Justin Nienhuis

Mage 17CASTOP

17 plausible swims · 4 meets · 2025-06-13 → 2026-01-24

Personal records

EventCourseBest CutDateMeet
50 Freestyle SCY 24.89 BB+0.80s to A 2025-09-21 2025 CA STOP Back To School Invite venue
100 Freestyle SCY 54.28 BB+1.69s to A 2025-11-08 2025 CA OC November ABC Meet venue
50 Backstroke SCY 29.07 B+0.08s to BB 2025-11-08 2025 CA OC November ABC Meet venue
100 Backstroke SCY 1:02.52 B+0.43s to BB 2025-09-21 2025 CA STOP Back To School Invite venue
200 Backstroke SCY 2:20.07 B+4.38s to BB 2025-11-08 2025 CA OC November ABC Meet venue
50 Butterfly SCY 26.04 A+0.45s to AA 2025-11-08 2025 CA OC November ABC Meet venue
200 Individual Medley SCY 2:17.27 BB+9.08s to A 2025-09-20 2025 CA STOP Back To School Invite venue
400 Individual Medley SCY 4:56.97 BB+20.98s to A 2025-09-21 2025 CA STOP Back To School Invite venue
50 Freestyle LCM 27.49 A+0.80s to AA 2025-06-15 2025 CA SCS RAA June Age Group Championships venue
100 Freestyle LCM 1:01.19 BB+0.60s to A 2025-06-13 2025 CA SCS RAA June Age Group Championships venue
200 Backstroke LCM 2:36.14 BB+9.05s to A 2025-06-14 2025 CA SCS RAA June Age Group Championships venue

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

Fastest relay legs

LegCourseTime StartRelayDateMeet
50 Freestyle LCM 26.80 flying 200 Free Relay (leg 2) 2025-07-24 2025 CA SCS Summer A/G Champs
100 Freestyle LCM 1:00.50 flying 400 Free Relay (leg 2) 2025-07-26 2025 CA SCS Summer A/G Champs
50 Butterfly LCM 29.26 flying 200 Medley Relay (leg 3) 2025-07-24 2025 CA SCS Summer A/G Champs

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

1492 points (3/6 events — incomplete)

EventTime Points
200 BK SCY 2:20.07 456
200 IM SCY 2:17.27 522
400 IM SCY 4:56.97 514
500 FR SCY 0
200 BR SCY 0
200 FL SCY 0

IMR 17-18 · SCY

1000 points (2/5 events — incomplete)

EventTime Points
100 BK SCY 1:02.52 478
200 IM SCY 2:17.27 522
200 FR SCY 0
100 BR SCY 0
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 54.28

25.58
28.70

Front half 25.58s · back half 28.70s

100 Backstroke SCY 1:02.52

30.37
32.15

Front half 30.37s · back half 32.15s

200 Backstroke SCY 2:20.07

31.99
35.23
36.30
36.55

Front half 67.22s · back half 72.85s

200 Individual Medley SCY 2:17.27

28.55
34.76
42.15
31.81

Front half 63.31s · back half 73.96s

400 Individual Medley SCY 4:56.97

29.36
34.02
37.64
38.61
44.80
43.93
34.54
34.07

Front half 139.63s · back half 157.34s

100 Freestyle LCM 1:01.19

28.64
32.55

Front half 28.64s · back half 32.55s

200 Backstroke LCM 2:36.14

34.71
38.17
41.17
42.09

Front half 72.88s · back half 83.26s

Progression

Faster times are higher. One card per event, all courses & history.

50 Freestyle SCY 24.89 1 swim
100 Freestyle SCY 54.28 3 swims
50 Backstroke SCY 29.07 2 swims
100 Backstroke SCY 1:02.52 1 swim
200 Backstroke SCY 2:20.07 2 swims
50 Butterfly SCY 26.04 3 swims
200 Individual Medley SCY 2:17.27 1 swim
400 Individual Medley SCY 4:56.97 1 swim
50 Freestyle LCM 27.49 1 swim
100 Freestyle LCM 1:01.19 1 swim
200 Backstroke LCM 2:36.14 1 swim