Jiho Chang

Mage 14IEPNIST

328 plausible swims · 49 meets · 2024-01-01 → 2026-06-20

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	25.72	BB+0.13s to A·+2.53s to Sectionals	2026-03-28	2026 PN Spring Showdown, Division 1 - copied
100 Freestyle	SCY	57.80	BB+2.01s to A·+6.81s to Sectionals	2025-11-15	2025 PN IST November Invitational venue
200 Freestyle	SCY	2:08.14	BB+5.95s to A·+16.35s to Sectionals	2026-02-08	2026 PN IST Feb Winter Invitational-Approved venue
500 Freestyle	SCY	4:58.39	AAA+8.90s to AAAA·Sectionals ✓+21.30s to Futures	2026-01-24	2026 PN IST January Invitational
1000 Freestyle	SCY	12:41.68	B+17.39s to BB·+127.69s to Sectionals	2025-02-22	2025 PN IST Feb Invitational venue
50 Backstroke	SCY	28.47	A+0.78s to AA·+4.78s to Futures	2026-03-01	2026 PN February AGI, Div 1-Approved fast pool
100 Backstroke	SCY	1:03.71	BB+2.52s to A·+8.22s to Sectionals	2026-01-24	2026 PN IST January Invitational
200 Backstroke	SCY	2:14.52	BB+1.53s to A·+13.23s to Sectionals	2026-02-07	2026 PN IST Feb Winter Invitational-Approved venue
50 Breaststroke	SCY	30.44	AA+0.15s to AAA·+4.15s to Futures	2026-03-28	2026 PN Spring Showdown, Div.1 Approved
100 Breaststroke	SCY	1:10.27	BB+1.18s to A·+7.08s to Sectionals	2026-03-28	2026 PN Spring Showdown, Division 1 - copied
200 Breaststroke	SCY	2:35.05	BB+4.76s to A·+17.76s to Sectionals	2026-03-28	2026 PN Spring Showdown, Div.1 Approved venue
50 Butterfly	SCY	27.48	A+0.19s to AA·+4.59s to Futures	2025-12-13	2025 PN 14&Under Short Course Champs-Approved venue
100 Butterfly	SCY	55.16	AAA+2.27s to AAAA·Sectionals ✓+4.57s to Futures	2025-12-12	2025 PN 14&Under Short Course Champs-Approved
200 Butterfly	SCY	2:20.59	BB+6.10s to A·+17.20s to Sectionals	2025-11-24	2025 PN November AGI, Div 3 (UPAC)
100 Individual Medley	SCY	1:05.17		2026-02-27	2026 PN February AGI, Div 1-Approved
200 Individual Medley	SCY	2:17.30	BB+1.91s to A·+13.31s to Sectionals	2026-03-28	2026 PN Spring Showdown, Div.1 Approved venue
400 Individual Medley	SCY	4:54.89	BB+5.40s to A·+30.20s to Sectionals	2025-12-12	2025 PN 14&Under Short Course Champs-Approved venue
50 Freestyle	LCM	28.54	A+0.35s to AA·+1.55s to Sectionals	2026-06-20	2026 PN CSC 105th Annual Seattle Open- Approv venue
100 Freestyle	LCM	1:05.21	BB+0.82s to A·+6.22s to Sectionals	2026-06-13	2026 PN IST June Invtational- Approved venue
200 Freestyle	LCM	2:23.44	BB+2.85s to A·+14.75s to Sectionals	2026-06-14	2026 PN IST June Invtational- Approved venue
400 Freestyle	LCM	5:10.57	BB+10.68s to A·+36.18s to Sectionals	2026-06-13	2026 PN IST June Invtational- Approved venue
50 Backstroke	LCM	33.03	A+0.54s to AA·+5.14s to Futures	2026-05-03	2026 PN BC May Flowers - Approved venue
100 Backstroke	LCM	1:12.96	BB+1.27s to A·+7.77s to Sectionals	2026-06-14	2026 PN IST June Invtational- Approved venue
200 Backstroke	LCM	2:36.07	BB+0.08s to A·+14.58s to Sectionals	2026-05-17	2026 PN IST Sockeye Springtime Madness App. venue
50 Breaststroke	LCM	35.77	AA+1.08s to AAA·+4.88s to Futures	2026-06-14	2026 PN IST June Invtational- Approved venue
100 Breaststroke	LCM	1:23.99	BB+3.40s to A·+10.29s to Sectionals	2026-05-03	2026 PN BC May Flowers - Approved venue
200 Breaststroke	LCM	3:03.28	BB+8.49s to A·+22.40s to Sectionals	2026-05-02	2026 PN BC May Flowers - Approved venue
50 Butterfly	LCM	30.74	A+0.15s to AA·+4.45s to Futures	2026-05-17	2026 PN IST Sockeye Springtime Madness App. venue
100 Butterfly	LCM	1:12.37	BB+3.48s to A·+9.28s to Sectionals	2026-05-16	2026 PN IST Sockeye Springtime Madness App. venue
200 Butterfly	LCM	2:52.40	B+5.21s to BB·+31.31s to Sectionals	2026-05-03	2026 PN BC May Flowers - Approved venue
200 Individual Medley	LCM	2:37.74	BB+0.85s to A·+13.05s to Sectionals	2026-06-13	2026 PN IST June Invtational- Approved venue
400 Individual Medley	LCM	5:38.15	BB+2.66s to A·+30.36s to Sectionals	2026-05-15	2026 PN IST Sockeye Springtime Madness App. venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 14.

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.

IMX / IMR

IMX 13-14 · SCY

4017 points (6/6 events)

Event	Time	Points
500 FR SCY	4:58.39	911
200 BK SCY	2:14.52	641
200 BR SCY	2:35.05	605
200 FL SCY	2:20.59	585
200 IM SCY	2:17.30	642
400 IM SCY	4:54.89	633

IMR 13-14 · SCY

3328 points (5/5 events)

Event	Time	Points
200 FR SCY	2:08.14	580
100 BK SCY	1:03.71	591
100 BR SCY	1:10.27	634
100 FL SCY	55.16	881
200 IM SCY	2:17.30	642

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

PR splits

100 Freestyle SCY 57.80

27.13

30.67

Front half 27.13s · back half 30.67s

200 Freestyle SCY 2:08.14 RT 0.61s

28.15

32.23

33.79

33.97

Front half 60.38s · back half 67.76s

1000 Freestyle SCY 12:41.68

32.54

37.05

38.22

39.17

35.61

37.57

39.24

39.46

38.88

39.30

38.30

39.21

38.29

39.11

39.13

39.00

38.37

38.36

39.06

35.81

Front half 377.04s · back half 384.64s

100 Backstroke SCY 1:03.71 split/total mismatch

31.00

1.71

Front half 31.00s · back half 32.71s

200 Backstroke SCY 2:14.52 RT 0.70s

30.46

34.36

35.42

34.28

Front half 64.82s · back half 69.70s

200 Breaststroke SCY 2:35.05

35.54

40.58

39.62

39.31

Front half 76.12s · back half 78.93s

100 Individual Medley SCY 1:05.17

30.94

68.63

110.28

150.62

30.95

65.17

200 Individual Medley SCY 2:17.30

28.26

35.09

40.73

33.22

Front half 63.35s · back half 73.95s

400 Individual Medley SCY 4:54.89 RT 0.60s

29.52

35.99

37.41

35.67

42.37

44.02

35.24

34.67

Front half 138.59s · back half 156.30s

200 Freestyle LCM 2:23.44 RT 0.61s

68.55

74.89

Front half 68.55s · back half 74.89s

400 Freestyle LCM 5:10.57 RT 0.61s

73.47

80.30

79.30

77.50

Front half 153.77s · back half 156.80s

200 Backstroke LCM 2:36.07 RT 0.71s· 12.7 min after 100 Freestyle

76.53

79.54

Front half 76.53s · back half 79.54s

200 Breaststroke LCM 3:03.28 RT 0.62s

88.18

95.10

Front half 88.18s · back half 95.10s

200 Butterfly LCM 2:52.40 RT 0.64s

80.42

91.98

Front half 80.42s · back half 91.98s

200 Individual Medley LCM 2:37.74 RT 0.64s

75.23

82.51

Front half 75.23s · back half 82.51s

400 Individual Medley LCM 5:38.15 RT 0.54s

34.07

41.96

44.44

42.57

48.42

49.36

39.72

37.61

Front half 163.04s · back half 175.11s

Reaction time

fastest 0.40s average 0.632s slowest 0.92s 64 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 25.72 15 swims

100 Freestyle SCY 57.80 16 swims

200 Freestyle SCY 2:08.14 4 swims

500 Freestyle SCY 4:58.39 6 swims

1000 Freestyle SCY 12:41.68 2 swims

50 Backstroke SCY 28.47 16 swims

100 Backstroke SCY 1:03.71 24 swims

200 Backstroke SCY 2:14.52 17 swims

50 Breaststroke SCY 30.44 14 swims

100 Breaststroke SCY 1:10.27 15 swims

200 Breaststroke SCY 2:35.05 11 swims

50 Butterfly SCY 27.48 15 swims

100 Butterfly SCY 55.16 19 swims

200 Butterfly SCY 2:20.59 8 swims

100 Individual Medley SCY 1:05.17 9 swims

200 Individual Medley SCY 2:17.30 12 swims

400 Individual Medley SCY 4:54.89 8 swims

50 Freestyle LCM 28.54 10 swims

100 Freestyle LCM 1:05.21 12 swims

200 Freestyle LCM 2:23.44 7 swims

400 Freestyle LCM 5:10.57 3 swims

50 Backstroke LCM 33.03 11 swims

100 Backstroke LCM 1:12.96 15 swims

200 Backstroke LCM 2:36.07 7 swims

50 Breaststroke LCM 35.77 10 swims

100 Breaststroke LCM 1:23.99 6 swims

200 Breaststroke LCM 3:03.28 4 swims

50 Butterfly LCM 30.74 10 swims

100 Butterfly LCM 1:12.37 10 swims

200 Butterfly LCM 2:52.40 3 swims

200 Individual Medley LCM 2:37.74 7 swims

400 Individual Medley LCM 5:38.15 2 swims