swimstats

Mackenzie Duncan

Fage 15CZINLEMISDBBALELESDNCATSTRSULESDUNUNAT

551 plausible swims · 90 meets · 2017-06-16 → 2026-07-19

Personal records

EventCourseBest CutDateMeet
25 Freestyle SCY 15.36 2020-02-16 LESI 8 & U Championships 2020venue
50 Freestyle SCY 25.60 AA+0.21s to AAA·+0.31s to Sectionals 2025-03-08 2025 Winter LE Age Group Championshipvenue
100 Freestyle SCY 56.11 AA+1.02s to AAA·+1.62s to Sectionals 2025-03-09 2025 Winter LE Age Group Championshipvenue
200 Freestyle SCY 2:04.38 A+0.09s to AA·+6.49s to Sectionals 2025-03-08 2025 Winter LE Age Group Championshipvenue
500 Freestyle SCY 5:39.62 A+4.33s to AA·+24.63s to Sectionals 2024-03-09 Lake Erie Age Group Championshipsfast pool
1000 Freestyle SCY 11:38.70 A+8.81s to AA·+50.31s to Sectionals 2023-11-19 The 2023 Mark J. Braun Fall Classicvenue
1650 Freestyle SCY 19:20.01 AA+43.52s to AAA·+63.52s to Sectionals 2023-11-17 The 2023 Mark J. Braun Fall Classicvenue
25 Backstroke SCY 18.63 2019-12-15 2019 Winter Breakout Meetslow pool
50 Backstroke SCY 29.30 AA+1.11s to AAA·+2.01s to Sectionals 2024-03-10 Lake Erie Age Group Championshipsfast pool
100 Backstroke SCY 59.98 AA+0.29s to AAA·Sectionals ✓+2.89s to Futures 2025-03-08 2025 Winter LE Age Group Championshipvenue
200 Backstroke SCY 2:09.96 AA+0.47s to AAA·Sectionals ✓+5.77s to Futures 2025-03-09 2025 Winter LE Age Group Championshipvenue
25 Breaststroke SCY 22.28 2019-12-15 2019 Winter Breakout Meetslow pool
50 Breaststroke SCY 36.64 BB+0.75s to A·+5.95s to Sectionals 2021-11-21 The Mark J. Braun Fall Classic 2023fast pool
100 Breaststroke SCY 1:17.35 BB+2.36s to A·+7.86s to Sectionals 2024-02-04 Last Chance Meetvenue
200 Breaststroke SCY 2:47.72 BB+6.43s to A·+16.73s to Sectionals 2025-02-09 Last Chance Meetvenue
25 Butterfly SCY 16.39 2020-02-16 LESI 8 & U Championships 2020venue
50 Butterfly SCY 29.82 A+0.83s to AA·+3.13s to Sectionals 2023-12-03 2023 NCAT Winter Invitevenue
100 Butterfly SCY 1:09.39 BB+4.40s to A·+9.80s to Sectionals 2023-10-01 LESD 2022 Season Opener Meetslow pool
200 Butterfly SCY 2:33.48 BB+9.29s to A·+20.39s to Sectionals 2025-02-09 Last Chance Meetvenue
100 Individual Medley SCY 1:05.51 2024-03-09 Lake Erie Age Group Championshipsfast pool
200 Individual Medley SCY 2:16.61 AA+3.92s to AAA·+3.62s to Sectionals 2025-03-09 2025 Winter LE Age Group Championshipvenue
400 Individual Medley SCY 4:47.53 AA+2.44s to AAA·+3.54s to Sectionals 2025-03-07 2025 Winter LE Age Group Championshipvenue
50 Freestyle LCM 29.23 AA+0.24s to AAA·+0.44s to Sectionals 2026-03-28 2026 Central Zone East Spring Speedo Sectionavenue
100 Freestyle LCM 1:03.96 AA+1.47s to AAA·+2.17s to Sectionals 2026-07-19 2026 Central Zone East Summer Speedo Sectionafast pool
200 Freestyle LCM 2:20.56 AA+5.07s to AAA·+7.47s to Sectionals 2024-07-27 2024 LE Age Group and Senior LC Championshipsvenue
400 Freestyle LCM 5:01.12 A+3.03s to AA·+18.73s to Sectionals 2024-07-27 2024 LE Age Group and Senior LC Championshipsvenue
800 Freestyle LCM 10:24.38 A+10.19s to AA·+42.99s to Sectionals 2023-08-03 2023 Central Zone 14 & U Championship - IN
1500 Freestyle LCM 19:46.12 A+9.83s to AA·+69.63s to Sectionals 2023-08-03 2025 Central Zone 14 & Under Championship Meeslow pool
50 Backstroke LCM 31.28 AAAA·Sectionals ✓+0.39s to Futures 2026-07-17 2026 Central Zone East Summer Speedo Sectionafast pool
100 Backstroke LCM 1:10.46 AA+1.07s to AAA·Sectionals ✓+3.67s to Futures 2026-07-18 2026 Central Zone East Summer Speedo Sectionafast pool
200 Backstroke LCM 2:31.76 AA+2.57s to AAA·+0.37s to Sectionals 2024-07-26 2024 LE Age Group and Senior LC Championshipsvenue
50 Breaststroke LCM 45.51 B+1.82s to BB·+9.92s to Sectionals 2022-06-19 Holtrey Summer Classicvenue
100 Breaststroke LCM 1:32.63 BB+6.74s to A·+12.64s to Sectionals 2024-07-13 2024 Grizzly Summer Sizzlervenue
200 Breaststroke LCM 3:15.42 BB+9.63s to A·+22.63s to Sectionals 2024-07-14 2024 Grizzly Summer Sizzlervenue
50 Butterfly LCM 35.43 BB+1.34s to A·+5.14s to Sectionals 2023-05-21 2023 Robert F. Busbey Invitationalvenue
100 Butterfly LCM 1:17.34 BB+3.85s to A·+9.25s to Sectionals 2024-05-11 2024 NCAT TYR LC Age Group & Openvenue
200 Butterfly LCM 2:57.84 B+0.55s to BB·+25.85s to Sectionals 2024-07-13 2024 Grizzly Summer Sizzlervenue
200 Individual Medley LCM 2:40.16 A+0.37s to AA·+8.87s to Sectionals 2024-07-26 2024 LE Age Group and Senior LC Championshipsvenue
400 Individual Medley LCM 5:35.18 AA+9.89s to AAA·+10.79s to Sectionals 2024-07-25 2024 LE Age Group and Senior LC Championshipsvenue

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

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 35.56 flat 200 Free Relay 2020-01-05 2020 FAB 50s Meet
50 Freestyle SCY 25.24 flying 200 Free Relay (leg 3) 2025-03-07 2025 Winter LE Age Group Championship
100 Freestyle SCY 1:00.02 flat 400 Free Relay 2024-11-23 The 2024 Mark J. Braun Fall Classic
100 Freestyle SCY 57.19 flying 400 Free Relay (leg 3) 2025-03-08 2025 Winter LE Age Group Championship
50 Backstroke SCY 28.43 flat 200 Medley Relay 2025-03-07 2025 Winter LE Age Group Championship
100 Backstroke SCY 1:02.62 flat 400 Medley Relay 2025-03-09 2025 Winter LE Age Group Championship
50 Breaststroke SCY 39.17 flying 200 Medley Relay (leg 2) 2022-03-13 2022 Lake Erie SC Winter JO and 8U Champs
50 Freestyle LCM 30.99 flying 200 Free Relay (leg 2) 2024-07-26 2024 LE Age Group and Senior LC Championships
100 Freestyle LCM 1:02.83 flying 400 Free Relay (leg 3) 2026-07-17 2026 Central Zone East Summer Speedo Sectiona
50 Backstroke LCM 31.40 flat 200 Medley Relay 2026-07-17 2026 Central Zone East Summer Speedo Sectiona
100 Backstroke LCM 1:14.72 flat 400 Medley Relay 2024-07-27 2024 LE Age Group and Senior LC Championships
100 Butterfly LCM 1:24.81 flying 400 Medley Relay (leg 3) 2023-05-21 2023 Robert F. Busbey Invitational

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

4173 points (6/6 events)

EventTime Points
500 FR SCY 5:39.62 694
200 BK SCY 2:09.96 820
200 BR SCY 2:47.72 575
200 FL SCY 2:33.48 532
200 IM SCY 2:16.61 758
400 IM SCY 4:47.53 794

IMR 15-16 · SCY

3399 points (5/5 events)

EventTime Points
200 FR SCY 2:04.38 726
100 BK SCY 59.98 817
100 BR SCY 1:17.35 579
100 FL SCY 1:09.39 519
200 IM SCY 2:16.61 758

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

PR splits

100 Freestyle SCY 56.11

27.38
28.73

Front half 27.38s · back half 28.73s

200 Freestyle SCY 2:04.38

28.36
31.84
32.61
31.57

Front half 60.20s · back half 64.18s

500 Freestyle SCY 5:39.62

30.03
33.17
33.92
34.42
34.31
34.23
35.01
35.00
35.32
34.21

Front half 165.85s · back half 173.77s

1650 Freestyle SCY 19:20.01

29.41
33.83
34.50
34.45
34.47
34.81
34.90
35.03
35.26
35.50
35.58
35.79
35.56
35.42
35.63
35.56
35.61
35.95
35.55
35.89
35.51
35.68
35.62
35.93
35.82
35.89
35.75
36.04
35.76
35.81
35.49
35.36
32.65

100 Backstroke SCY 59.98

29.17
30.81

Front half 29.17s · back half 30.81s

200 Backstroke SCY 2:09.96

30.69
33.04
33.58
32.65

Front half 63.73s · back half 66.23s

100 Breaststroke SCY 1:17.35

36.76
40.59

Front half 36.76s · back half 40.59s

200 Breaststroke SCY 2:47.72

38.65
43.46
43.17
42.44

Front half 82.11s · back half 85.61s

100 Butterfly SCY 1:09.39

31.94
37.45

Front half 31.94s · back half 37.45s

200 Butterfly SCY 2:33.48

33.43
38.88
40.90
40.27

Front half 72.31s · back half 81.17s

100 Individual Medley SCY 1:05.51

30.46
35.05

Front half 30.46s · back half 35.05s

200 Individual Medley SCY 2:16.61

30.15
34.32
41.59
30.55

Front half 64.47s · back half 72.14s

400 Individual Medley SCY 4:47.53

30.97
36.18
36.24
34.80
42.99
42.43
32.90
31.02

Front half 138.19s · back half 149.34s

100 Freestyle LCM 1:03.96

29.91
34.05

Front half 29.91s · back half 34.05s

200 Freestyle LCM 2:20.56

33.20
35.82
36.94
34.60

Front half 69.02s · back half 71.54s

400 Freestyle LCM 5:01.12

33.18
38.90
37.02
39.72
37.66
39.54
37.33
37.77

Front half 148.82s · back half 152.30s

800 Freestyle LCM 10:24.38

72.34
77.85
78.32
79.02
79.27
79.81
79.67
78.10

Front half 307.53s · back half 316.85s

1500 Freestyle LCM 19:46.12

34.20
38.07
39.02
39.19
39.27
39.31
39.68
39.15
39.58
39.13
39.65
39.29
39.71
38.96
39.49
39.45
39.78
39.59
39.95
40.21
40.15
40.32
40.71
40.38
40.64
40.24
40.93
40.66
39.96
39.45

Front half 583.70s · back half 602.42s

100 Backstroke LCM 1:10.46

32.92
37.54

Front half 32.92s · back half 37.54s

200 Backstroke LCM 2:31.76

35.89
38.57
39.20
38.10

Front half 74.46s · back half 77.30s

100 Breaststroke LCM 1:32.63

43.83
48.80

Front half 43.83s · back half 48.80s

200 Breaststroke LCM 3:15.42

45.76
50.41
50.15
49.10

Front half 96.17s · back half 99.25s

100 Butterfly LCM 1:17.34

36.71
40.63

Front half 36.71s · back half 40.63s

200 Butterfly LCM 2:57.84

38.29
45.79
48.26
45.50

Front half 84.08s · back half 93.76s

200 Individual Medley LCM 2:40.16

34.70
39.59
49.95
35.92

Front half 74.29s · back half 85.87s

400 Individual Medley LCM 5:35.18

35.13
41.59
42.31
39.82
51.95
48.60
38.85
36.93

Front half 158.85s · back half 176.33s

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 15.36 5 swims
50 Freestyle SCY 25.60 28 swims
100 Freestyle SCY 56.11 15 swims
200 Freestyle SCY 2:04.38 24 swims
500 Freestyle SCY 5:39.62 16 swims
1000 Freestyle SCY 11:38.70 1 swim
1650 Freestyle SCY 19:20.01 2 swims
25 Backstroke SCY 18.63 1 swim
50 Backstroke SCY 29.30 32 swims
100 Backstroke SCY 59.98 26 swims
200 Backstroke SCY 2:09.96 22 swims
25 Breaststroke SCY 22.28 1 swim
50 Breaststroke SCY 36.64 21 swims
100 Breaststroke SCY 1:17.35 15 swims
200 Breaststroke SCY 2:47.72 3 swims
25 Butterfly SCY 16.39 2 swims
50 Butterfly SCY 29.82 20 swims
100 Butterfly SCY 1:09.39 5 swims
200 Butterfly SCY 2:33.48 1 swim
100 Individual Medley SCY 1:05.51 21 swims
200 Individual Medley SCY 2:16.61 18 swims
400 Individual Medley SCY 4:47.53 3 swims
50 Freestyle LCM 29.23 24 swims
100 Freestyle LCM 1:03.96 29 swims
200 Freestyle LCM 2:20.56 24 swims
400 Freestyle LCM 5:01.12 14 swims
800 Freestyle LCM 10:24.38 8 swims
1500 Freestyle LCM 19:46.12 5 swims
50 Backstroke LCM 31.28 27 swims
100 Backstroke LCM 1:10.46 32 swims
200 Backstroke LCM 2:31.76 21 swims
50 Breaststroke LCM 45.51 9 swims
100 Breaststroke LCM 1:32.63 16 swims
200 Breaststroke LCM 3:15.42 5 swims
50 Butterfly LCM 35.43 10 swims
100 Butterfly LCM 1:17.34 8 swims
200 Butterfly LCM 2:57.84 1 swim
200 Individual Medley LCM 2:40.16 25 swims
400 Individual Medley LCM 5:35.18 5 swims