swimstats

Declan MacDonald

Mage 16CTEZFLMDMTNENEUNYNS

468 plausible swims · 73 meets · 2013-02-28 → 2026-06-28

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 23.54 A+0.15s to AA·+1.15s to Sectionals 2024-12-08 2024 NE YNS Reid Sacco Invitational slow pool
100 Freestyle SCY 50.52 AA+1.53s to AAA·+2.03s to Sectionals 2025-01-01 2025 NEW ENGLAND YMCA SWIM CHAMPIONSHIPS
200 Freestyle SCY 1:48.34 AA+1.25s to AAA·+2.05s to Sectionals 2025-01-01 2025 NEW ENGLAND YMCA SWIM CHAMPIONSHIPS
500 Freestyle SCY 4:52.89 AA+1.80s to AAA·+5.50s to Sectionals 2026-01-16 Winterfest 2026
1000 Freestyle SCY 10:05.47 AAA+26.58s to AAAA·+5.98s to Sectionals 2024-12-19 2024 NE CS SCY New England Senior Meet venue
1650 Freestyle SCY 16:40.74 AAA+35.75s to AAAA·Sectionals ✓+35.25s to Futures 2024-12-19 2024 NE CS SCY New England Senior Meet venue
50 Backstroke SCY 38.01 +6.22s to B·+14.32s to Futures 2020-12-05 2020 NE CL YNS Winter Champ Meet
100 Backstroke SCY 56.93 A+1.24s to AA·+2.44s to Sectionals 2024-12-08 2024 NE YNS Reid Sacco Invitational slow pool
200 Backstroke SCY 2:02.62 A+0.63s to AA·+4.03s to Sectionals 2024-12-21 2024 NE CS SCY New England Senior Meet venue
50 Breaststroke SCY 28.15 AAA+0.56s to AAAA·+1.86s to Futures 2025-12-18 2026 NE NSSC Senior Championships
100 Breaststroke SCY 1:00.41 AAA+2.62s to AAAA·Sectionals ✓+2.42s to Futures 2025-12-18 2026 NE NSSC Senior Championships
200 Breaststroke SCY 2:13.20 AA+1.91s to AAA·Sectionals ✓+5.21s to Futures 2026-01-16 Winterfest 2026
50 Butterfly SCY 25.11 AA+0.12s to AAA·+2.22s to Futures 2025-12-18 2026 NE NSSC Senior Championships
100 Butterfly SCY 54.04 AA+1.15s to AAA·+0.85s to Sectionals 2025-12-18 2026 NE NSSC Senior Championships
200 Butterfly SCY 1:56.35 AAA+3.26s to AAAA·Sectionals ✓+2.66s to Futures 2025-12-18 2026 NE NSSC Senior Championships
100 Individual Medley SCY 59.05 2025-01-01 2025 ne yns september sprint specialty results
200 Individual Medley SCY 1:59.45 AA+0.56s to AAA·+0.06s to Sectionals 2025-12-18 2026 NE NSSC Senior Championships
400 Individual Medley SCY 4:19.05 AA+4.56s to AAA·+3.96s to Sectionals 2025-01-01 NE Swimmimg 15-18 Age Group Championships
50 Freestyle LCM 27.64 A+0.55s to AA·+2.15s to Sectionals 2025-01-01 2025 ne yns june ymca meet results
100 Freestyle LCM 58.78 AA+2.29s to AAA·+3.29s to Sectionals 2024-06-01 2024 NE YNS May Prelims Finals Meet venue
200 Freestyle LCM 2:06.22 AA+2.63s to AAA·+4.93s to Sectionals 2024-07-19 2024 NE BGSC LCM 11-14 Championships venue
400 Freestyle LCM 4:40.24 A+4.55s to AA·+22.65s to Sectionals 2024-05-31 2024 NE YNS May Distance Meet venue
800 Freestyle LCM 9:14.04 AA+7.55s to AAA·+15.65s to Sectionals 2025-01-01 2025 NE Swimming LC Senior Championships - Brown University, S#: NE25-0710CS venue
1500 Freestyle LCM 17:53.97 AA+22.38s to AAA·+34.98s to Sectionals 2024-05-31 2024 NE YNS May Distance Meet venue
50 Backstroke LCM 30.31 AA+0.52s to AAA·+2.42s to Futures 2026-01-01 2026 NE SHAWMUT America's Cup
100 Backstroke LCM 1:11.81 BB+3.72s to A·+9.82s to Sectionals 2026-01-01 2026 ne yns lc imx imr meet results
200 Backstroke LCM 2:27.48 A+5.99s to AA·+12.69s to Sectionals 2024-07-21 2024 NE BGSC LCM 11-14 Championships venue
50 Breaststroke LCM 32.34 AAA+0.85s to AAAA·+1.45s to Futures 2025-01-01 2025 NE Swimming LC Senior Championships - Brown University, S#: NE25-0710CS venue
100 Breaststroke LCM 1:11.43 AA+0.84s to AAA·+1.74s to Sectionals 2024-07-19 2024 NE BGSC LCM 11-14 Championships venue
200 Breaststroke LCM 2:39.05 AA+5.56s to AAA·+6.46s to Sectionals 2024-08-10 2024 EZ LC Age Group Championship venue
50 Butterfly LCM 28.66 AA+0.47s to AAA·+2.37s to Futures 2026-01-01 2026 NE SHAWMUT America's Cup
100 Butterfly LCM 1:02.03 AA+1.54s to AAA·+1.84s to Sectionals 2025-05-30 2025 YNS LCM Prelims Finals Meet
200 Butterfly LCM 2:20.80 AA+5.41s to AAA·+4.51s to Sectionals 2024-08-09 2024 EZ LC Age Group Championship venue
200 Individual Medley LCM 2:21.29 AA+2.60s to AAA·+5.10s to Sectionals 2025-01-01 2025 NE Swimming LC Senior Championships - Brown University, S#: NE25-0710CS venue
400 Individual Medley LCM 5:03.75 AA+8.16s to AAA·+13.86s to Sectionals 2025-01-01 2025 NE Swimming LC Senior Championships - Brown University, S#: NE25-0710CS venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 16.

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 23.46 flat 200 Free Relay 2025-12-20 2026 NE NSSC Senior Championships
50 Freestyle SCY 23.48 flying 200 Free Relay (leg 3) 2025-12-19 2026 NE NSSC Senior Championships
100 Freestyle SCY 49.88 flying 400 Free Relay (leg 2) 2025-12-19 2026 NE NSSC Senior Championships
50 Breaststroke SCY 28.36 flying 200 Medley Relay (leg 2) 2026-01-18 Winterfest 2026
100 Breaststroke SCY 1:00.94 flying 400 Medley Relay (leg 2) 2024-12-22 2024 NE CS SCY New England Senior Meet
50 Butterfly SCY 26.04 flying 200 Medley Relay (leg 3) 2024-02-23 2024 NE CRA 11-14 SCY Age Group Championship
100 Butterfly SCY 57.78 flying 400 Medley Relay (leg 3) 2024-02-24 2024 NE CRA 11-14 SCY Age Group Championship
100 Breaststroke LCM 1:13.10 flying 400 Medley Relay (leg 2) 2025-07-11 2025 NE CS LCM Senior Championships
100 Butterfly LCM 1:06.27 flying 400 Medley Relay (leg 3) 2025-06-28 2025 NE YNS June YMCA Last Chance Meet

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

4975 points (6/6 events)

EventTime Points
500 FR SCY 4:52.89 839
200 BK SCY 2:02.62 735
200 BR SCY 2:13.20 832
200 FL SCY 1:56.35 908
200 IM SCY 1:59.45 850
400 IM SCY 4:19.05 811

IMR 15-16 · SCY

4069 points (5/5 events)

EventTime Points
200 FR SCY 1:48.34 834
100 BK SCY 56.93 705
100 BR SCY 1:00.41 870
100 FL SCY 54.04 810
200 IM SCY 1:59.45 850

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

PR splits

100 Freestyle SCY 50.52 split/total mismatch

24.41
1.70

Front half 24.41s · back half 26.11s

200 Freestyle SCY 1:48.34 split/total mismatch

25.69
27.62
27.94
27.09

500 Freestyle SCY 4:52.89

26.85
28.96
29.15
29.59
30.04
30.08
29.47
30.30
29.81
28.64

Front half 144.59s · back half 148.30s

1650 Freestyle SCY 16:40.74

26.87
29.81
30.06
30.85
29.63
30.29
30.47
29.20
30.85
30.22
31.02
30.66
30.27
30.31
30.50
31.16
30.46
31.22
31.04
30.58
30.25
30.58
31.25
31.03
30.51
31.39
31.24
30.59
31.01
29.99
29.98
29.47
27.98

100 Backstroke SCY 56.93

28.00
28.93

Front half 28.00s · back half 28.93s

200 Backstroke SCY 2:02.62

29.18
31.53
31.32
30.59

Front half 60.71s · back half 61.91s

100 Breaststroke SCY 1:00.41 split/total mismatch

28.10
4.21

Front half 28.10s · back half 32.31s

200 Breaststroke SCY 2:13.20

30.20
34.17
34.78
34.05

Front half 64.37s · back half 68.83s

100 Butterfly SCY 54.04 split/total mismatch

25.53
2.98

Front half 25.53s · back half 28.51s

200 Butterfly SCY 1:56.35 split/total mismatch

26.59
29.66
30.25
29.85

200 Individual Medley SCY 1:59.45 split/total mismatch

26.63
31.20
33.72
27.90

400 Individual Medley SCY 4:19.05 split/total mismatch

28.63
32.13
34.26
32.99
35.42
37.41
30.12
28.09

100 Freestyle LCM 58.78

28.44
30.34

Front half 28.44s · back half 30.34s

200 Freestyle LCM 2:06.22

30.22
32.16
32.51
31.33

Front half 62.38s · back half 63.84s

800 Freestyle LCM 9:14.04 split/total mismatch

31.39
32.96
34.66
34.48
34.85
34.44
35.27
35.44
35.20
35.07
35.48
35.83
35.16
35.49
34.46
33.86

1500 Freestyle LCM 17:53.97

31.51
34.68
34.56
36.22
35.73
35.14
36.99
35.41
36.41
35.76
36.18
36.69
36.36
36.39
35.71
36.64
36.73
35.00
35.26
35.76
36.84
36.32
36.91
38.04
36.84
35.96
36.18
35.96
32.78
35.01

Front half 533.74s · back half 540.23s

200 Backstroke LCM 2:27.48

34.48
37.59
38.38
37.03

Front half 72.07s · back half 75.41s

100 Breaststroke LCM 1:11.43

34.02
37.41

Front half 34.02s · back half 37.41s

200 Breaststroke LCM 2:39.05

35.81
41.82
41.34
40.08

Front half 77.63s · back half 81.42s

100 Butterfly LCM 1:02.03 split/total mismatch

29.09
3.85

Front half 29.09s · back half 32.94s

200 Butterfly LCM 2:20.80

32.34
36.07
36.74
35.65

Front half 68.41s · back half 72.39s

200 Individual Medley LCM 2:21.29 split/total mismatch

30.54
38.22
41.09
31.44

400 Individual Medley LCM 5:03.75 split/total mismatch

32.31
38.82
40.28
40.06
43.45
42.81
35.04
30.98

Reaction time

fastest 0.64s average 0.655s slowest 0.68s 4 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 23.54 11 swims
100 Freestyle SCY 50.52 17 swims
200 Freestyle SCY 1:48.34 16 swims
500 Freestyle SCY 4:52.89 12 swims
1000 Freestyle SCY 10:05.47 1 swim
1650 Freestyle SCY 16:40.74 2 swims
50 Backstroke SCY 38.01 1 swim
100 Backstroke SCY 56.93 18 swims
200 Backstroke SCY 2:02.62 14 swims
50 Breaststroke SCY 28.15 10 swims
100 Breaststroke SCY 1:00.41 43 swims
200 Breaststroke SCY 2:13.20 21 swims
50 Butterfly SCY 25.11 3 swims
100 Butterfly SCY 54.04 26 swims
200 Butterfly SCY 1:56.35 32 swims
100 Individual Medley SCY 59.05 4 swims
200 Individual Medley SCY 1:59.45 37 swims
400 Individual Medley SCY 4:19.05 22 swims
50 Freestyle LCM 27.64 16 swims
100 Freestyle LCM 58.78 10 swims
200 Freestyle LCM 2:06.22 12 swims
400 Freestyle LCM 4:40.24 3 swims
800 Freestyle LCM 9:14.04 6 swims
1500 Freestyle LCM 17:53.97 2 swims
50 Backstroke LCM 30.31 6 swims
100 Backstroke LCM 1:11.81 4 swims
200 Backstroke LCM 2:27.48 9 swims
50 Breaststroke LCM 32.34 9 swims
100 Breaststroke LCM 1:11.43 20 swims
200 Breaststroke LCM 2:39.05 17 swims
50 Butterfly LCM 28.66 9 swims
100 Butterfly LCM 1:02.03 18 swims
200 Butterfly LCM 2:20.80 11 swims
200 Individual Medley LCM 2:21.29 13 swims
400 Individual Medley LCM 5:03.75 11 swims