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Jan-Oskar Rantanen

born 2012 · male · 🇫🇮 Finland · Uimaseura Kaarina

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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
13
Swims
56
Best FINA points
476

Progression — all-time

50 m backstroke 25 m pool
10 swims · best time 31.01 · 9.39 faster than the first swim
National record (Finland) · 23.76 31.01 30.0040.00 12.2308.2403.2511.25
100 m backstroke 50 m pool
10 swims · best time 1:06.07 · 18.77 faster than the first swim
National record (Finland) · 55.48 Olympic bronze · 52.39 OQT · 53.74 1:06.07 1:00.001:20.00 06.2401.2508.2504.26
100 m backstroke 25 m pool
8 swims · best time 1:05.82 · 25.55 faster than the first swim
National record (Finland) · 51.64 1:05.82 1:00.001:20.00 12.2308.2404.2512.25
100 m freestyle 50 m pool
8 swims · best time 59.72 · 28.87 faster than the first swim
National record (Finland) · 49.25 Olympic bronze · 47.49 OQT · 48.34 59.72 1:00.001:20.00 07.2306.2404.2502.26
100 m freestyle 25 m pool
8 swims · best time 1:00.49 · 20.52 faster than the first swim
National record (Finland) · 47.13 1:00.49 1:00.001:20.00 01.2409.2405.2512.25
50 m backstroke 50 m pool
7 swims · best time 30.23 · 13.94 faster than the first swim
National record (Finland) · 25.32 30.23 30.0040.00 06.2305.2404.2502.26
100 m butterfly 25 m pool
6 swims · best time 1:08.49 · 35.70 faster than the first swim
National record (Finland) · 50.88 1:08.49 1:00.001:20.001:40.00 12.2308.2403.2511.25
100 m medley 25 m pool
6 swims · best time 1:11.53 · 15.11 faster than the first swim
National record (Finland) · 52.28 1:11.53 1:00.001:20.00 11.2404.2508.2501.26

Road to the Olympics & national records

Season-best results from 2025/26 against Paris 2024 bronze, the qualifying standard (OQT) and the swimmer's national record.

Record sources: Finland: Suomen Uimaliitto - Suomen ennätykset (updated 28 Jun 2026)

EventPoolTimeTargetWOZMissing
100 backstroke 50 m pool 1:06.07 National record (Finland) 55.48
record: Ajjuub Ezzatt		 84.0% +10.59
50 backstroke 50 m pool 30.23 National record (Finland) 25.32
record: Kalle Mäkinen		 83.8% +4.91
100 freestyle 50 m pool 59.72 National record (Finland) 49.25
record: Tomas Koski		 82.5% +10.47
200 backstroke 50 m pool 2:27.90 National record (Finland) 2:00.70
record: Jani Sievinen		 81.6% +27.20
100 freestyle 50 m pool 59.72 Olympic bronze 47.49
record: David Popovici		 79.5% +12.23
50 butterfly 50 m pool 29.59 National record (Finland) 23.50
record: Jere Hård		 79.4% +6.09
100 backstroke 50 m pool 1:06.07 Olympic bronze 52.39
record: Ryan Murphy		 79.3% +13.68
100 backstroke 25 m pool 1:05.82 National record (Finland) 51.64
record: Ronny Brännkärr		 78.5% +14.18
100 freestyle 25 m pool 1:00.49 National record (Finland) 47.13
record: Tomas Koski		 77.9% +13.36
200 backstroke 50 m pool 2:27.90 Olympic bronze 1:54.85
record: Roman Mityukov		 77.7% +33.05
50 freestyle 50 m pool 27.80 Olympic bronze 21.56
record: Florent Manaudou		 77.6% +6.24
50 freestyle 50 m pool 27.80 National record (Finland) 21.58
record: Ari-Pekka Liukkonen		 77.6% +6.22

Season-best results

EventPoolTimeFINA ptsWhere
50 m backstroke 50 m pool 30.23 472 12 Jun 2026 · Ikäkausimestaruusuinnit 2026
50 m backstroke 25 m pool 31.01 362 24 Jan 2026 · Ulpukka -uinnit 2026
100 m backstroke 50 m pool 1:06.07 476 12 Jun 2026 · Ikäkausimestaruusuinnit 2026
100 m backstroke 25 m pool 1:05.82 395 21 Mar 2026 · Altaalle.com-uinnit 2026
200 m backstroke 50 m pool 2:27.90 433 12 Jun 2026 · Ikäkausimestaruusuinnit 2026
200 m backstroke 25 m pool 2:28.42 360 14 Nov 2025 · IKM 2025 Varsinais-Suomi
50 m breaststroke 25 m pool 40.39 235 23 May 2026 · RaisU-uinnit 2026
100 m breaststroke 50 m pool 1:35.83 209 25 Apr 2026 · XXIII GANT Turku Junior Games
100 m breaststroke 25 m pool 1:36.30 189 4 Oct 2025 · Syysuinnit
200 m breaststroke 25 m pool 3:15.95 230 23 May 2026 · RaisU-uinnit 2026
50 m butterfly 50 m pool 29.59 426 12 Jun 2026 · Ikäkausimestaruusuinnit 2026
50 m butterfly 25 m pool 30.60 359 14 Nov 2025 · IKM 2025 Varsinais-Suomi
100 m butterfly 25 m pool 1:08.49 339 24 Jan 2026 · Ulpukka -uinnit 2026
200 m butterfly 50 m pool 2:51.43 266 7 Mar 2026 · XXXVIII Turku Super Games
50 m freestyle 50 m pool 27.80 425 12 Jun 2026 · Ikäkausimestaruusuinnit 2026
50 m freestyle 25 m pool 27.63 388 4 Oct 2025 · Syysuinnit
100 m freestyle 50 m pool 59.72 469 12 Jun 2026 · Ikäkausimestaruusuinnit 2026
100 m freestyle 25 m pool 1:00.49 407 14 Nov 2025 · IKM 2025 Varsinais-Suomi
200 m freestyle 25 m pool 2:12.38 422 14 Nov 2025 · IKM 2025 Varsinais-Suomi
400 m freestyle 25 m pool 4:46.13 408 11 Oct 2025 · GANT ÅTUS Games 2025
800 m freestyle 25 m pool 10:06.20 383 24 Jan 2026 · Ulpukka -uinnit 2026
100 m medley 25 m pool 1:11.53 326 21 Mar 2026 · Altaalle.com-uinnit 2026
200 m medley 50 m pool 2:37.07 382 12 Jun 2026 · Ikäkausimestaruusuinnit 2026
200 m medley 25 m pool 2:33.75 362 21 Mar 2026 · Altaalle.com-uinnit 2026
400 m medley 25 m pool 5:28.08 366 23 May 2026 · RaisU-uinnit 2026

Recent swims

DateMeetEventTimePts
25 Jun 2026 SM-uinnit 2026 200 backstroke 2:28.38 429
25 Jun 2026 SM-uinnit 2026 100 backstroke 1:06.43 468
25 Jun 2026 SM-uinnit 2026 50 backstroke 30.76 448
12 Jun 2026 Ikäkausimestaruusuinnit 2026 200 medley 2:37.07 382
12 Jun 2026 Ikäkausimestaruusuinnit 2026 50 freestyle 27.80 425
12 Jun 2026 Ikäkausimestaruusuinnit 2026 50 butterfly 29.59 426
12 Jun 2026 Ikäkausimestaruusuinnit 2026 200 backstroke 2:27.90 433
12 Jun 2026 Ikäkausimestaruusuinnit 2026 100 freestyle 59.72 469
12 Jun 2026 Ikäkausimestaruusuinnit 2026 50 backstroke 30.23 472
12 Jun 2026 Ikäkausimestaruusuinnit 2026 100 backstroke 1:06.07 476
23 May 2026 RaisU-uinnit 2026 50 breaststroke 40.39 235
23 May 2026 RaisU-uinnit 2026 400 medley 5:28.08 366
23 May 2026 RaisU-uinnit 2026 200 breaststroke 3:15.95 230
25 Apr 2026 XXIII GANT Turku Junior Games 200 medley 2:38.14 374
25 Apr 2026 XXIII GANT Turku Junior Games 50 backstroke 30.99 438
25 Apr 2026 XXIII GANT Turku Junior Games 200 backstroke 2:29.09 423
25 Apr 2026 XXIII GANT Turku Junior Games 100 breaststroke 1:35.83 209
21 Mar 2026 Altaalle.com-uinnit 2026 100 medley 1:11.53 326
21 Mar 2026 Altaalle.com-uinnit 2026 100 backstroke 1:05.82 395
21 Mar 2026 Altaalle.com-uinnit 2026 200 medley 2:33.75 362
Swimmer comparison Compare → clear