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Jonathan Kastberg

born 2011 · male · 🇸🇪 Sweden · Simklubben Poseidon

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Results period: 2025/26 (current)2024/252023/242022/23All-time

The current season is incomplete; the ranking shows results available to date without projections.

Meets
12
Swims
53
Best FINA points
296

Progression — all-time

100 m butterfly 50 m pool
10 swims · best time 1:20.89 · 19.11 faster than the first swim
1:20.89 1:20.001:30.001:40.00 10.2308.2405.2503.26
100 m butterfly 25 m pool
10 swims · best time 1:23.59 · 9.73 faster than the first swim
1:23.59 1:25.001:30.001:35.00 04.2411.2406.2501.26
100 m freestyle 25 m pool
10 swims · best time 1:08.07 · 13.15 faster than the first swim
1:08.07 1:10.001:15.001:20.00 08.2305.2403.2512.25
50 m freestyle 25 m pool
9 swims · best time 31.29 · 5.11 faster than the first swim
31.29 32.0034.0036.00 03.2410.2405.2512.25
200 m freestyle 50 m pool
9 swims · best time 2:32.89 · 26.10 faster than the first swim
2:32.89 2:30.002:40.002:50.003:00.00 06.2401.2509.2504.26
50 m butterfly 50 m pool
7 swims · best time 34.54 · 8.70 faster than the first swim
34.54 35.0040.00 09.2307.2405.2503.26
50 m butterfly 25 m pool
7 swims · best time 35.48 · 7.55 faster than the first swim
35.48 35.0040.00 08.2305.2403.2512.25
200 m freestyle 25 m pool
7 swims · best time 2:34.20 · 40.72 faster than the first swim
2:34.20 2:40.003:00.00 08.2305.2401.2510.25

Road to the Olympics

Season-best results from 2025/26 against Paris 2024 bronze and the qualifying standard (OQT).

EventPoolTimeTargetWOZMissing
50 freestyle 50 m pool 31.47 Olympic bronze 21.56
record: Florent Manaudou		 68.5% +9.91
200 freestyle 50 m pool 2:32.89 Olympic bronze 1:44.79
record: Luke Hobson		 68.5% +48.10
200 medley 50 m pool 3:04.15 Olympic bronze 1:56.00
record: Wang Shun		 63.0% +1:08.15
100 butterfly 50 m pool 1:20.89 Olympic bronze 50.45
record: Ilya Kharun		 62.4% +30.44
100 backstroke 50 m pool 1:26.75 Olympic bronze 52.39
record: Ryan Murphy		 60.4% +34.36
200 butterfly 50 m pool 3:09.93 Olympic bronze 1:52.80
record: Ilya Kharun		 59.4% +1:17.13

Season-best results

EventPoolTimeFINA ptsWhere
50 m backstroke 50 m pool 39.72 208 3 Jul 2026 · LH-Games 2026
50 m backstroke 25 m pool 39.62 173 6 Dec 2025 · KM 2025
100 m backstroke 50 m pool 1:26.75 210 3 Jul 2026 · LH-Games 2026
200 m backstroke 25 m pool 3:05.90 183 13 Dec 2025 · Sim à Lund 2025
50 m breaststroke 25 m pool 41.75 213 13 Dec 2025 · Sim à Lund 2025
100 m breaststroke 50 m pool 1:37.71 197 11 Apr 2026 · Sydsim Swim Meet
100 m breaststroke 25 m pool 1:34.26 201 13 Dec 2025 · Sim à Lund 2025
50 m butterfly 50 m pool 34.54 268 3 Jul 2026 · LH-Games 2026
50 m butterfly 25 m pool 35.48 230 5 Sep 2025 · Poseidon Team Cup 2025
100 m butterfly 50 m pool 1:20.89 228 3 Jul 2026 · LH-Games 2026
100 m butterfly 25 m pool 1:23.59 186 20 Mar 2026 · Öresund Meeting 2026
200 m butterfly 50 m pool 3:09.93 196 22 May 2026 · Citadellsim 2026
200 m butterfly 25 m pool 3:20.20 152 22 Nov 2025 · USM (25m) 2025 regionfinal Ystad
50 m freestyle 50 m pool 31.47 293 22 May 2026 · Citadellsim 2026
50 m freestyle 25 m pool 31.29 267 20 Mar 2026 · Öresund Meeting 2026
100 m freestyle 25 m pool 1:08.07 285 20 Mar 2026 · Öresund Meeting 2026
200 m freestyle 50 m pool 2:32.89 296 3 Jul 2026 · LH-Games 2026
200 m freestyle 25 m pool 2:34.20 267 13 Dec 2025 · Sim à Lund 2025
400 m freestyle 25 m pool 5:44.73 233 20 Sep 2025 · Poseidontävling 4-2025
100 m medley 25 m pool 1:20.41 230 6 Dec 2025 · KM 2025
200 m medley 50 m pool 3:04.15 237 11 Apr 2026 · Sydsim Swim Meet
200 m medley 25 m pool 3:00.99 222 5 Sep 2025 · Poseidon Team Cup 2025

Recent swims

DateMeetEventTimePts
3 Jul 2026 LH-Games 2026 50 butterfly 34.54 268
3 Jul 2026 LH-Games 2026 200 freestyle 2:32.89 296
3 Jul 2026 LH-Games 2026 50 freestyle 31.60 289
3 Jul 2026 LH-Games 2026 100 butterfly 1:20.89 228
3 Jul 2026 LH-Games 2026 100 backstroke 1:26.75 210
3 Jul 2026 LH-Games 2026 50 backstroke 39.72 208
22 May 2026 Citadellsim 2026 200 butterfly 3:09.93 196
22 May 2026 Citadellsim 2026 50 freestyle 31.47 293
22 May 2026 Citadellsim 2026 200 freestyle 2:37.14 273
11 Apr 2026 Sydsim Swim Meet 100 butterfly 1:26.59 186
11 Apr 2026 Sydsim Swim Meet 200 freestyle 2:37.37 272
11 Apr 2026 Sydsim Swim Meet 200 medley 3:04.15 237
11 Apr 2026 Sydsim Swim Meet 50 freestyle 31.87 282
11 Apr 2026 Sydsim Swim Meet 100 breaststroke 1:37.71 197
11 Apr 2026 Sydsim Swim Meet 50 butterfly 35.79 240
20 Mar 2026 Öresund Meeting 2026 100 freestyle 1:08.07 285
20 Mar 2026 Öresund Meeting 2026 50 breaststroke 42.59 201
20 Mar 2026 Öresund Meeting 2026 50 butterfly 35.74 225
20 Mar 2026 Öresund Meeting 2026 100 butterfly 1:23.59 186
20 Mar 2026 Öresund Meeting 2026 50 freestyle 31.29 267
Swimmer comparison Compare → clear