Jack Brennan

Mage 15ILRISE

30 plausible swims · 5 meets · 2024-07-13 → 2026-03-01

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	23.21	AA+0.52s to AAA	2025-03-15	2025 ISI Winter 11-14 Age Group Championships venue
100 Freestyle	SCY	49.95	AA+0.16s to AAA	2025-03-16	2025 ISI Winter 11-14 Age Group Championships venue
200 Freestyle	SCY	1:51.39	AA+2.70s to AAA	2026-03-01	2026 Winter ISI Regionals- TIDE - copied fast pool
500 Freestyle	SCY	5:03.71	AA+8.02s to AAA	2026-02-28	2026 Winter ISI Regionals- TIDE - copied fast pool
50 Backstroke	SCY	27.54	A+0.65s to AA	2025-03-14	2025 ISI Winter 11-14 Age Group Championships venue
100 Backstroke	SCY	58.90	A+1.81s to AA	2026-03-01	2026 Winter ISI Regionals- TIDE - copied fast pool
200 Backstroke	SCY	2:06.59	A+1.90s to AA	2026-02-28	2026 Winter ISI Regionals- TIDE - copied fast pool
100 Butterfly	SCY	59.25	BB+0.36s to A	2025-03-14	2025 ISI Winter 11-14 Age Group Championships venue
200 Individual Medley	SCY	2:17.96	BB+5.77s to A	2024-07-14	2024 IL BSC Summer Regional Championships slow pool
400 Individual Medley	SCY	4:37.93	A+5.54s to AA	2025-07-18	2025 ISI Summer ACAD Regional venue
100 Freestyle	LCM	1:00.88	A+1.19s to AA	2024-07-18	2024 IL Swimming LC Age Group Championships venue
100 Backstroke	LCM	1:10.42	BB+0.83s to A	2024-07-18	2024 IL Swimming LC Age Group Championships venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.

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	22.51	flying	200 Free Relay (leg 2)	2025-03-13	2025 ISI Winter 11-14 Age Group Championships
100 Freestyle	SCY	50.96	flat	400 Free Relay	2025-03-16	2025 ISI Winter 11-14 Age Group Championships
100 Freestyle	SCY	52.13	flying	400 Medley Relay (leg 4)	2024-03-09	2024 IL Swimming SC Age Group Championships
100 Freestyle	SCY	52.46	flying	400 Free Relay (leg 2)	2024-03-10	2024 IL Swimming SC Age Group Championships
200 Freestyle	SCY	1:54.86	flying	800 Free Relay (leg 2)	2024-03-08	2024 IL Swimming SC Age Group Championships
50 Backstroke	SCY	27.65	flat	200 Medley Relay	2026-02-28	2026 Winter ISI Regionals- TIDE - copied
100 Freestyle	LCM	59.28	flying	400 Free Relay (leg 2)	2024-07-20	2024 IL Swimming LC Age Group Championships
200 Freestyle	LCM	2:12.03	flat	800 Free Relay	2024-07-19	2024 IL Swimming LC Age Group Championships

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 15-16 · SCY

2628 points (4/6 events — incomplete)

Event	Time	Points
500 FR SCY	5:03.71	752
200 BK SCY	2:06.59	668
200 IM SCY	2:17.96	552
400 IM SCY	4:37.93	656
200 BR SCY	—	0
200 FL SCY	—	0

IMR 15-16 · SCY

2571 points (4/5 events — incomplete)

Event	Time	Points
200 FR SCY	1:51.39	767
100 BK SCY	58.90	637
100 FL SCY	59.25	615
200 IM SCY	2:17.96	552
100 BR SCY	—	0

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

PR splits

100 Freestyle SCY 49.95 RT 0.62s

24.22

25.73

Front half 24.22s · back half 25.73s

200 Freestyle SCY 1:51.39

25.94

28.42

28.98

28.05

Front half 54.36s · back half 57.03s

500 Freestyle SCY 5:03.71

27.46

30.25

30.63

30.89

30.77

30.89

30.98

31.12

30.66

30.06

Front half 150.00s · back half 153.71s

100 Backstroke SCY 58.90

28.93

29.97

Front half 28.93s · back half 29.97s

200 Backstroke SCY 2:06.59

30.17

32.34

32.17

31.91

Front half 62.51s · back half 64.08s

100 Butterfly SCY 59.25 RT 0.63s

27.29

31.96

Front half 27.29s · back half 31.96s

200 Individual Medley SCY 2:17.96

29.09

35.27

43.60

30.00

Front half 64.36s · back half 73.60s

400 Individual Medley SCY 4:37.93

28.97

34.54

35.17

34.03

41.54

41.31

31.08

31.29

Front half 132.71s · back half 145.22s

100 Freestyle LCM 1:00.88

29.49

31.39

Front half 29.49s · back half 31.39s

100 Backstroke LCM 1:10.42

34.34

36.08

Front half 34.34s · back half 36.08s

Reaction time

fastest 0.62s average 0.632s slowest 0.65s 6 electronic starts

Start reaction over time faster starts higher

From electronically-timed starts only (~2% of corpus swims carry a reaction time). PRs with a recorded reaction show an RT chip in the splits section above.

Progression

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

50 Freestyle SCY 23.21 5 swims

100 Freestyle SCY 49.95 4 swims

200 Freestyle SCY 1:51.39 5 swims

500 Freestyle SCY 5:03.71 1 swim

50 Backstroke SCY 27.54 2 swims

100 Backstroke SCY 58.90 4 swims

200 Backstroke SCY 2:06.59 3 swims

100 Butterfly SCY 59.25 2 swims

200 Individual Medley SCY 2:17.96 1 swim

400 Individual Medley SCY 4:37.93 1 swim

100 Freestyle LCM 1:00.88 1 swim

100 Backstroke LCM 1:10.42 1 swim