Mark Liu

Mage 11ILCPD

38 plausible swims · 8 meets · 2024-07-13 → 2026-03-15

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	28.78	AA+1.19s to AAA	2026-02-28	2026 Winter ISI Regionals- HSC - copied fast pool
100 Freestyle	SCY	1:03.04	A+0.55s to AA	2026-03-15	2026 ISI Winter 11-14 Age Group Championships venue
200 Freestyle	SCY	2:17.47	A+0.58s to AA	2026-03-01	2026 Winter ISI Regionals- HSC - copied fast pool
50 Backstroke	SCY	33.16	AA+1.37s to AAA	2026-02-28	2026 Winter ISI Regionals- HSC - copied fast pool
100 Backstroke	SCY	1:10.37	AA+1.78s to AAA	2026-03-01	2026 Winter ISI Regionals- HSC - copied fast pool
50 Breaststroke	SCY	41.00	BB+1.51s to A	2025-07-20	2025 ISI Summer HPAC Regional venue
100 Breaststroke	SCY	1:26.27	BB+1.28s to A	2025-07-19	2025 ISI Summer HPAC Regional venue
50 Butterfly	SCY	33.96	BB+0.27s to A	2025-07-20	2025 ISI Summer HPAC Regional venue
100 Butterfly	SCY	1:36.31	+5.82s to B	2024-07-13	2024 IL HPAC Summer Regional Championships slow pool
100 Individual Medley	SCY	1:13.86	A+1.77s to AA	2026-03-01	2026 Winter ISI Regionals- HSC - copied fast pool
200 Individual Medley	SCY	2:38.54	A+2.05s to AA	2026-02-28	2026 Winter ISI Regionals- HSC - copied fast pool
50 Backstroke	LCM	42.54	BB+2.25s to A	2024-07-20	2024 IL Swimming LC Age Group Championships venue
100 Backstroke	LCM	1:24.89	A+0.80s to AA	2025-07-25	Illinois Swimming Age Group Champs LC 25 venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 11.

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
50 Freestyle	SCY	36.15	flat	200 Free Relay	2024-07-14	2024 IL HPAC Summer Regional Championships
50 Freestyle	SCY	29.48	flying	200 Free Relay (leg 3)	2025-07-20	2025 ISI Summer HPAC Regional
50 Backstroke	SCY	38.39	flat	200 Medley Relay	2024-07-13	2024 IL HPAC Summer Regional Championships
100 Backstroke	SCY	1:11.82	flat	400 Medley Relay	2026-03-14	2026 ISI Winter 11-14 Age Group Championships
50 Butterfly	SCY	33.10	flying	200 Medley Relay (leg 3)	2025-07-19	2025 ISI Summer HPAC Regional
50 Freestyle	LCM	38.64	flat	200 Free Relay	2024-07-18	2024 IL Swimming LC Age Group 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 11-12 · SCY

1897 points (4/5 events — incomplete)

Event	Time	Points
100 BK SCY	1:10.37	604
100 BR SCY	1:26.27	485
100 FL SCY	1:36.31	230
200 IM SCY	2:38.54	578
500 FR SCY	—	0

IMR 11-12 · SCY

2733 points (5/5 events)

Event	Time	Points
200 FR SCY	2:17.47	616
50 BK SCY	33.16	614
50 BR SCY	41.00	453
50 FL SCY	33.96	485
100 IM SCY	1:13.86	565

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

PR splits

100 Freestyle SCY 1:03.04

30.14

32.90

Front half 30.14s · back half 32.90s

200 Freestyle SCY 2:17.47

31.65

35.30

35.65

34.87

Front half 66.95s · back half 70.52s

100 Backstroke SCY 1:10.37

34.63

35.74

Front half 34.63s · back half 35.74s

100 Breaststroke SCY 1:26.27

42.27

44.00

Front half 42.27s · back half 44.00s

100 Butterfly SCY 1:36.31

43.97

52.34

Front half 43.97s · back half 52.34s

100 Individual Medley SCY 1:13.86

35.21

38.65

Front half 35.21s · back half 38.65s

200 Individual Medley SCY 2:38.54

36.79

41.97

47.32

32.46

Front half 78.76s · back half 79.78s

100 Backstroke LCM 1:24.89 RT 0.79s

41.35

43.54

Front half 41.35s · back half 43.54s

Reaction time

fastest 0.79s average 0.790s slowest 0.79s 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 28.78 2 swims

100 Freestyle SCY 1:03.04 3 swims

200 Freestyle SCY 2:17.47 2 swims

50 Backstroke SCY 33.16 6 swims

100 Backstroke SCY 1:10.37 2 swims

50 Breaststroke SCY 41.00 4 swims

100 Breaststroke SCY 1:26.27 4 swims

50 Butterfly SCY 33.96 4 swims

100 Butterfly SCY 1:36.31 1 swim

100 Individual Medley SCY 1:13.86 6 swims

200 Individual Medley SCY 2:38.54 2 swims

50 Backstroke LCM 42.54 1 swim

100 Backstroke LCM 1:24.89 1 swim