swimstats

Brennen Oneil

Mage 19COCZIAMNMTNMORPNSEUTFAST

439 plausible swims · 71 meets · 2020-12-10 → 2026-07-19

Personal records

EventCourseBest CutDateMeet
25 Freestyle SCY 10.18 2023-09-30 2023 CO FAST Intra-Squadvenue
50 Freestyle SCY 21.76 Sectionals ✓+1.37s to Futures 2026-01-24 2026 CO FAST Winter Openvenue
100 Freestyle SCY 46.32 Sectionals ✓+1.93s to Futures 2024-04-05 2024 Western Zone SCY Senior Zonesfast pool
200 Freestyle SCY 1:40.70 Sectionals ✓+3.11s to Futures 2025-02-22 2025 CO Colorado Senior Meetvenue
500 Freestyle SCY 4:36.24 Sectionals ✓+10.65s to Futures 2024-04-03 2024 Western Zone SCY Senior Zonesfast pool
1000 Freestyle SCY 9:18.81 Sectionals ✓+5.62s to Futures 2026-03-26 2026 Four Corner Speedo Sectionals - Carmel -fast pool
1650 Freestyle SCY 15:50.42 Sectionals ✓+19.03s to Futures 2023-03-12 2023 Northwest Spring Speedo Sectionalsvenue
25 Backstroke SCY 11.80 2023-09-30 2023 CO FAST Intra-Squadvenue
50 Backstroke SCY 24.12 +1.63s to Futures 2024-10-18 2024 CO Scary FAST Invitevenue
100 Backstroke SCY 49.37 Sectionals ✓+0.78s to Futures 2026-03-26 2026 Four Corner Speedo Sectionals - Carmel
200 Backstroke SCY 1:46.07 Futures ✓+2.78s to US Open 2025-01-01 2025 USA Swimming Speedo Championship Series
25 Breaststroke SCY 12.32 2023-09-30 2023 CO FAST Intra-Squadvenue
50 Breaststroke SCY 27.38 +2.09s to Futures 2024-10-18 2024 CO Scary FAST Invitevenue
100 Breaststroke SCY 57.47 Sectionals ✓+2.48s to Futures 2025-01-01 2025 CO Pikes Peak Finals
200 Breaststroke SCY 2:02.54 Sectionals ✓+2.15s to Futures 2025-02-23 2025 CO Colorado Senior Meetvenue
25 Butterfly SCY 10.24 2023-09-30 2023 CO FAST Intra-Squadvenue
50 Butterfly SCY 23.04 +1.05s to Futures 2024-10-18 2024 CO Scary FAST Invitevenue
100 Butterfly SCY 49.89 Sectionals ✓+1.70s to Futures 2025-01-01 2025 CO Pikes Peak Finals
200 Butterfly SCY 1:54.34 Sectionals ✓+6.45s to Futures 2025-01-01 Colorado Swimming Championship Meet
100 Individual Medley SCY 53.00 2025-01-01 Colorado Swimming Championship Meet
200 Individual Medley SCY 1:49.13 Sectionals ✓+0.64s to Futures 2024-05-10 2024 CO OB CHSAA 5A Championshipsvenue
400 Individual Medley SCY 3:51.67 Futures ✓+3.98s to US Open 2025-12-12 2025 West Speedo Winter Juniorsvenue
800 Individual Medley SCY 8:29.31 2025-01-24 2025 CO FAST Winter Openvenue
50 Freestyle LCM 24.84 Sectionals ✓+1.05s to Futures 2026-01-01 1723269
100 Freestyle LCM 54.33 Sectionals ✓+2.34s to Futures 2026-04-25 2026 CO FAST Spring Splashvenue
200 Freestyle LCM 1:57.66 Sectionals ✓+3.57s to Futures 2026-06-06 2026 CO FAST June Bonanza Openvenue
400 Freestyle LCM 4:09.58 Sectionals ✓+7.39s to Futures 2024-03-16 2024 Northwest Spring Speedo Sectionalsvenue
800 Freestyle LCM 8:40.50 Sectionals ✓+17.41s to Futures 2026-07-10 2026 CO NCS Gold District Championshipsvenue
1500 Freestyle LCM 16:20.57 Sectionals ✓+15.48s to Futures 2024-07-30 WZ LCM Senior Champs 2024fast pool
50 Backstroke LCM 26.85 +0.16s to Futures 2025-07-30 2025 Speedo Junior National Championshipsvenue
100 Backstroke LCM 56.88 US Open ✓+1.19s to Nationals 2025-08-02 2025 Speedo Junior National Championshipsvenue
200 Backstroke LCM 2:05.48 Futures ✓+0.89s to US Open 2024-08-01 WZ LCM Senior Champs 2024fast pool
50 Breaststroke LCM 31.96 +2.37s to Futures 2025-04-25 2025 CO FAST Spring Splash LC Openvenue
100 Breaststroke LCM 1:09.64 Sectionals ✓+4.55s to Futures 2024-11-24 2024 CO Junior National LC Campvenue
200 Breaststroke LCM 2:24.22 Sectionals ✓+1.83s to Futures 2025-06-13 2025 CO CSI Long Course Openvenue
50 Butterfly LCM 26.70 +1.31s to Futures 2025-01-01 1608906
100 Butterfly LCM 57.66 Sectionals ✓+1.77s to Futures 2024-06-14 2024 CO CSI Long Course Openvenue
200 Butterfly LCM 2:22.16 +1.07s to Sectionals 2023-06-18 2023 CO CSI Long Course Openvenue
200 Individual Medley LCM 2:05.35 US Open ✓+2.46s to Nationals 2024-08-03 WZ LCM Senior Champs 2024fast pool
400 Individual Medley LCM 4:30.25 Futures ✓+1.36s to US Open 2025-07-31 2025 Speedo Junior National Championshipsvenue

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

LegCourseTime StartRelayDateMeet
50 Freestyle SCY 22.46 flat 200 Free Relay 2026-01-24 2026 CO FAST Winter Open
50 Freestyle SCY 20.94 flying 200 Free Relay (leg 4) 2025-01-25 2025 CO FAST Winter Open
100 Freestyle SCY 46.54 flat 400 Free Relay 2025-03-14 2025 MN RSC CZ North Section Spring Champions
100 Freestyle SCY 46.41 flying 400 Free Relay (leg 4) 2026-03-27 2026 Four Corner Speedo Sectionals - Carmel -
200 Freestyle SCY 1:46.40 flat 800 Free Relay 2023-03-11 2023 Northwest Spring Speedo Sectionals
200 Freestyle SCY 1:40.91 flying 800 Free Relay (leg 2) 2025-03-13 2025 MN RSC CZ North Section Spring Champions
50 Backstroke SCY 23.47 flat 200 Medley Relay 2026-03-26 2026 Four Corner Speedo Sectionals - Carmel -
100 Backstroke SCY 51.54 flat 400 Medley Relay 2025-03-15 2025 MN RSC CZ North Section Spring Champions
50 Breaststroke SCY 26.38 flying 200 Medley Relay (leg 2) 2024-04-05 2024 Western Zone SCY Senior Zones
50 Butterfly SCY 22.88 flying 200 Medley Relay (leg 3) 2026-01-25 2026 CO FAST Winter Open
50 Freestyle LCM 25.11 flat 200 Free Relay 2024-01-06 2024 CO TOPS Long Course Invite
50 Freestyle LCM 23.87 flying 200 Free Relay (leg 4) 2026-07-16 2026 Central Zone East Summer Speedo Sectiona
100 Freestyle LCM 53.18 flying 400 Free Relay (leg 3) 2025-07-17 2025 CO CSI Senior LC State Championships
200 Freestyle LCM 1:58.42 flat 800 Free Relay 2024-03-16 2024 Northwest Spring Speedo Sectionals
200 Freestyle LCM 2:00.76 flying 800 Free Relay (leg 3) 2026-07-18 2026 Central Zone East Summer Speedo Sectiona
50 Backstroke LCM 27.40 flat 200 Medley Relay 2026-07-17 2026 Central Zone East Summer Speedo Sectiona
100 Backstroke LCM 58.52 flat 400 Medley Relay 2025-07-17 2025 CO CSI Senior LC State 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.

PR splits

100 Freestyle SCY 46.32

22.28
24.04

Front half 22.28s · back half 24.04s

200 Freestyle SCY 1:40.70

23.28
25.69
26.21
25.52

Front half 48.97s · back half 51.73s

500 Freestyle SCY 4:36.24

24.66
26.98
27.74
28.11
28.26
28.57
28.53
28.76
28.33
26.30

Front half 135.75s · back half 140.49s

1000 Freestyle SCY 9:18.81

24.61
26.98
27.78
27.98
27.66
27.93
28.08
28.24
28.88
28.43
28.31
28.45
28.61
28.52
28.54
28.19
28.65
28.47
28.39
26.11

Front half 276.57s · back half 282.24s

1650 Freestyle SCY 15:50.42 RT 0.64s

25.00
27.70
28.30
28.76
28.99
28.77
28.88
29.09
29.01
29.09
28.78
29.18
29.18
29.47
29.12
29.14
28.92
29.05
29.36
29.10
29.54
28.94
29.07
28.97
29.02
28.88
28.84
29.10
29.26
29.01
29.06
28.64
27.20

100 Backstroke SCY 49.37 split/total mismatch

23.82
1.73

Front half 23.82s · back half 25.55s

200 Backstroke SCY 1:46.07 split/total mismatch

24.93
26.36
27.44
27.34

200 Breaststroke SCY 2:02.54

28.34
31.46
31.14
31.60

Front half 59.80s · back half 62.74s

200 Individual Medley SCY 1:49.13

23.65
26.74
32.35
26.39

Front half 50.39s · back half 58.74s

400 Individual Medley SCY 3:51.67

24.51
28.43
29.69
29.37
33.01
32.50
27.76
26.40

Front half 112.00s · back half 119.67s

800 Individual Medley SCY 8:29.31

27.41
30.46
31.21
31.63
32.57
31.91
31.89
31.18
37.28
36.16
36.32
36.58
29.22
29.34
28.88
27.27

Front half 248.26s · back half 261.05s

100 Freestyle LCM 54.33

26.28
28.05

Front half 26.28s · back half 28.05s

200 Freestyle LCM 1:57.66

26.61
29.65
31.23
30.17

Front half 56.26s · back half 61.40s

400 Freestyle LCM 4:09.58 RT 0.65s

58.54
63.42
65.20
62.42

Front half 121.96s · back half 127.62s

800 Freestyle LCM 8:40.50

28.11
30.84
31.48
33.06
32.77
32.62
33.40
33.07
33.34
33.14
33.30
33.19
33.68
32.89
23.08
42.53

Front half 255.35s · back half 265.15s

1500 Freestyle LCM 16:20.57

28.27
31.21
32.13
31.98
32.87
32.39
33.15
32.82
33.13
32.62
33.48
32.59
33.01
33.29
33.21
33.42
33.08
33.39
32.32
33.15
33.35
33.28
33.03
33.33
32.70
33.52
32.76
33.31
32.43
31.35

Front half 486.15s · back half 494.42s

100 Backstroke LCM 56.88 RT 0.54s

27.77
29.11

Front half 27.77s · back half 29.11s

200 Backstroke LCM 2:05.48

29.26
31.91
32.70
31.61

Front half 61.17s · back half 64.31s

100 Breaststroke LCM 1:09.64

31.92
37.72

Front half 31.92s · back half 37.72s

200 Breaststroke LCM 2:24.22

32.48
36.68
37.65
37.41

Front half 69.16s · back half 75.06s

100 Butterfly LCM 57.66

27.44
30.22

Front half 27.44s · back half 30.22s

200 Butterfly LCM 2:22.16

30.32
35.50
37.75
38.59

Front half 65.82s · back half 76.34s

200 Individual Medley LCM 2:05.35

27.37
32.01
36.58
29.39

Front half 59.38s · back half 65.97s

400 Individual Medley LCM 4:30.25 RT 0.70s

27.79
32.51
35.54
34.07
37.83
39.42
32.01
31.08

Front half 129.91s · back half 140.34s

Reaction time

fastest 0.54s average 0.662s slowest 0.80s 27 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
DateEventCourse TimeAge RoundMeet

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.

25 Freestyle SCY 10.18 3 swims
50 Freestyle SCY 21.76 8 swims
100 Freestyle SCY 46.32 9 swims
200 Freestyle SCY 1:40.70 13 swims
500 Freestyle SCY 4:36.24 14 swims
1000 Freestyle SCY 9:18.81 10 swims
1650 Freestyle SCY 15:50.42 6 swims
25 Backstroke SCY 11.80 2 swims
50 Backstroke SCY 24.12 4 swims
100 Backstroke SCY 49.37 39 swims
200 Backstroke SCY 1:46.07 27 swims
25 Breaststroke SCY 12.32 2 swims
50 Breaststroke SCY 27.38 3 swims
100 Breaststroke SCY 57.47 10 swims
200 Breaststroke SCY 2:02.54 25 swims
25 Butterfly SCY 10.24 2 swims
50 Butterfly SCY 23.04 3 swims
100 Butterfly SCY 49.89 14 swims
200 Butterfly SCY 1:54.34 6 swims
100 Individual Medley SCY 53.00 3 swims
200 Individual Medley SCY 1:49.13 43 swims
400 Individual Medley SCY 3:51.67 31 swims
800 Individual Medley SCY 8:29.31 2 swims
50 Freestyle LCM 24.84 3 swims
100 Freestyle LCM 54.33 7 swims
200 Freestyle LCM 1:57.66 9 swims
400 Freestyle LCM 4:09.58 13 swims
800 Freestyle LCM 8:40.50 5 swims
1500 Freestyle LCM 16:20.57 4 swims
50 Backstroke LCM 26.85 6 swims
100 Backstroke LCM 56.88 19 swims
200 Backstroke LCM 2:05.48 15 swims
50 Breaststroke LCM 31.96 4 swims
100 Breaststroke LCM 1:09.64 4 swims
200 Breaststroke LCM 2:24.22 11 swims
50 Butterfly LCM 26.70 3 swims
100 Butterfly LCM 57.66 11 swims
200 Butterfly LCM 2:22.16 1 swim
200 Individual Medley LCM 2:05.35 29 swims
400 Individual Medley LCM 4:30.25 15 swims