Nathan Guinan

Mage 15EZMDVANBACYCM

393 plausible swims · 40 meets · 2021-03-27 → 2026-03-29

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	23.50	AA+0.81s to AAA	2025-11-15	2025 NBAC Thanksgiving Meet fast pool
100 Freestyle	SCY	49.70	AAA+2.21s to AAAA	2025-12-14	2025 NBAC 51st Annual Christmas Invitational venue
200 Freestyle	SCY	1:52.45	AA+3.76s to AAA	2025-12-12	2025 NBAC 51st Annual Christmas Invitational venue
500 Freestyle	SCY	5:21.92	A+12.83s to AA	2025-10-17	2025 NBAC Fall Fastival Meet fast pool
1000 Freestyle	SCY	10:49.18	A+5.39s to AA	2025-12-11	2025 NBAC 51st Annual Christmas Invitational venue
1650 Freestyle	SCY	18:05.22	A+11.03s to AA	2025-11-15	2025 NBAC Thanksgiving Meet fast pool
50 Backstroke	SCY	26.97	A+0.08s to AA	2026-01-18	ISCA January Classic 2026 venue
100 Backstroke	SCY	58.75	A+1.66s to AA	2025-12-13	2025 NBAC 51st Annual Christmas Invitational venue
200 Backstroke	SCY	2:07.64	A+2.95s to AA	2025-12-14	2025 NBAC 51st Annual Christmas Invitational venue
50 Breaststroke	SCY	28.43	AAA+0.34s to AAAA	2026-02-22	2026 Speedo MD LSC Senior Champs venue
100 Breaststroke	SCY	1:01.95	AA+0.16s to AAA	2026-01-16	ISCA January Classic 2026 venue
200 Breaststroke	SCY	2:14.56	AAA+5.97s to AAAA	2025-03-08	2025 MD LSC 14 & U Championships venue
50 Butterfly	SCY	25.11	AAA+0.82s to AAAA	2026-01-18	ISCA January Classic 2026 venue
100 Butterfly	SCY	56.01	AA+2.02s to AAA	2026-01-16	ISCA January Classic 2026 venue
200 Butterfly	SCY	2:13.99	BB+2.00s to A	2024-10-20	2024 NBAC Fall Fastival Meet fast pool
100 Individual Medley	SCY	56.23		2026-02-19	2026 Speedo MD LSC Senior Champs venue
200 Individual Medley	SCY	2:02.35	AA+1.16s to AAA	2025-03-08	2025 MD LSC 14 & U Championships venue
400 Individual Medley	SCY	4:27.49	AA+7.00s to AAA	2025-11-14	2025 NBAC Thanksgiving Meet fast pool
50 Freestyle	LCM	27.09	AA+0.90s to AAA	2025-04-27	2025 NAAC Carol Chidester Invite venue
100 Freestyle	LCM	58.25	AA+1.16s to AAA	2025-07-30	2025 MD LSC LC Championships venue
200 Freestyle	LCM	2:09.46	AA+3.67s to AAA	2025-07-31	2025 MD LSC LC Championships venue
400 Freestyle	LCM	4:39.84	AA+12.05s to AAA	2025-07-12	2025 NBAC Mid Summer Classic venue
50 Backstroke	LCM	31.76	AA+1.37s to AAA	2025-05-16	2025 NBAC Spring LC Invitational Meet venue
100 Backstroke	LCM	1:11.58	BB+1.99s to A	2025-04-27	2025 NAAC Carol Chidester Invite venue
200 Backstroke	LCM	2:33.39	BB+2.30s to A	2025-07-13	2025 NBAC Mid Summer Classic venue
50 Breaststroke	LCM	32.76	AAA+0.77s to AAAA	2026-03-29	2026 Speedo Sectional Championship venue
100 Breaststroke	LCM	1:12.50	AA+0.71s to AAA	2025-07-30	2025 MD LSC LC Championships venue
200 Breaststroke	LCM	2:40.20	AA+3.11s to AAA	2025-08-01	2025 MD LSC LC Championships venue
50 Butterfly	LCM	28.70	AA+0.01s to AAA	2025-07-31	2025 MD LSC LC Championships venue
100 Butterfly	LCM	1:05.02	A+0.53s to AA	2025-07-11	2025 NBAC Mid Summer Classic venue
200 Butterfly	LCM	2:36.51	BB+5.92s to A	2025-07-12	2025 NBAC Mid Summer Classic venue
200 Individual Medley	LCM	2:22.82	AA+2.33s to AAA	2025-07-12	2025 NBAC Mid Summer Classic venue
400 Individual Medley	LCM	5:14.00	AA+12.11s to AAA	2025-05-17	2025 NBAC Spring LC Invitational Meet 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 Freestyle	LCM	2:02.03	flying	400 Free Relay (leg 4)	2023-08-03	2023 Speedo Maryland Long Course Championship
100 Breaststroke	LCM	1:17.58	flying	400 Medley Relay (leg 2)	2023-08-04	2023 Speedo Maryland Long Course Championship

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

4212 points (6/6 events)

Event	Time	Points
500 FR SCY	5:21.92	632
200 BK SCY	2:07.64	652
200 BR SCY	2:14.56	807
200 FL SCY	2:13.99	594
200 IM SCY	2:02.35	791
400 IM SCY	4:27.49	736

IMR 15-16 · SCY

3714 points (5/5 events)

Event	Time	Points
200 FR SCY	1:52.45	746
100 BK SCY	58.75	642
100 BR SCY	1:01.95	807
100 FL SCY	56.01	728
200 IM SCY	2:02.35	791

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

PR splits

100 Freestyle SCY 49.70

23.98

25.72

Front half 23.98s · back half 25.72s

200 Freestyle SCY 1:52.45

25.98

28.60

29.04

28.83

Front half 54.58s · back half 57.87s

500 Freestyle SCY 5:21.92

26.90

30.16

31.42

31.85

32.76

33.13

33.84

34.22

34.16

33.48

Front half 153.09s · back half 168.83s

1000 Freestyle SCY 10:49.18

28.09

31.04

31.65

31.84

31.99

31.78

32.12

31.96

31.66

32.42

32.69

33.04

33.74

33.62

33.38

33.26

33.95

33.94

33.27

Front half 314.55s · back half 334.63s

1650 Freestyle SCY 18:05.22

29.56

32.58

32.86

33.17

32.79

32.78

32.80

32.98

32.76

33.03

32.92

33.22

33.16

33.18

33.06

32.97

33.14

33.19

33.00

32.69

33.30

33.11

33.10

33.19

33.25

33.45

33.36

33.41

33.11

32.83

32.68

31.83

100 Backstroke SCY 58.75

28.16

30.59

Front half 28.16s · back half 30.59s

200 Backstroke SCY 2:07.64

29.73

32.31

33.71

31.89

Front half 62.04s · back half 65.60s

100 Breaststroke SCY 1:01.95

28.98

32.97

Front half 28.98s · back half 32.97s

200 Breaststroke SCY 2:14.56

29.99

33.43

34.87

36.27

Front half 63.42s · back half 71.14s

100 Butterfly SCY 56.01

26.21

29.80

Front half 26.21s · back half 29.80s

200 Butterfly SCY 2:13.99

28.09

32.73

35.37

37.80

Front half 60.82s · back half 73.17s

100 Individual Medley SCY 56.23

25.87

30.36

Front half 25.87s · back half 30.36s

200 Individual Medley SCY 2:02.35

26.68

30.78

35.48

29.41

Front half 57.46s · back half 64.89s

400 Individual Medley SCY 4:27.49

28.35

32.23

34.35

34.62

37.05

38.20

31.44

31.25

Front half 129.55s · back half 137.94s

100 Freestyle LCM 58.25

28.25

30.00

Front half 28.25s · back half 30.00s

200 Freestyle LCM 2:09.46

30.10

33.28

33.76

32.32

Front half 63.38s · back half 66.08s

400 Freestyle LCM 4:39.84

30.72

34.50

35.58

36.12

36.03

36.27

36.25

34.37

Front half 136.92s · back half 142.92s

100 Backstroke LCM 1:11.58

34.46

37.12

Front half 34.46s · back half 37.12s

200 Backstroke LCM 2:33.39

35.22

38.72

40.14

39.31

Front half 73.94s · back half 79.45s

100 Breaststroke LCM 1:12.50

34.72

37.78

Front half 34.72s · back half 37.78s

200 Breaststroke LCM 2:40.20

35.67

40.14

41.63

42.76

Front half 75.81s · back half 84.39s

100 Butterfly LCM 1:05.02

30.26

34.76

Front half 30.26s · back half 34.76s

200 Butterfly LCM 2:36.51

31.76

38.15

42.10

44.50

Front half 69.91s · back half 86.60s

200 Individual Medley LCM 2:22.82

30.52

36.68

42.82

32.80

Front half 67.20s · back half 75.62s

400 Individual Medley LCM 5:14.00

32.36

37.45

41.51

40.59

45.95

44.34

36.79

35.01

Front half 151.91s · back half 162.09s

Reaction time

fastest 0.69s average 0.690s slowest 0.69s 1 electronic start

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 23.50 16 swims

100 Freestyle SCY 49.70 14 swims

200 Freestyle SCY 1:52.45 10 swims

500 Freestyle SCY 5:21.92 5 swims

1000 Freestyle SCY 10:49.18 1 swim

1650 Freestyle SCY 18:05.22 2 swims

50 Backstroke SCY 26.97 13 swims

100 Backstroke SCY 58.75 9 swims

200 Backstroke SCY 2:07.64 5 swims

50 Breaststroke SCY 28.43 25 swims

100 Breaststroke SCY 1:01.95 25 swims

200 Breaststroke SCY 2:14.56 18 swims

50 Butterfly SCY 25.11 17 swims

100 Butterfly SCY 56.01 17 swims

200 Butterfly SCY 2:13.99 6 swims

100 Individual Medley SCY 56.23 17 swims

200 Individual Medley SCY 2:02.35 22 swims

400 Individual Medley SCY 4:27.49 6 swims

50 Freestyle LCM 27.09 9 swims

100 Freestyle LCM 58.25 18 swims

200 Freestyle LCM 2:09.46 10 swims

400 Freestyle LCM 4:39.84 6 swims

50 Backstroke LCM 31.76 5 swims

100 Backstroke LCM 1:11.58 6 swims

200 Backstroke LCM 2:33.39 5 swims

50 Breaststroke LCM 32.76 15 swims

100 Breaststroke LCM 1:12.50 18 swims

200 Breaststroke LCM 2:40.20 16 swims

50 Butterfly LCM 28.70 11 swims

100 Butterfly LCM 1:05.02 12 swims

200 Butterfly LCM 2:36.51 3 swims

200 Individual Medley LCM 2:22.82 22 swims

400 Individual Medley LCM 5:14.00 6 swims