Oliver Brereton

Mage 14GUILINMIMWOKOZSDBSCILPPD

122 plausible swims · 16 meets · 2022-08-04 → 2026-08-06

Personal records

Event	Course	Best	Cut	Date	Meet
200 Freestyle	SCY	1:49.89	AAA+3.00s to AAAA·+4.10s to Sectionals	2026-03-13	2026 ISI Winter 11-14 Age Group Championships venue
500 Freestyle	SCY	4:55.56	AAA+6.07s to AAAA·+9.47s to Sectionals	2026-03-14	2026 ISI Winter 11-14 Age Group Championships venue
1000 Freestyle	SCY	10:14.43	AAA+13.24s to AAAA·+17.24s to Sectionals	2026-03-15	2026 ISI Winter 11-14 Age Group Championships venue
100 Backstroke	SCY	1:00.55	A+1.96s to AA·+5.46s to Sectionals	2025-03-15	2025 ISI Winter 11-14 Age Group Championships venue
200 Backstroke	SCY	2:09.41	A+1.92s to AA·+7.12s to Sectionals	2025-03-14	2025 ISI Winter 11-14 Age Group Championships venue
100 Butterfly	SCY	1:04.88	BB+4.49s to A·+12.19s to Sectionals	2024-03-08	2024 IL Swimming SC Age Group Championships slow pool
200 Butterfly	SCY	2:01.25	AAA+3.56s to AAAA·+2.76s to Sectionals	2026-03-15	2026 ISI Winter 11-14 Age Group Championships venue
100 Individual Medley	SCY	1:00.47		2025-03-14	2025 ISI Winter 11-14 Age Group Championships venue
200 Individual Medley	SCY	2:02.00	AAA+3.51s to AAAA·+2.61s to Sectionals	2026-03-14	2026 ISI Winter 11-14 Age Group Championships venue
400 Individual Medley	SCY	4:20.13	AAA+6.84s to AAAA·+8.14s to Sectionals	2026-03-13	2026 ISI Winter 11-14 Age Group Championships venue
100 Freestyle	LCM	1:02.74	A+1.05s to AA·+7.45s to Sectionals	2025-01-01	2025 Duel in the Pool Invitational venue
200 Freestyle	LCM	2:03.01	AAA+0.02s to AAAA·+2.12s to Sectionals	2026-08-06	2026 MN CZ 14 & U Championship Meet
400 Freestyle	LCM	4:18.46	AAAA·Sectionals ✓+8.47s to Futures	2026-07-31	IL Swimming 11-14 Age Group Champs LC 26 fast pool
800 Freestyle	LCM	8:51.72	AAAA·Sectionals ✓+11.03s to Futures	2026-08-06	2026 MN CZ 14 & U Championship Meet
1500 Freestyle	LCM	17:12.07	AAAA·Sectionals ✓+33.08s to Futures	2026-08-02	IL Swimming 11-14 Age Group Champs LC 26 fast pool
50 Backstroke	LCM	29.58	AAAA·Sectionals ✓+1.69s to Futures	2026-08-06	2026 MN CZ 14 & U Championship Meet
100 Backstroke	LCM	1:08.61	AA+2.82s to AAA·+4.12s to Sectionals	2025-01-01	2025 Duel in the Pool Invitational venue
200 Backstroke	LCM	2:16.38	AAAA·Sectionals ✓+4.49s to Futures	2026-08-06	2026 MN CZ 14 & U Championship Meet
100 Breaststroke	LCM	1:14.62	AA+0.73s to AAA·+2.23s to Sectionals	2026-07-31	IL Swimming 11-14 Age Group Champs LC 26 fast pool
200 Breaststroke	LCM	2:34.97	AAA+1.98s to AAAA·Sectionals ✓+5.88s to Futures	2026-07-30	IL Swimming 11-14 Age Group Champs LC 26 fast pool
100 Butterfly	LCM	1:01.08	AAA+0.79s to AAAA·+0.59s to Sectionals	2026-01-01	DePauw University
200 Butterfly	LCM	2:12.38	AAAA·Sectionals ✓+2.19s to Futures	2026-08-06	2026 MN CZ 14 & U Championship Meet
200 Individual Medley	LCM	2:16.63	AAAA·Sectionals ✓+3.84s to Futures	2026-08-02	IL Swimming 11-14 Age Group Champs LC 26 fast pool
400 Individual Medley	LCM	4:48.15	AAAA·Sectionals ✓+5.76s to Futures	2026-08-01	IL Swimming 11-14 Age Group Champs LC 26 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	25.10	flying	200 Free Relay (leg 4)	2025-03-13	2025 ISI Winter 11-14 Age Group Championships
100 Freestyle	SCY	51.62	flat	400 Free Relay	2026-03-15	2026 ISI Winter 11-14 Age Group Championships
100 Freestyle	SCY	53.56	flying	400 Free Relay (leg 4)	2025-03-16	2025 ISI Winter 11-14 Age Group Championships
200 Freestyle	SCY	1:54.15	flat	800 Free Relay	2026-03-13	2026 ISI Winter 11-14 Age Group Championships
50 Backstroke	SCY	26.23	flat	200 Medley Relay	2026-03-13	2026 ISI Winter 11-14 Age Group Championships
100 Backstroke	SCY	57.17	flat	400 Medley Relay	2026-03-14	2026 ISI Winter 11-14 Age Group Championships
100 Breaststroke	SCY	1:18.59	flying	400 Medley Relay (leg 2)	2024-03-09	2024 IL Swimming SC Age Group Championships
100 Butterfly	SCY	1:00.60	flying	400 Medley Relay (leg 3)	2025-03-15	2025 ISI Winter 11-14 Age Group Championships
50 Freestyle	LCM	29.91	flat	200 Free Relay	2024-06-02	2024 LSC Duel in the Pool
50 Freestyle	LCM	25.96	flying	200 Free Relay (leg 2)	2026-07-30	IL Swimming 11-14 Age Group Champs LC 26
50 Freestyle	LCM	32.77	flying	200 Medley Relay (leg 4)	2022-08-06	2025 Central Zone 14 & Under Championship Mee
100 Freestyle	LCM	57.64	flying	400 Free Relay (leg 4)	2026-08-01	IL Swimming 11-14 Age Group Champs LC 26
200 Freestyle	LCM	2:04.18	flying	800 Free Relay (leg 4)	2026-07-31	IL Swimming 11-14 Age Group Champs LC 26
50 Backstroke	LCM	29.68	flat	200 Medley Relay	2026-08-01	IL Swimming 11-14 Age Group Champs LC 26
100 Backstroke	LCM	1:03.96	flat	400 Medley Relay	2026-08-02	IL Swimming 11-14 Age Group Champs LC 26
50 Butterfly	LCM	32.52	flying	200 Medley Relay (leg 3)	2024-05-31	2024 LSC Duel in the Pool
100 Butterfly	LCM	1:11.26	flying	400 Medley Relay (leg 3)	2024-07-21	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 13-14 · LCM

6094 points (6/6 events)

Event	Time	Points
400 FR LCM	4:18.46	1033
200 BK LCM	2:16.38	998
200 BR LCM	2:34.97	945
200 FL LCM	2:12.38	1055
200 IM LCM	2:16.63	1012
400 IM LCM	4:48.15	1051

IMR 13-14 · LCM

4573 points (5/5 events)

Event	Time	Points
200 FR LCM	2:03.01	999
100 BK LCM	1:08.61	766
100 BR LCM	1:14.62	835
100 FL LCM	1:01.08	961
200 IM LCM	2:16.63	1012

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

PR splits

200 Freestyle SCY 1:49.89

25.32

27.51

28.57

28.49

Front half 52.83s · back half 57.06s

500 Freestyle SCY 4:55.56

26.54

29.15

29.56

29.75

30.13

30.40

30.23

30.41

30.04

29.35

Front half 145.13s · back half 150.43s

1000 Freestyle SCY 10:14.43

27.65

30.56

31.12

31.25

30.87

30.94

31.23

31.28

31.18

31.47

30.76

31.06

30.90

31.16

31.06

31.00

30.59

30.63

30.21

29.51

Front half 307.55s · back half 306.88s

100 Backstroke SCY 1:00.55 RT 0.67s

29.76

30.79

Front half 29.76s · back half 30.79s

200 Backstroke SCY 2:09.41 RT 0.66s

30.63

33.42

33.05

32.31

Front half 64.05s · back half 65.36s

100 Butterfly SCY 1:04.88

30.23

34.65

Front half 30.23s · back half 34.65s

200 Butterfly SCY 2:01.25

27.78

30.47

31.65

31.35

Front half 58.25s · back half 63.00s

100 Individual Medley SCY 1:00.47 RT 0.64s

27.70

32.77

Front half 27.70s · back half 32.77s

200 Individual Medley SCY 2:02.00

27.60

30.78

35.49

28.13

Front half 58.38s · back half 63.62s

400 Individual Medley SCY 4:20.13

27.79

30.94

31.90

33.65

37.39

38.47

30.22

29.77

Front half 124.28s · back half 135.85s

100 Freestyle LCM 1:02.74 RT 0.69s

30.40

32.34

Front half 30.40s · back half 32.34s

400 Freestyle LCM 4:18.46

29.44

32.47

32.60

33.52

32.82

33.09

32.62

31.90

Front half 128.03s · back half 130.43s

1500 Freestyle LCM 17:12.07

66.11

70.66

71.45

70.91

70.08

69.28

68.83

69.19

69.02

69.25

67.24

68.17

67.99

67.83

66.06

100 Breaststroke LCM 1:14.62

35.69

38.93

Front half 35.69s · back half 38.93s

200 Breaststroke LCM 2:34.97

37.49

37.97

40.60

38.91

Front half 75.46s · back half 79.51s

100 Butterfly LCM 1:01.08 split/total mismatch

30.13

33.73

28.55

32.53

200 Individual Medley LCM 2:16.63

65.76

70.87

Front half 65.76s · back half 70.87s

400 Individual Medley LCM 4:48.15

30.75

33.78

36.94

37.41

41.06

42.50

32.51

33.20

Front half 138.88s · back half 149.27s

Reaction time

fastest 0.62s average 0.684s slowest 0.79s 25 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.

Swim history

Every recorded swim, newest first

Date	Event	Course	Time	Age	Round	Meet

Individual swims with a recorded date and time — including disqualifications — plus reconstructed relay legs (marked). Assembled in the browser from this page’s data.

Progression

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

200 Freestyle SCY 1:49.89 4 swims

500 Freestyle SCY 4:55.56 3 swims

1000 Freestyle SCY 10:14.43 3 swims

100 Backstroke SCY 1:00.55 2 swims

200 Backstroke SCY 2:09.41 4 swims

100 Butterfly SCY 1:04.88 2 swims

200 Butterfly SCY 2:01.25 6 swims

100 Individual Medley SCY 1:00.47 2 swims

200 Individual Medley SCY 2:02.00 6 swims

400 Individual Medley SCY 4:20.13 2 swims

100 Freestyle LCM 1:02.74 2 swims

200 Freestyle LCM 2:03.01 14 swims

400 Freestyle LCM 4:18.46 9 swims

800 Freestyle LCM 8:51.72 7 swims

1500 Freestyle LCM 17:12.07 6 swims

50 Backstroke LCM 29.58 2 swims

100 Backstroke LCM 1:08.61 1 swim

200 Backstroke LCM 2:16.38 4 swims

100 Breaststroke LCM 1:14.62 1 swim

200 Breaststroke LCM 2:34.97 2 swims

100 Butterfly LCM 1:01.08 13 swims

200 Butterfly LCM 2:12.38 12 swims

200 Individual Medley LCM 2:16.63 11 swims

400 Individual Medley LCM 4:48.15 4 swims