Henry Guo

Mage 18CZILLEMTMWSEWIHSCIL

89 plausible swims · 10 meets · 2018-08-02 → 2025-08-03

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	20.63	AAAA	2025-03-08	2025 SC Illinois Senior Championships venue
200 Butterfly	SCY	1:45.04	AAAA	2025-03-06	2025 SC Illinois Senior Championships
200 Individual Medley	SCY	1:47.52	AAAA	2025-03-08	2025 SC Illinois Senior Championships venue
50 Freestyle	LCM	24.11	AAA+0.12s to AAAA	2025-06-20	2025 SE Richard Quick Invitational
100 Freestyle	LCM	51.47	AAAA	2025-06-20	2025 SE Richard Quick Invitational
200 Freestyle	LCM	1:53.02	AAAA	2025-06-20	2025 SE Richard Quick Invitational venue
100 Backstroke	LCM	58.06	AAAA	2024-07-12	2024 CZ North Section Summer Sectionals venue
200 Backstroke	LCM	2:12.02	AAA+4.33s to AAAA	2024-05-19	2024 MAC LC Midwest Invitational venue
50 Butterfly	LCM	25.01	AAAA	2025-08-02	2025 Speedo Junior National Championships fast pool
100 Butterfly	LCM	54.41	AAAA	2025-08-01	2025 Speedo Junior National Championships fast pool
200 Butterfly	LCM	2:02.35	AAAA	2025-07-30	2025 Speedo Junior National Championships fast pool
200 Individual Medley	LCM	2:07.77	AAAA	2025-08-03	2025 Speedo Junior National Championships fast pool
400 Individual Medley	LCM	4:41.46	AAA+3.17s to AAAA	2024-05-17	2024 MAC LC Midwest Invitational venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 18.

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 17-18 · LCM

3927 points (4/6 events — incomplete)

Event	Time	Points
200 BK LCM	2:12.02	887
200 FL LCM	2:02.35	1073
200 IM LCM	2:07.77	1028
400 IM LCM	4:41.46	939
400 FR LCM	—	0
200 BR LCM	—	0

IMR 17-18 · LCM

4167 points (4/5 events — incomplete)

Event	Time	Points
200 FR LCM	1:53.02	1044
100 BK LCM	58.06	1006
100 FL LCM	54.41	1089
200 IM LCM	2:07.77	1028
100 BR LCM	—	0

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

PR splits

200 Individual Medley SCY 1:47.52

22.72

26.83

32.04

25.93

Front half 49.55s · back half 57.97s

200 Freestyle LCM 1:53.02

54.16

58.86

Front half 54.16s · back half 58.86s

100 Backstroke LCM 58.06 RT 0.60s

27.99

30.07

Front half 27.99s · back half 30.07s

200 Backstroke LCM 2:12.02

30.22

33.13

34.47

34.20

Front half 63.35s · back half 68.67s

100 Butterfly LCM 54.41 RT 0.63s

25.56

28.85

Front half 25.56s · back half 28.85s

200 Butterfly LCM 2:02.35 RT 0.65s

26.64

30.68

31.97

33.06

Front half 57.32s · back half 65.03s

200 Individual Medley LCM 2:07.77 RT 0.64s

26.43

32.81

38.96

29.57

Front half 59.24s · back half 68.53s

400 Individual Medley LCM 4:41.46

28.22

32.88

37.79

35.51

39.80

41.41

33.21

32.64

Front half 134.40s · back half 147.06s

Reaction time

fastest 0.60s average 0.640s slowest 0.68s 28 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 20.63 2 swims

200 Butterfly SCY 1:45.04 3 swims

200 Individual Medley SCY 1:47.52 3 swims

50 Freestyle LCM 24.11 7 swims

100 Freestyle LCM 51.47 5 swims

200 Freestyle LCM 1:53.02 4 swims

100 Backstroke LCM 58.06 12 swims

200 Backstroke LCM 2:12.02 5 swims

50 Butterfly LCM 25.01 5 swims

100 Butterfly LCM 54.41 17 swims

200 Butterfly LCM 2:02.35 15 swims

200 Individual Medley LCM 2:07.77 9 swims

400 Individual Medley LCM 4:41.46 2 swims