Mackenzie Della Costa

Fage 15FLBWTBAC

81 plausible swims · 15 meets · 2024-02-17 → 2026-03-01

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	28.10	BB+0.41s to A	2025-03-01	2025 Spring Area 3 Championships venue
100 Freestyle	SCY	1:01.36	BB+1.27s to A	2025-03-02	2025 Spring Area 3 Championships venue
200 Freestyle	SCY	2:21.25	B+0.76s to BB	2025-03-02	2025 Spring Area 3 Championships venue
50 Backstroke	SCY	31.51	BB+0.72s to A	2025-02-28	2025 Spring Area 3 Championships venue
100 Backstroke	SCY	1:10.02	BB+4.93s to A	2025-03-02	2025 Spring Area 3 Championships venue
200 Backstroke	SCY	2:32.08	BB+10.79s to A	2025-02-28	2025 Spring Area 3 Championships
50 Breaststroke	SCY	36.86	BB+0.97s to A	2024-07-06	2024 FE Arena Watermelon Crawl slow pool
100 Breaststroke	SCY	1:17.61	BB+2.62s to A	2025-10-10	WFLA Halloween Invitational
200 Breaststroke	SCY	2:59.67	B+4.98s to BB	2024-10-26	2024 GTSA TYR Swim Classic at Berkeley venue
50 Butterfly	SCY	33.29	B+0.50s to BB	2024-07-07	2024 FE Arena Watermelon Crawl slow pool
100 Individual Medley	SCY	1:11.71		2024-11-23	SPA - PYP NOVEMBER 2024 venue
200 Individual Medley	SCY	2:30.93	BB+6.14s to A	2025-03-01	2025 Spring Area 3 Championships venue
50 Freestyle	LCM	31.91	BB+0.32s to A	2024-07-14	2024 FL Summer Age Group Championships venue
100 Freestyle	LCM	1:14.10	B+0.31s to BB	2024-05-19	2024 SAINT PETE'S 2nd LONG COURSE MEET venue
200 Freestyle	LCM	2:41.91	B+1.72s to BB	2025-05-17	2025 SAINT PETE'S 2nd LONG COURSE MEET venue
400 Freestyle	LCM	5:29.97	BB+18.88s to A	2024-06-09	2024 TAMPA BAY SWIM CLASSIC venue
50 Backstroke	LCM	35.78	A+0.99s to AA	2025-05-17	2025 SAINT PETE'S 2nd LONG COURSE MEET venue
100 Backstroke	LCM	1:20.01	BB+4.32s to A	2025-05-17	2025 SAINT PETE'S 2nd LONG COURSE MEET venue
50 Breaststroke	LCM	44.42	B+0.73s to BB	2024-05-18	2024 SAINT PETE'S 2nd LONG COURSE MEET venue
100 Breaststroke	LCM	1:34.20	B+1.21s to BB	2024-07-13	2024 FL Summer Age Group Championships venue
50 Butterfly	LCM	38.76	B+1.77s to BB	2024-06-09	2024 TAMPA BAY SWIM CLASSIC venue
200 Individual Medley	LCM	2:59.22	BB+12.53s to A	2024-06-08	2024 TAMPA BAY SWIM CLASSIC 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
100 Breaststroke	SCY	1:08.21	flying	400 Medley Relay (leg 2)	2024-03-02	2024 Florida Swimming FLAGS NORTH

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

1541 points (3/6 events — incomplete)

Event	Time	Points
200 BK SCY	2:32.08	512
200 BR SCY	2:59.67	467
200 IM SCY	2:30.93	562
500 FR SCY	—	0
200 FL SCY	—	0
400 IM SCY	—	0

IMR 15-16 · SCY

2144 points (4/5 events — incomplete)

Event	Time	Points
200 FR SCY	2:21.25	495
100 BK SCY	1:10.02	514
100 BR SCY	1:17.61	573
200 IM SCY	2:30.93	562
100 FL 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 1:01.36

29.33

32.03

Front half 29.33s · back half 32.03s

200 Freestyle SCY 2:21.25

31.41

37.05

37.18

35.61

Front half 68.46s · back half 72.79s

100 Backstroke SCY 1:10.02

33.86

36.16

Front half 33.86s · back half 36.16s

200 Backstroke SCY 2:32.08

34.19

39.21

40.60

38.08

Front half 73.40s · back half 78.68s

200 Breaststroke SCY 2:59.67

39.38

45.70

48.50

46.09

Front half 85.08s · back half 94.59s

100 Individual Medley SCY 1:11.71

32.94

38.77

Front half 32.94s · back half 38.77s

200 Individual Medley SCY 2:30.93

33.06

38.68

45.31

33.88

Front half 71.74s · back half 79.19s

100 Freestyle LCM 1:14.10

34.78

39.32

Front half 34.78s · back half 39.32s

200 Freestyle LCM 2:41.91

36.55

42.07

44.30

38.99

Front half 78.62s · back half 83.29s

400 Freestyle LCM 5:29.97

36.53

42.69

43.47

43.41

42.66

42.51

39.04

39.66

Front half 166.10s · back half 163.87s

100 Backstroke LCM 1:20.01

36.57

43.44

Front half 36.57s · back half 43.44s

100 Breaststroke LCM 1:34.20 RT 0.74s

42.91

51.29

Front half 42.91s · back half 51.29s

200 Individual Medley LCM 2:59.22

42.10

47.40

50.76

38.96

Front half 89.50s · back half 89.72s

Reaction time

fastest 0.74s average 0.783s slowest 0.87s 3 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 28.10 8 swims

100 Freestyle SCY 1:01.36 7 swims

200 Freestyle SCY 2:21.25 2 swims

50 Backstroke SCY 31.51 7 swims

100 Backstroke SCY 1:10.02 8 swims

200 Backstroke SCY 2:32.08 2 swims

50 Breaststroke SCY 36.86 2 swims

100 Breaststroke SCY 1:17.61 8 swims

200 Breaststroke SCY 2:59.67 3 swims

50 Butterfly SCY 33.29 3 swims

100 Individual Medley SCY 1:11.71 2 swims

200 Individual Medley SCY 2:30.93 7 swims

50 Freestyle LCM 31.91 5 swims

100 Freestyle LCM 1:14.10 1 swim

200 Freestyle LCM 2:41.91 1 swim

400 Freestyle LCM 5:29.97 2 swims

50 Backstroke LCM 35.78 5 swims

100 Backstroke LCM 1:20.01 3 swims

50 Breaststroke LCM 44.42 1 swim

100 Breaststroke LCM 1:34.20 1 swim

50 Butterfly LCM 38.76 1 swim

200 Individual Medley LCM 2:59.22 2 swims