William Kasimatis-Prøsch

Men / born 2014

starts

243

top FINA

personal best events

PP Over The Years

2025: 7.7 / 2026: 7.2

50m Butterfly Progress

5 swims recordedAll disciplines

Date	Meet	Start	Result	FINA	PP	PB +/-
14 Mar 2025	Zeekit LÅMØ Øst	52,81	51,30	71	1.24	-2.9 Rankings
13 Jun 2025	Mjøssvøm	50,79	DISK	0	0	n/a Rankings
05 Dec 2025	Bærum Open	44,53	38,74	166	13.3	-13 Rankings
23 Jan 2026	Skagerrak Swim	38,74	38,92	164	1.99	0.5 Rankings
01 May 2026	Marienlyst Open	36,74	36,74	195	5.11	0 Rankings

Best Improvements

50m Butterfly: -13% at Bærum Open

100m Medley: -11.7% at Odal Sparebank Open Høst

100m Butterfly: -11.4% at Zeekit LÅMØ Øst 1 - Oslo/Asker/Bærum - 2026

100m Butterfly: -11.2% at Odal Sparebank Open Høst

200m Backstroke: -10.4% at Odal Sparebank Open Høst

PBs

100m Backstroke: 1.32,61

100m Breaststroke: 1.42,19

100m Butterfly: 1.23,18

100m Freestyle: 1.15,41

100m Medley: 1.27,96

200m Backstroke: 3.05,07

200m Breaststroke: 3.17,68

200m Freestyle: 3.23,12

200m Medley: 2.54,37

400m Freestyle: 5.45,58

50m Backstroke: 44,18

50m Breaststroke: 46,83

50m Butterfly: 36,74

50m Freestyle: 32,99

Top 3 FINA

243 / 200m Medley / 2.54,37

231 / 400m Freestyle / 5.45,58

224 / 200m Breaststroke / 3.17,68

Races By Meet

Start time, result time, FINA and PP for every swim.Newest Oldest

Marienlyst Open01 May 2026 / Drammen

Discipline	Start	Result	FINA	PP
100m Backstroke National rankings	1.36,93	1.36,93	123	2.03
100m Breaststroke National rankings	1.44,49	1.44,49	148	2.95
100m Butterfly National rankings	1.38,17	1.38,17	114	1.75
100m Freestyle National rankings	1.15,41	1.15,41	210	5.93
50m Backstroke National rankings	44,18	44,18	125	2.1
50m Breaststroke National rankings	46,83	46,83	151	3.07
50m Butterfly National rankings	36,74	36,74	195	5.11
50m Freestyle National rankings	33,90	33,90	202	5.49

Zeekit LÅMØ Øst 1 - Oslo/Asker/Bærum - 202610 Apr 2026 / Lambertseter

Discipline	Start	Result	FINA	PP	PB +/-
100m Butterfly National rankings	1.33,90	1.23,18	188	16.66	-11.4
200m Backstroke National rankings	3.11,49	3.05,07	185	9.13	-3.4
200m Breaststroke National rankings	3.28,89	3.17,68	224	17.31	-5.4
200m Medley National rankings	3.03,47	2.54,37	243	19.51	-5
400m Freestyle National rankings	5.51,00	5.45,58	231	10.07	-1.5

LÅMØ Kvaliken07 Mar 2026 / Lørenskog

Discipline	Start	Result	FINA	PP	PB +/-
100m Butterfly National rankings	1.42,36	1.33,90	131	7.33	-8.3
200m Backstroke National rankings	3.13,26	3.11,49	167	4.63	-0.9
200m Breaststroke National rankings	3.49,39	3.28,89	190	15.83	-8.9
200m Medley National rankings	3.09,03	3.03,47	209	10.74	-2.9
400m Freestyle National rankings	6.10,13	5.51,00	221	16.5	-5.2

Skagerrak Swim23 Jan 2026 / Kristiansand

Discipline	Start	Result	FINA	PP	PB +/-
100m Backstroke National rankings	1.32,61	1.36,93	123	0.16	4.7
100m Breaststroke National rankings	1.42,19	1.44,49	148	0.72	2.3
100m Butterfly National rankings	1.42,36	1.38,17	114	3.84	-4.1
100m Freestyle National rankings	1.27,53	1.20,28	174	12.93	-8.3
50m Backstroke National rankings	45,15	44,18	125	3.32	-2.1
50m Butterfly National rankings	38,74	38,92	164	1.99	0.5
50m Freestyle National rankings	32,99	33,90	202	1.06	2.8

Bærum Open05 Dec 2025 / Nadderud

Discipline	Start	Result	FINA	PP	PB +/-
100m Backstroke National rankings	1.40,67	1.32,61	142	8.48	-8
100m Breaststroke National rankings	1.48,97	1.42,19	158	9.29	-6.2
200m Medley National rankings	3.22,17	3.09,03	191	13.91	-6.5
50m Butterfly National rankings	44,53	38,74	166	13.3	-13
50m Freestyle National rankings	32,99	33,32	213	2.7	1

Odal Sparebank Open Høst08 Nov 2025 / Jessheim

Discipline	Start	Result	FINA	PP	PB +/-
100m Backstroke National rankings	1.40,67	DNS	0	0	n/a
100m Butterfly National rankings	1.55,23	1.42,36	101	4.79	-11.2
100m Medley National rankings	1.39,64	1.27,96	175	14.51	-11.7
200m Backstroke National rankings	3.35,64	3.13,26	163	12.25	-10.4
50m Freestyle National rankings	34,92	32,99	219	16.72	-5.5

Speed Open25 Oct 2025 / Manglerud

Discipline	Start	Result	FINA	PP	PB +/-
200m Backstroke National rankings	3.35,64	DISK	0	0	n/a
200m Breaststroke National rankings		3.49,39	143	25	n/a
200m Medley National rankings	3.38,36	3.22,17	156	9.89	-7.4
400m Freestyle National rankings	6.39,87	6.10,13	188	14.36	-7.4
50m Freestyle National rankings	35,30	34,92	185	5.93	-1.1

Mjøssvøm13 Jun 2025 / Hamar

Discipline	Start	Result	FINA	PP	PB +/-
100m Freestyle National rankings	1.28,71	1.27,53	134	3.25	-1.3
200m Backstroke National rankings		3.35,64	117	25	n/a
200m Medley National rankings	3.38,36	3.42,15	117	0.6	1.7
400m Freestyle National rankings		6.39,87	149	25	n/a
50m Breaststroke National rankings	49,35	49,37	129	2.24	0
50m Butterfly National rankings	50,79	DISK	0	0	n/a
50m Freestyle National rankings	35,30	35,99	169	1.08	2

Triton Open våren 202526 Apr 2025 / Skjetten

Discipline	Start	Result	FINA	PP	PB +/-
100m Butterfly National rankings		DISK	0	0	n/a
100m Freestyle National rankings	1.38,03	1.28,78	128	7.32	-9.4
100m Medley National rankings	1.41,67	1.39,64	120	3.01	-2
200m Medley National rankings		DISK	0	0	n/a
50m Breaststroke National rankings	52,91	49,35	129	6.44	-6.7
50m Freestyle National rankings	37,51	35,30	179	11.61	-5.9

Zeekit LÅMØ Øst14 Mar 2025 / Lørenskog

Discipline	Start	Result	FINA	PP	PB +/-
100m Backstroke National rankings	1.57,00	1.46,15	94	3.94	-9.3
100m Breaststroke National rankings	2.01,02	1.49,27	129	7.52	-9.7
100m Medley National rankings	1.45,26	1.41,67	113	3.4	-3.4
200m Freestyle National rankings	3.24,58	3.23,12	114	2.06	-0.7
50m Butterfly National rankings	52,81	51,30	71	1.24	-2.9