Jan Erik Grenne
Men / born 2009
48
starts
3078
top FINA
15
personal best events
PP Over The Years
2023: 8.9 / 2024: 6.5 / 2025: 140.2 / 2026: 4.2
100m Backstroke Progress
2 swims recordedAll disciplinesBest Improvements
200m Medley: -9.7% at Zeekit LÅMØ Sør
100m Breaststroke: -6.1% at Slottsfjell Open
100m Butterfly: -5.3% at Slottsfjell Open
200m Backstroke: -4.4% at Zeekit LÅMØ Sør
200m Butterfly: -4.3% at Zeekit LÅMØ Sør
PBs
100m Backstroke: 1.18,90
100m Breaststroke: 1.18,64
100m Butterfly: 1.08,38
100m Freestyle: 1.01,80
1500m Freestyle: 20.39,98
200m Backstroke: 2.42,04
200m Breaststroke: 3.03,37
200m Butterfly: 1.13,45
200m Freestyle: 2.22,39
200m Medley: 2.42,11
400m Freestyle: 5.06,53
50m Backstroke: 32,61
50m Breaststroke: 35,18
50m Butterfly: 30,06
50m Freestyle: 28,25
Top 3 FINA
3078 / 200m Butterfly / 1.13,45
679 / 200m Butterfly / 2.01,56
381 / 100m Freestyle / 1.01,80
Vikingsvøm 202607 Feb 2026 / Horten
| Discipline | Start | Result | FINA | PP | PB +/- |
|---|---|---|---|---|---|
| 400m Freestyle National rankings | 4.57,16 | 5.06,53 | 331 | 2.36 | 3.2 |
| 50m Backstroke National rankings | 32,61 | 34,19 | 270 | 0.72 | 4.8 |
| 50m Freestyle National rankings | 28,14 | 28,25 | 349 | 9.41 | 0.4 |
Bærum Open05 Dec 2025 / Nadderud
| Discipline | Start | Result | FINA | PP | PB +/- |
|---|---|---|---|---|---|
| 50m Backstroke National rankings | 33,51 | 32,61 | 311 | 22.97 | -2.7 |
| 50m Breaststroke National rankings | 35,72 | 35,18 | 356 | 23.92 | -1.5 |
Fjordsvøm22 Nov 2025 / Sandefjord
| Discipline | Start | Result | FINA | PP | PB +/- |
|---|---|---|---|---|---|
| 200m Freestyle National rankings | 2.17,34 | 2.22,39 | 332 | 1.87 | 3.7 |
| 50m Freestyle National rankings | 28,14 | 28,70 | 333 | 4.21 | 2 |
Høstduppen09 Nov 2025 / Fredrikstad
| Discipline | Start | Result | FINA | PP | PB +/- |
|---|---|---|---|---|---|
| 50m Backstroke National rankings | 33,51 | 33,53 | 286 | 7.16 | 0.1 |
| 50m Breaststroke National rankings | 35,72 | 35,74 | 340 | 10.12 | 0.1 |
| 50m Butterfly National rankings | 29,97 | 30,49 | 341 | 5.06 | 1.7 |
Slottsfjell Open01 Nov 2025 / Tønsberg
| Discipline | Start | Result | FINA | PP | PB +/- |
|---|---|---|---|---|---|
| 100m Breaststroke National rankings | 1.23,74 | 1.18,64 | 347 | 44.4 | -6.1 |
| 100m Butterfly National rankings | 1.12,20 | 1.08,38 | 339 | 39.23 | -5.3 |
| 100m Freestyle National rankings | 1.00,61 | 1.01,80 | 381 | 5.51 | 2 |
| 50m Butterfly National rankings | 29,97 | 30,06 | 356 | 10.21 | 0.3 |
| 50m Freestyle National rankings | 28,14 | 30,81 | 269 | 0.07 | 9.5 |
Aquarama Open30 May 2025 / Kristiansand
| Discipline | Start | Result | FINA | PP | PB +/- |
|---|---|---|---|---|---|
| 100m Freestyle National rankings | 1.00,61 K | 1.03,81 | 347 | 25 | n/a |
| 1500m Freestyle National rankings | 21.59,46 K | 20.39,98 | 318 | 25 | n/a |
| 50m Backstroke National rankings | 34,29 K | 34,99 | 252 | 25 | n/a |
| 50m Breaststroke National rankings | 36,74 K | 37,77 | 288 | 25 | n/a |
| 50m Butterfly National rankings | 29,97 K | 31,84 | 300 | 25 | n/a |
| 50m Freestyle National rankings | 28,14 K | 29,22 | 315 | 25 | n/a |
Zeekit LÅMØ Sør14 Mar 2025 / Mandal
| Discipline | Start | Result | FINA | PP | PB +/- |
|---|---|---|---|---|---|
| 200m Backstroke National rankings | 2.41,38 | 2.42,04 | 277 | 5.93 | 0.4 |
| 200m Breaststroke National rankings | 3.04,24 | 3.03,37 | 281 | 11.96 | -0.5 |
| 200m Butterfly National rankings | 1.16,75 | 1.13,45 | 3078 | 2873.82 | -4.3 |
| 200m Medley National rankings | 2.41,63 | 2.42,11 | 302 | 7.35 | 0.3 |
| 400m Freestyle National rankings | 4.57,12 | 5.08,32 | 326 | 1.72 | 3.8 |
Aquarama Open07 Jun 2024 / Kristiansand
| Discipline | Start | Result | FINA | PP | PB +/- |
|---|---|---|---|---|---|
| 100m Backstroke National rankings | 1.19,53 | 1.18,90 | 229 | 8.51 | -0.8 |
| 100m Butterfly National rankings | 1.16,75 | 1.25,13 | 176 | 0.01 | 10.9 |
| 200m Backstroke National rankings | 2.42,58 | 2.53,31 | 226 | 0.21 | 6.6 |
| 200m Breaststroke National rankings | 3.04,24 | 3.07,83 | 261 | 2.71 | 1.9 |
| 400m Freestyle National rankings | 5.22,81 | 5.46,87 | 229 | 0.14 | 7.5 |
| 50m Backstroke National rankings | 35,23 | 37,00 | 213 | 0.41 | 5 |
| 50m Breaststroke National rankings | 37,32 | 41,17 | 222 | 0.03 | 10.3 |
| 50m Butterfly National rankings | 31,92 | 33,80 | 250 | 0.36 | 5.9 |
| 50m Freestyle National rankings | 30,20 | 31,43 | 253 | 0.89 | 4.1 |
Marienlyst open26 Apr 2024 / Drammen
| Discipline | Start | Result | FINA | PP | PB +/- |
|---|---|---|---|---|---|
| 100m Backstroke National rankings | 1.20,06 | 1.19,53 | 224 | 7.96 | -0.7 |
| 100m Butterfly National rankings | 1.16,75 | 1.21,95 | 197 | 0.14 | 6.8 |
| 200m Freestyle National rankings | 2.34,02 | 2.39,12 | 238 | 1.16 | 3.3 |
| 50m Backstroke National rankings | 35,72 | 36,13 | 229 | 2.99 | 1.1 |
Zeekit LÅMØ Sør15 Mar 2024 / Sandefjord
| Discipline | Start | Result | FINA | PP | PB +/- |
|---|---|---|---|---|---|
| 200m Backstroke National rankings | 2.46,99 | 2.42,58 | 274 | 17.52 | -2.6 |
| 200m Breaststroke National rankings | 3.06,92 | 3.04,24 | 277 | 14.18 | -1.4 |
| 200m Medley National rankings | 3.03,41 | 2.45,68 | 283 | 36.17 | -9.7 |
| 400m Freestyle National rankings | 5.28,90 | 5.22,81 | 284 | 16.51 | -1.9 |
Zeekit LÅMØ Sør17 Mar 2023 / Mandal
| Discipline | Start | Result | FINA | PP | PB +/- |
|---|---|---|---|---|---|
| 200m Backstroke National rankings | 3.26,92 | 3.17,82 | 152 | 7.1 | -4.4 |
| 200m Breaststroke National rankings | 3.38,08 | 3.48,06 | 146 | 0.23 | 4.6 |
| 200m Butterfly National rankings | 1.59,83 | 2.01,56 | 679 | 22.99 | 1.4 |
| 200m Medley National rankings | 3.30,26 | 3.22,42 | 155 | 6.7 | -3.7 |
| 400m Freestyle National rankings | 6.35,37 | 6.22,36 | 171 | 7.68 | -3.3 |