Nina Mazereeuw

Fage 17AMCTEZFLMDMRNCNEVACRA

408 plausible swims · 49 meets · 2020-11-27 → 2026-05-15

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	24.61	AAA+0.82s to AAAA·Sectionals ✓+0.72s to Futures	2025-07-31	2025 NE CRA August End of Season Invite
100 Freestyle	SCY	52.47	AAA+0.78s to AAAA·Sectionals ✓+0.58s to Futures	2025-07-31	2025 NE CRA August End of Season Invite
200 Freestyle	SCY	1:53.19	AAA+1.50s to AAAA·Sectionals ✓+0.90s to Futures	2024-08-01	2024 NE CRA August End of Season Invite
500 Freestyle	SCY	5:11.53	AAA+10.24s to AAAA·+2.74s to Sectionals	2025-03-29	2025 EZ North Speedo Short Course Sectionals venue
1000 Freestyle	SCY	10:56.03	AA+3.14s to AAA·+17.04s to Sectionals	2024-12-12	2024 NBAC 50th Annual Christmas Invitational venue
1650 Freestyle	SCY	19:07.66	A+1.07s to AA·+78.27s to Sectionals	2024-09-28	2024 NE CRA Sept Distance & Speccialty venue
50 Backstroke	SCY	29.29	A+0.40s to AA·+3.00s to Futures	2025-07-31	2025 NE CRA August End of Season Invite
100 Backstroke	SCY	1:01.73	A+0.54s to AA·+2.44s to Sectionals	2026-02-06	2026 NE CRA Last Chance February Invitational
200 Backstroke	SCY	2:12.03	AA+5.04s to AAA·+3.14s to Sectionals	2025-02-09	2025 NE CRA Last Chance February Invitational venue
50 Breaststroke	SCY	33.48	AA+1.29s to AAA·+3.69s to Futures	2025-07-31	2025 NE CRA August End of Season Invite
100 Breaststroke	SCY	1:13.23	A+2.94s to AA·+5.04s to Sectionals	2024-08-01	2024 NE CRA August End of Season Invite
200 Breaststroke	SCY	2:36.89	A+3.40s to AA·+7.50s to Sectionals	2024-03-10	2024 NE CRIM 15-19 AG Championships venue
50 Butterfly	SCY	26.71	AAA+0.62s to AAAA·+1.02s to Futures	2025-07-31	2025 NE CRA August End of Season Invite
100 Butterfly	SCY	58.08	AAA+2.49s to AAAA·Sectionals ✓+1.49s to Futures	2025-07-31	2025 NE CRA August End of Season Invite
200 Butterfly	SCY	2:10.33	AA+0.64s to AAA·Sectionals ✓+4.94s to Futures	2026-02-06	2026 NE CRA Last Chance February Invitational
100 Individual Medley	SCY	1:00.34		2025-07-31	2025 NE CRA August End of Season Invite
200 Individual Medley	SCY	2:09.50	AAA+4.91s to AAAA·Sectionals ✓+3.11s to Futures	2026-03-14	2026 NE CRA End of Season March Invite venue
400 Individual Medley	SCY	4:41.52	AA+3.33s to AAA·+3.13s to Sectionals	2025-07-31	2025 NE CRA August End of Season Invite
50 Freestyle	LCM	27.98	AAA+0.89s to AAAA·Sectionals ✓+0.59s to Futures	2024-07-11	2024 NE BGSC LCM Senior Championships venue
100 Freestyle	LCM	59.62	AAA+0.93s to AAAA·Sectionals ✓+0.33s to Futures	2025-06-27	EAC Independence Invitational venue
200 Freestyle	LCM	2:09.91	AAA+2.82s to AAAA·Sectionals ✓+2.12s to Futures	2025-06-29	EAC Independence Invitational venue
400 Freestyle	LCM	4:38.50	AAA+10.21s to AAAA·+0.81s to Sectionals	2025-01-01	2025 NE Swimming LC Senior Championships - Brown University, S#: NE25-0710CS venue
800 Freestyle	LCM	9:41.89	AAA+25.90s to AAAA·+11.90s to Sectionals	2025-06-26	EAC Independence Invitational venue
1500 Freestyle	LCM	19:26.25	A+4.86s to AA·+69.46s to Sectionals	2024-05-31	2024 NE CRA MIT Team Specialty LC Meet venue
50 Backstroke	LCM	33.19	AA+0.70s to AAA·+2.30s to Futures	2025-07-25	2025 TYR FUTURES OCALA venue
100 Backstroke	LCM	1:10.17	AA+1.78s to AAA·+2.28s to Sectionals	2025-06-28	EAC Independence Invitational venue
200 Backstroke	LCM	2:41.87	BB+0.18s to A·+15.68s to Sectionals	2023-05-12	2023 NE CRA & USC May LC Specialty Meet
100 Breaststroke	LCM	1:25.96	BB+1.77s to A·+8.07s to Sectionals	2024-07-14	2024 NE BGSC LCM Senior Championships venue
200 Breaststroke	LCM	3:09.75	BB+7.16s to A·+20.36s to Sectionals	2024-06-01	2024 NE CRA MIT Team Specialty LC Meet venue
50 Butterfly	LCM	29.66	AAA+0.47s to AAAA·+0.17s to Futures	2025-07-10	2025 NE CS LCM Senior Championships venue
100 Butterfly	LCM	1:06.24	AAA+2.95s to AAAA·Sectionals ✓+1.55s to Futures	2025-06-27	EAC Independence Invitational venue
200 Butterfly	LCM	2:38.95	A+5.76s to AA·+9.86s to Sectionals	2025-05-11	2025 NE CRA & USC May LC Specialty Meet venue
200 Individual Medley	LCM	2:31.43	AA+1.54s to AAA·+3.04s to Sectionals	2025-06-29	EAC Independence Invitational venue
400 Individual Medley	LCM	5:36.32	A+3.73s to AA·+15.83s to Sectionals	2024-06-01	2024 NE CRA MIT Team Specialty LC Meet venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 17.

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.

Fastest relay legs

Leg	Course	Time	Start	Relay	Date	Meet
50 Freestyle	SCY	24.63	flying	200 Medley Relay (leg 4)	2024-03-23	2024 EZ North Region Speedo Sectional Champs
50 Freestyle	SCY	24.80	flying	200 Free Relay (leg 2)	2024-03-24	2024 EZ SC Speedo Champ Series - VA
100 Freestyle	SCY	53.80	flying	400 Medley Relay (leg 4)	2024-03-24	2024 EZ SC Speedo Champ Series - VA
100 Freestyle	SCY	53.42	flying	400 Free Relay (leg 2)	2024-03-23	2024 EZ SC Speedo Champ Series - VA
200 Freestyle	SCY	1:56.91	flat	800 Free Relay	2024-03-22	2024 EZ SC Speedo Champ Series - VA
50 Freestyle	LCM	27.54	flying	200 Medley Relay (leg 4)	2025-07-23	2025 TYR FUTURES OCALA
50 Freestyle	LCM	27.37	flying	200 Free Relay (leg 2)	2025-07-23	2025 TYR FUTURES OCALA
100 Freestyle	LCM	59.68	flat	400 Free Relay	2024-07-14	2024 NE BGSC LCM Senior Championships
100 Freestyle	LCM	59.69	flying	400 Medley Relay (leg 4)	2025-07-26	2025 TYR FUTURES OCALA
100 Freestyle	LCM	59.70	flying	400 Free Relay (leg 2)	2025-07-25	2025 TYR FUTURES OCALA
200 Freestyle	LCM	2:13.83	flat	800 Free Relay	2024-07-12	2024 NE BGSC LCM Senior 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 17-18 · SCY

4776 points (6/6 events)

Event	Time	Points
500 FR SCY	5:11.53	869
200 BK SCY	2:12.03	733
200 BR SCY	2:36.89	687
200 FL SCY	2:10.33	822
200 IM SCY	2:09.50	850
400 IM SCY	4:41.52	815

IMR 17-18 · SCY

3995 points (5/5 events)

Event	Time	Points
200 FR SCY	1:53.19	927
100 BK SCY	1:01.73	706
100 BR SCY	1:13.23	654
100 FL SCY	58.08	858
200 IM SCY	2:09.50	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 52.47 split/total mismatch

25.32

1.83

Front half 25.32s · back half 27.15s

200 Freestyle SCY 1:53.19 split/total mismatch

26.10

2.11

0.87

0.72

Front half 28.21s · back half 84.98s

500 Freestyle SCY 5:11.53

28.19

31.70

31.31

31.39

31.63

32.10

32.15

31.41

31.21

30.44

Front half 154.22s · back half 157.31s

1000 Freestyle SCY 10:56.03

29.19

31.13

31.44

32.49

32.88

33.01

33.09

32.87

33.15

33.84

33.59

33.69

33.72

33.21

33.14

33.38

33.23

33.49

33.37

32.12

Front half 323.09s · back half 332.94s

1650 Freestyle SCY 19:07.66

30.20

33.88

34.63

34.62

34.67

34.41

34.37

34.96

34.62

34.53

35.28

35.01

34.63

34.80

35.54

34.70

34.90

34.60

34.91

35.49

35.03

35.57

35.60

35.44

35.40

35.47

36.08

35.34

35.32

35.56

34.96

34.22

32.92

100 Backstroke SCY 1:01.73 split/total mismatch

29.66

2.41

Front half 29.66s · back half 32.07s

200 Backstroke SCY 2:12.03

31.75

33.96

66.32

100 Breaststroke SCY 1:13.23 split/total mismatch

34.58

4.07

Front half 34.58s · back half 38.65s

200 Breaststroke SCY 2:36.89

35.58

40.07

40.71

40.53

Front half 75.65s · back half 81.24s

100 Butterfly SCY 58.08 split/total mismatch

27.38

3.32

Front half 27.38s · back half 30.70s

200 Butterfly SCY 2:10.33 split/total mismatch

29.63

33.58

33.34

33.78

100 Individual Medley SCY 1:00.34 split/total mismatch

27.65

5.04

Front half 27.65s · back half 32.69s

200 Individual Medley SCY 2:09.50

27.39

32.35

40.13

29.63

Front half 59.74s · back half 69.76s

400 Individual Medley SCY 4:41.52 split/total mismatch

28.36

32.53

36.30

35.15

42.76

43.31

32.42

30.69

100 Freestyle LCM 59.62

28.53

31.09

Front half 28.53s · back half 31.09s

200 Freestyle LCM 2:09.91

30.99

33.14

33.41

32.37

Front half 64.13s · back half 65.78s

400 Freestyle LCM 4:38.50 split/total mismatch

32.58

35.58

35.80

35.28

36.00

35.75

34.21

33.30

800 Freestyle LCM 9:41.89

32.40

35.55

36.11

36.27

35.97

37.01

36.72

37.35

36.71

37.50

37.60

36.91

37.04

37.25

34.59

Front half 287.38s · back half 294.51s

1500 Freestyle LCM 19:26.25

71.29

76.24

77.31

78.12

78.57

78.24

78.02

78.69

79.21

78.39

78.12

79.10

79.13

78.60

77.22

100 Backstroke LCM 1:10.17

33.97

36.20

Front half 33.97s · back half 36.20s

200 Backstroke LCM 2:41.87 split/total mismatch

39.39

40.27

41.80

40.41

100 Breaststroke LCM 1:25.96

40.25

45.71

Front half 40.25s · back half 45.71s

200 Breaststroke LCM 3:09.75

91.52

98.23

Front half 91.52s · back half 98.23s

100 Butterfly LCM 1:06.24

31.15

35.09

Front half 31.15s · back half 35.09s

200 Butterfly LCM 2:38.95

34.94

39.92

42.56

41.53

Front half 74.86s · back half 84.09s

200 Individual Medley LCM 2:31.43

31.47

39.22

46.95

33.79

Front half 70.69s · back half 80.74s

400 Individual Medley LCM 5:36.32

73.88

85.38

102.28

74.78

Front half 159.26s · back half 177.06s

Reaction time

fastest 0.60s average 0.693s slowest 0.76s 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 24.61 35 swims

100 Freestyle SCY 52.47 49 swims

200 Freestyle SCY 1:53.19 39 swims

500 Freestyle SCY 5:11.53 21 swims

1000 Freestyle SCY 10:56.03 6 swims

1650 Freestyle SCY 19:07.66 1 swim

50 Backstroke SCY 29.29 8 swims

100 Backstroke SCY 1:01.73 15 swims

200 Backstroke SCY 2:12.03 6 swims

50 Breaststroke SCY 33.48 4 swims

100 Breaststroke SCY 1:13.23 18 swims

200 Breaststroke SCY 2:36.89 7 swims

50 Butterfly SCY 26.71 11 swims

100 Butterfly SCY 58.08 35 swims

200 Butterfly SCY 2:10.33 12 swims

100 Individual Medley SCY 1:00.34 8 swims

200 Individual Medley SCY 2:09.50 36 swims

400 Individual Medley SCY 4:41.52 9 swims

50 Freestyle LCM 27.98 9 swims

100 Freestyle LCM 59.62 13 swims

200 Freestyle LCM 2:09.91 11 swims

400 Freestyle LCM 4:38.50 10 swims

800 Freestyle LCM 9:41.89 3 swims

1500 Freestyle LCM 19:26.25 1 swim

50 Backstroke LCM 33.19 1 swim

100 Backstroke LCM 1:10.17 6 swims

200 Backstroke LCM 2:41.87 2 swims

100 Breaststroke LCM 1:25.96 5 swims

200 Breaststroke LCM 3:09.75 1 swim

50 Butterfly LCM 29.66 4 swims

100 Butterfly LCM 1:06.24 9 swims

200 Butterfly LCM 2:38.95 2 swims

200 Individual Medley LCM 2:31.43 10 swims

400 Individual Medley LCM 5:36.32 1 swim