Jack O'Brien

Mage 14CAMTSINCA

218 plausible swims · 38 meets · 2024-01-20 → 2026-06-21

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	25.18	A+0.59s to AA·+1.99s to Sectionals	2026-03-29	2026 Southwest Age Group Regional fast pool
100 Freestyle	SCY	55.24	A+1.75s to AA·+4.25s to Sectionals	2024-01-20	2024 SI JBST All Ages NTS
200 Freestyle	SCY	2:03.18	BB+0.99s to A·+11.39s to Sectionals	2025-09-21	2025 SI PS Freestyle Festival Sun venue
500 Freestyle	SCY	5:31.11	BB+0.32s to A·+28.42s to Sectionals	2025-11-21	2025 CA MVN Turkey Classic venue
50 Backstroke	SCY	38.64	+4.95s to B·+14.95s to Futures	2024-01-20	2024 SI JBST All Ages NTS venue
100 Backstroke	SCY	1:06.36	B+0.07s to BB·+10.87s to Sectionals	2025-11-09	HSA All Ages NTS venue
200 Backstroke	SCY	2:23.39	BB+10.40s to A·+22.10s to Sectionals	2025-03-09	2025 SI 14U AGE GRP CHAMPIONSHIPS venue
50 Breaststroke	SCY	32.64	A+0.95s to AA·+6.35s to Futures	2026-03-28	2026 Southwest Age Group Regional fast pool
100 Breaststroke	SCY	1:08.65	A+2.46s to AA·+5.46s to Sectionals	2026-03-06	2026 SI 14U AGE GRP CHAMPIONSHIPS
200 Breaststroke	SCY	2:25.29	A+1.30s to AA·+8.00s to Sectionals	2026-03-30	2026 Southwest Age Group Regional fast pool
50 Butterfly	SCY	26.94	AA+0.85s to AAA·+4.05s to Futures	2026-03-28	2026 Southwest Age Group Regional fast pool
100 Butterfly	SCY	1:02.43	BB+2.04s to A·+7.24s to Sectionals	2025-10-04	2025 SI CAST Pentathlon 14&U - copied venue
200 Butterfly	SCY	2:21.85	BB+7.36s to A·+18.46s to Sectionals	2025-01-01	FAST - CA
100 Individual Medley	SCY	1:18.17		2024-02-10	2024 SI SBA All Ages NTS Meet Final venue
200 Individual Medley	SCY	2:20.13	BB+4.74s to A·+16.14s to Sectionals	2025-10-04	2025 SI CAST Pentathlon 14&U - copied venue
400 Individual Medley	SCY	4:55.50	BB+6.01s to A·+30.81s to Sectionals	2025-12-06	SI 2025 RSD All Ages WAG Max venue
50 Freestyle	LCM	29.26	A+1.07s to AA·+2.27s to Sectionals	2026-05-23	SI 2026 TAC CSTE All Ages NTS Meet fast pool
100 Freestyle	LCM	1:04.44	BB+0.05s to A·+5.45s to Sectionals	2026-04-26	2026 SI PS ABB Meet - B Group venue
200 Freestyle	LCM	2:18.11	A+3.42s to AA·+9.42s to Sectionals	2026-06-21	2026 SI Splash and Dash fast pool
400 Freestyle	LCM	5:03.12	BB+3.23s to A·+28.73s to Sectionals	2025-07-25	2025 SI LC AG CHAMPS venue
100 Backstroke	LCM	1:14.18	BB+2.49s to A·+8.99s to Sectionals	2026-06-21	2026 SI Splash and Dash fast pool
200 Backstroke	LCM	2:42.19	BB+6.20s to A·+20.70s to Sectionals	2025-07-24	2025 SI LC AG CHAMPS venue
50 Breaststroke	LCM	39.51	BB+1.72s to A·+8.62s to Futures	2024-06-21	2024 SI SPLASH AND DASH venue
100 Breaststroke	LCM	1:21.30	BB+0.71s to A·+7.60s to Sectionals	2026-04-25	2026 SI PS ABB Meet - B Group venue
200 Breaststroke	LCM	2:54.65	A+7.16s to AA·+13.77s to Sectionals	2026-04-26	2026 SI PS ABB Meet - B Group venue
50 Butterfly	LCM	30.59	AA+1.30s to AAA·+4.30s to Futures	2026-06-21	2026 SI Splash and Dash fast pool
100 Butterfly	LCM	1:11.86	BB+2.97s to A·+8.77s to Sectionals	2025-07-24	2025 SI LC AG CHAMPS venue
200 Butterfly	LCM	2:50.77	B+3.58s to BB·+29.68s to Sectionals	2025-01-01	FAST - CA
200 Individual Medley	LCM	2:35.31	A+5.02s to AA·+10.62s to Sectionals	2026-04-26	2026 SI PS ABB Meet - B Group venue
400 Individual Medley	LCM	5:21.80	A+0.31s to AA·+14.01s to Sectionals	2026-05-23	SI 2026 TAC CSTE All Ages NTS Meet fast pool

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 14.

National cuts (Sectionals → Nationals) are the current-season meet qualifying times for the swimmer's zone and age group; ✓ marks the hardest cut already achieved.

Pool tags are a venue speed heuristic (median deviation of all swims there vs each swimmer's typical time) — see the venue page for the method.

Fastest relay legs

Leg	Course	Time	Start	Relay	Date	Meet
50 Freestyle	SCY	24.23	flying	200 Free Relay (leg 2)	2026-03-29	2026 Southwest Age Group Regional
100 Freestyle	SCY	55.09	flying	400 Free Relay (leg 2)	2026-03-30	2026 Southwest Age Group Regional
100 Breaststroke	SCY	1:08.04	flying	400 Medley Relay (leg 2)	2026-03-08	2026 SI 14U AGE GRP CHAMPIONSHIPS
50 Butterfly	SCY	27.26	flying	200 Medley Relay (leg 3)	2026-03-29	2026 Southwest Age Group Regional
100 Butterfly	SCY	58.63	flying	400 Medley Relay (leg 3)	2026-03-28	2026 Southwest Age Group Regional

Reconstructed from relay split marks. Flat = lead-off (comparable to individual times); flying starts run ~0.5–0.7s fast and are not PRs.

IMX / IMR

IMX 13-14 · LCM

3827 points (6/6 events)

Event	Time	Points
400 FR LCM	5:03.12	640
200 BK LCM	2:42.19	593
200 BR LCM	2:54.65	660
200 FL LCM	2:50.77	491
200 IM LCM	2:35.31	689
400 IM LCM	5:21.80	754

IMR 13-14 · LCM

3237 points (5/5 events)

Event	Time	Points
200 FR LCM	2:18.11	706
100 BK LCM	1:14.18	606
100 BR LCM	1:21.30	646
100 FL LCM	1:11.86	590
200 IM LCM	2:35.31	689

Scored against AAAA motivational base times: ordering is exact, absolute points run ~25% above the official USA Swimming scale.

PR splits

200 Freestyle SCY 2:03.18

28.39

31.77

32.07

30.95

Front half 60.16s · back half 63.02s

500 Freestyle SCY 5:31.11

28.14

31.57

32.79

33.10

34.12

34.34

34.68

34.39

34.46

33.52

Front half 159.72s · back half 171.39s

200 Backstroke SCY 2:23.39

33.82

36.09

37.58

35.90

Front half 69.91s · back half 73.48s

200 Breaststroke SCY 2:25.29

33.56

38.00

37.56

36.17

Front half 71.56s · back half 73.73s

100 Individual Medley SCY 1:18.17

36.54

41.63

Front half 36.54s · back half 41.63s

400 Individual Medley SCY 4:55.50

30.33

36.66

39.35

38.34

42.21

41.26

34.88

32.47

Front half 144.68s · back half 150.82s

100 Freestyle LCM 1:04.44

30.62

33.82

Front half 30.62s · back half 33.82s

200 Freestyle LCM 2:18.11

32.33

35.59

36.04

34.15

Front half 67.92s · back half 70.19s

400 Freestyle LCM 5:03.12

33.02

36.88

38.08

39.51

38.81

39.93

39.31

37.58

Front half 147.49s · back half 155.63s

100 Backstroke LCM 1:14.18

35.93

38.25

Front half 35.93s · back half 38.25s

200 Backstroke LCM 2:42.19

38.13

40.86

41.79

41.41

Front half 78.99s · back half 83.20s

100 Breaststroke LCM 1:21.30

38.95

42.35

Front half 38.95s · back half 42.35s

200 Breaststroke LCM 2:54.65

40.02

44.17

45.05

45.41

Front half 84.19s · back half 90.46s

100 Butterfly LCM 1:11.86

33.26

38.60

Front half 33.26s · back half 38.60s

200 Individual Medley LCM 2:35.31

33.81

42.46

44.66

34.38

Front half 76.27s · back half 79.04s

400 Individual Medley LCM 5:21.80

32.87

38.51

43.71

41.98

44.29

46.09

37.79

36.56

Front half 157.07s · back half 164.73s

Progression

Faster times are higher. One card per event, all courses & history.

50 Freestyle SCY 25.18 14 swims

100 Freestyle SCY 55.24 17 swims

200 Freestyle SCY 2:03.18 7 swims

500 Freestyle SCY 5:31.11 6 swims

50 Backstroke SCY 38.64 2 swims

100 Backstroke SCY 1:06.36 11 swims

200 Backstroke SCY 2:23.39 5 swims

50 Breaststroke SCY 32.64 13 swims

100 Breaststroke SCY 1:08.65 17 swims

200 Breaststroke SCY 2:25.29 16 swims

50 Butterfly SCY 26.94 9 swims

100 Butterfly SCY 1:02.43 17 swims

200 Butterfly SCY 2:21.85 3 swims

100 Individual Medley SCY 1:18.17 2 swims

200 Individual Medley SCY 2:20.13 10 swims

400 Individual Medley SCY 4:55.50 1 swim

50 Freestyle LCM 29.26 4 swims

100 Freestyle LCM 1:04.44 6 swims

200 Freestyle LCM 2:18.11 4 swims

400 Freestyle LCM 5:03.12 2 swims

100 Backstroke LCM 1:14.18 3 swims

200 Backstroke LCM 2:42.19 7 swims

50 Breaststroke LCM 39.51 3 swims

100 Breaststroke LCM 1:21.30 8 swims

200 Breaststroke LCM 2:54.65 7 swims

50 Butterfly LCM 30.59 5 swims

100 Butterfly LCM 1:11.86 9 swims

200 Butterfly LCM 2:50.77 2 swims

200 Individual Medley LCM 2:35.31 7 swims

400 Individual Medley LCM 5:21.80 1 swim