.25,84 | DISK | 0 | 0 | n/a |
| 200m Medley National rankings | 3.56,08 | DISK | 0 | 0 | n/a |
| 400m Freestyle National rankings | 7.20,58 | 6.45,03 | 143 | 8.65 | -8.1 |
Vikingsvøm 202607 Feb 2026 / Horten
| Discipline | Start | Result | FINA | PP | PB +/- |
|---|---|---|---|---|---|
| 100m Breaststroke National rankings | 2.10,88 | 2.04,96 | 86 | 2.3 | -4.5 |
| 100m Butterfly National rankings | 2.13,08 | 46 | 25 | n/a | |
| 200m Medley National rankings | 3.56,08 | 98 | 25 | n/a | |
| 50m Breaststroke National rankings | 1.00,59 | 55,26 | 92 | 3.7 | -8.8 |
Fjordsvøm22 Nov 2025 / Sandefjord
| Discipline | Start | Result | FINA | PP | PB +/- |
|---|---|---|---|---|---|
| 200m Freestyle National rankings | 3.34,31 | 3.19,62 | 120 | 5.66 | -6.9 |
| 200m Medley National rankings | DISK | 0 | 0 | n/a | |
| 50m Butterfly National rankings | 58,33 | 1.00,92 | 42 | 0.02 | 4.4 |
| 50m Freestyle National rankings | 39,94 | 39,82 | 124 | 2.22 | -0.3 |
Slottsfjell Open01 Nov 2025 / Tønsberg
| Discipline | Start | Result | FINA | PP | PB +/- |
|---|---|---|---|---|---|
| 100m Freestyle National rankings | 1.36,58 | 1.35,60 | 103 | 1.8 | -1 |
| 100m Medley National rankings | DISK | 0 | 0 | n/a | |
| 200m Breaststroke National rankings | 4.25,84 | 92 | 25 | n/a | |
| 400m Freestyle National rankings | 7.20,58 | 111 | 25 | n/a | |
| 50m Freestyle National rankings | 41,42 | 39,94 | 123 | 4.16 | -3.6 |
Horten Open 202520 Sept 2025 / Horten
| Discipline | Start | Result | FINA | PP | PB +/- |
|---|---|---|---|---|---|
| 200m Backstroke National rankings | 3.49,82 | 97 | 25 | n/a | |
| 200m Freestyle National rankings | 3.34,31 | 97 | 25 | n/a | |
| 50m Butterfly National rankings | 1.03,13 | 58,33 | 48 | 0.95 | -7.6 |
| 50m Freestyle National rankings | 42,62 | 41,42 | 110 | 2.92 | -2.8 |
Tønsberg Sommerstevne24 May 2025 / Tønsberg
| Discipline | Start | Result | FINA | PP | PB +/- |
|---|---|---|---|---|---|
| 100m Breaststroke National rankings | 2.19,99 | 2.17,86 | 64 | 0.77 | -1.5 |
| 100m Freestyle National rankings | 1.36,58 | 1.43,70 | 80 | 0.02 | 7.4 |
| 50m Backstroke National rankings | 51,03 | 49,25 | 90 | 2.19 | -3.5 |
| 50m Breaststroke National rankings | 1.01,27 | 1.01,22 | 67 | 0.62 | -0.1 |
| 50m Butterfly National rankings | 1.03,13 | 38 | 25 | n/a | |
| 50m Freestyle National rankings | 44,50 | 42,62 | 101 | 3.05 | -4.2 |