swimstats

Grace Costello

Fage 15COFGFLPSASJACUNUN-SJ

166 plausible swims · 35 meets · 2024-01-13 → 2026-07-19

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 26.92 A+0.43s to AA·+0.83s to Sectionals 2025-01-18 2025 G.O.A.T. TYR Team Challenge and SYOAvenue
100 Freestyle SCY 56.49 AA+1.40s to AAA·Sectionals ✓+4.60s to Futures 2025-09-21 2025 Planet Swim Season Openervenue
200 Freestyle SCY 1:58.83 AAA+5.34s to AAAA·Sectionals ✓+6.54s to Futures 2026-03-13 2026 Fl Swimming Spring Senior Championshipsvenue
500 Freestyle SCY 5:15.56 AAA+9.47s to AAAA·Sectionals ✓+12.97s to Futures 2026-03-14 2026 Fl Swimming Spring Senior Championshipsvenue
1000 Freestyle SCY 10:40.40 AAA+10.51s to AAAA·Sectionals ✓+19.91s to Futures 2026-03-12 2026 Fl Swimming Spring Senior Championshipsvenue
1650 Freestyle SCY 18:11.91 AAA+26.22s to AAAA·Sectionals ✓+57.52s to Futures 2025-10-26 2025 SJAC Halloween Invitationalvenue
50 Backstroke SCY 30.79 A+1.30s to AA·+4.50s to Futures 2025-03-02 2025 Area 1 Spring Championshipsvenue
100 Backstroke SCY 1:05.75 BB+0.66s to A·+4.36s to Sectionals 2025-09-21 2025 Planet Swim Season Openervenue
200 Backstroke SCY 2:22.98 BB+1.69s to A·+9.69s to Sectionals 2025-11-23 2025 SJAC Turkey Meetvenue
100 Breaststroke SCY 1:20.78 BB+5.79s to A·+10.19s to Sectionals 2026-01-17 2026 G.O.A.T. TYR Team Challenge and SYOAvenue
50 Butterfly SCY 29.79 A+0.80s to AA·+4.10s to Futures 2025-03-02 2025 Area 1 Spring Championshipsvenue
100 Butterfly SCY 1:01.38 AA+1.79s to AAA·+0.29s to Sectionals 2025-12-05 RAFC Winter Classicvenue
200 Butterfly SCY 2:14.59 AA+2.40s to AAA·Sectionals ✓+9.20s to Futures 2025-12-07 RAFC Winter Classicvenue
200 Individual Medley SCY 2:22.41 A+3.62s to AA·+5.92s to Sectionals 2025-10-12 2025 October Classicvenue
400 Individual Medley SCY 5:04.98 A+6.99s to AA·+13.39s to Sectionals 2025-11-22 2025 SJAC Turkey Meetvenue
50 Freestyle LCM 30.25 AA+1.26s to AAA·+0.66s to Sectionals 2025-04-26 14th Annual JAX50 Sprint Dual Challengevenue
100 Freestyle LCM 1:04.33 AA+1.84s to AAA·Sectionals ✓+5.04s to Futures 2025-06-06 2025 June Sprintsvenue
200 Freestyle LCM 2:16.88 AA+1.39s to AAA·Sectionals ✓+9.09s to Futures 2025-06-20 2025 Planet Swim Summer Championshipsvenue
400 Freestyle LCM 4:42.50 AAA+10.31s to AAAA·Sectionals ✓+13.71s to Futures 2026-06-27 2026 Planet Swim Summer Championshipsvenue
800 Freestyle LCM 9:39.80 AAA+19.01s to AAAA·Sectionals ✓+26.01s to Futures 2026-07-16 2026 Florida Summer Senior Championshipsvenue
1500 Freestyle LCM 18:39.77 AAA+45.78s to AAAA·Sectionals ✓+59.58s to Futures 2026-07-19 2026 Florida Summer Senior Championshipsvenue
50 Backstroke LCM 35.31 A+0.52s to AA·+4.42s to Futures 2025-06-06 2025 June Sprintsvenue
100 Backstroke LCM 1:15.67 A+3.08s to AA·+4.28s to Sectionals 2026-06-26 2026 Planet Swim Summer Championshipsvenue
200 Backstroke LCM 2:52.20 BB+9.41s to A·+18.81s to Sectionals 2025-05-18 2025 PSA May Invitevenue
50 Butterfly LCM 33.84 A+1.15s to AA·+4.35s to Futures 2025-04-27 14th Annual JAX50 Sprint Dual Challengevenue
100 Butterfly LCM 1:09.59 AA+2.20s to AAA·+0.30s to Sectionals 2026-06-27 2026 Planet Swim Summer Championshipsvenue
200 Butterfly LCM 2:37.75 A+0.96s to AA·+3.46s to Sectionals 2026-06-28 2026 Planet Swim Summer Championshipsvenue
200 Individual Medley LCM 2:55.63 BB+8.94s to A·+18.64s to Sectionals 2024-05-19 PSA May Invitevenue
400 Individual Medley LCM 5:51.86 A+11.77s to AA·+19.37s to Sectionals 2026-05-16 2026 PSA May Invitefast pool

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 26.11 flat 200 Free Relay 2025-12-07 RAFC Winter Classic
50 Freestyle SCY 1:57.50 flying 200 Medley Relay (leg 4) 2025-03-08 2025 Florida Swimming FLAGS NORTH
50 Freestyle SCY 26.09 flying 200 Free Relay (leg 3) 2024-03-01 2024 Florida Swimming FLAGS NORTH
100 Freestyle SCY 57.38 flying 400 Medley Relay (leg 4) 2024-03-02 2024 Florida Swimming FLAGS NORTH
100 Freestyle SCY 55.73 flying 400 Free Relay (leg 4) 2025-12-06 RAFC Winter Classic
200 Freestyle SCY 2:07.00 flying 800 Free Relay (leg 3) 2024-02-29 2024 Florida Swimming FLAGS NORTH
50 Backstroke SCY 30.73 flat 200 Medley Relay 2024-02-29 2024 Florida Swimming FLAGS NORTH
100 Butterfly SCY 1:01.09 flying 400 Medley Relay (leg 3) 2025-12-07 RAFC Winter Classic
50 Freestyle LCM 30.07 flat 200 Free Relay 2025-07-11 2025 FL Summer Age Group Championships
50 Freestyle LCM 38.33 flying 200 Free Relay (leg 2) 2024-07-12 2024 FL Summer Age Group Championships
100 Freestyle LCM 1:04.00 flying 400 Free Relay (leg 2) 2025-07-12 2025 FL Summer Age Group Championships
200 Freestyle LCM 2:16.24 flat 800 Free Relay 2025-07-10 2025 FL Summer Age Group Championships
200 Freestyle LCM 2:25.65 flying 800 Free Relay (leg 4) 2024-07-11 2024 FL Summer Age Group Championships
50 Backstroke LCM 35.07 flat 200 Medley Relay 2025-07-10 2025 FL Summer Age Group Championships
100 Backstroke LCM 1:20.06 flat 400 Medley Relay 2024-07-12 2024 FL Summer Age Group Championships
100 Butterfly LCM 1:09.33 flying 400 Medley Relay (leg 3) 2025-07-11 2025 FL Summer 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 15-16 · SCY

3605 points (5/6 events — incomplete)

EventTime Points
500 FR SCY 5:15.56 866
200 BK SCY 2:22.98 616
200 FL SCY 2:14.59 789
200 IM SCY 2:22.41 669
400 IM SCY 5:04.98 665
200 BR SCY— 0

IMR 15-16 · SCY

3379 points (5/5 events)

EventTime Points
200 FR SCY 1:58.83 832
100 BK SCY 1:05.75 620
100 BR SCY 1:20.78 508
100 FL SCY 1:01.38 750
200 IM SCY 2:22.41 669

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

PR splits

100 Freestyle SCY 56.49

27.33
29.16

Front half 27.33s · back half 29.16s

200 Freestyle SCY 1:58.83

27.63
30.05
30.79
30.36

Front half 57.68s · back half 61.15s

500 Freestyle SCY 5:15.56

28.36
30.79
31.96
32.29
32.33
32.03
32.13
31.96
32.34
31.37

Front half 155.73s · back half 159.83s

1000 Freestyle SCY 10:40.40

28.46
30.71
31.39
31.71
31.74
31.98
32.15
32.28
32.24
32.40
32.34
32.43
32.66
32.55
32.71
32.48
32.76
32.89
32.62
31.90

Front half 315.06s · back half 325.34s

1650 Freestyle SCY 18:11.91

29.40
32.01
32.95
33.26
33.34
32.83
33.30
33.17
33.14
32.97
33.25
32.88
33.08
33.17
33.38
33.34
33.44
33.45
33.36
33.05
33.31
32.84
33.05
33.28
33.58
33.47
33.70
33.47
33.51
33.62
33.89
33.67
31.75

100 Backstroke SCY 1:05.75

31.57
34.18

Front half 31.57s · back half 34.18s

200 Backstroke SCY 2:22.98

33.49
36.05
36.94
36.50

Front half 69.54s · back half 73.44s

100 Breaststroke SCY 1:20.78

38.05
42.73

Front half 38.05s · back half 42.73s

100 Butterfly SCY 1:01.38

28.21
33.17

Front half 28.21s · back half 33.17s

200 Butterfly SCY 2:14.59

28.95
33.35
35.41
36.88

Front half 62.30s · back half 72.29s

200 Individual Medley SCY 2:22.41

29.02
36.33
44.65
32.41

Front half 65.35s · back half 77.06s

400 Individual Medley SCY 5:04.98

30.35
35.04
39.29
38.38
46.18
46.87
35.25
33.62

Front half 143.06s · back half 161.92s

100 Freestyle LCM 1:04.33

30.98
33.35

Front half 30.98s · back half 33.35s

200 Freestyle LCM 2:16.88

31.44
34.39
35.55
35.50

Front half 65.83s · back half 71.05s

400 Freestyle LCM 4:42.50

31.66
34.49
35.59
35.68
36.32
36.38
36.57
35.81

Front half 137.42s · back half 145.08s

800 Freestyle LCM 9:39.80

32.35
35.52
36.24
36.70
36.54
36.64
36.45
36.61
36.05
36.81
36.66
37.03
36.90
37.19
36.65
35.46

Front half 287.05s · back half 292.75s

1500 Freestyle LCM 18:39.77

33.19
36.01
37.30
37.45
37.85
37.81
37.77
37.36
37.53
37.32
37.04
37.31
37.39
37.74
37.65
37.70
37.54
37.59
37.54
37.55
37.48
37.49
37.52
37.60
37.67
37.60
37.88
37.53
37.57
36.79

Front half 556.72s · back half 563.05s

100 Backstroke LCM 1:15.67

35.68
39.99

Front half 35.68s · back half 39.99s

200 Backstroke LCM 2:52.20

83.28
88.92

Front half 83.28s · back half 88.92s

100 Butterfly LCM 1:09.59

32.26
37.33

Front half 32.26s · back half 37.33s

200 Butterfly LCM 2:37.75

32.83
39.12
42.70
43.10

Front half 71.95s · back half 85.80s

200 Individual Medley LCM 2:55.63

37.65
44.61
55.68
37.69

Front half 82.26s · back half 93.37s

400 Individual Medley LCM 5:51.86

33.64
40.33
45.48
43.71
55.63
56.67
39.23
37.17

Front half 163.16s · back half 188.70s

Reaction time

fastest 0.63s average 0.749s slowest 0.81s 11 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.

50 Freestyle SCY 26.92 4 swims
100 Freestyle SCY 56.49 7 swims
200 Freestyle SCY 1:58.83 6 swims
500 Freestyle SCY 5:15.56 6 swims
1000 Freestyle SCY 10:40.40 4 swims
1650 Freestyle SCY 18:11.91 1 swim
50 Backstroke SCY 30.79 5 swims
100 Backstroke SCY 1:05.75 9 swims
200 Backstroke SCY 2:22.98 3 swims
100 Breaststroke SCY 1:20.78 1 swim
50 Butterfly SCY 29.79 6 swims
100 Butterfly SCY 1:01.38 10 swims
200 Butterfly SCY 2:14.59 8 swims
200 Individual Medley SCY 2:22.41 2 swims
400 Individual Medley SCY 5:04.98 1 swim
50 Freestyle LCM 30.25 4 swims
100 Freestyle LCM 1:04.33 9 swims
200 Freestyle LCM 2:16.88 11 swims
400 Freestyle LCM 4:42.50 13 swims
800 Freestyle LCM 9:39.80 5 swims
1500 Freestyle LCM 18:39.77 3 swims
50 Backstroke LCM 35.31 6 swims
100 Backstroke LCM 1:15.67 7 swims
200 Backstroke LCM 2:52.20 3 swims
50 Butterfly LCM 33.84 4 swims
100 Butterfly LCM 1:09.59 15 swims
200 Butterfly LCM 2:37.75 9 swims
200 Individual Medley LCM 2:55.63 1 swim
400 Individual Medley LCM 5:51.86 2 swims