Zac Lai

Mage 15COFLIAMTMWNCNMSDCOFLFNPPAUN

433 plausible swims · 61 meets · 2022-11-05 → 2026-07-11

Personal records

Event	Course	Best	Cut	Date	Meet
50 Freestyle	SCY	23.58	AA+0.89s to AAA·+0.39s to Sectionals	2025-12-14	2025 CO FAST Bill Spahn Mid Season Finale venue
100 Freestyle	SCY	50.99	AA+1.20s to AAA·Sectionals ✓+4.60s to Futures	2026-02-22	2026 CO Colorado Senior Meet fast pool
200 Freestyle	SCY	1:52.02	AA+3.33s to AAA·+0.23s to Sectionals	2025-12-14	2025 CO FAST Bill Spahn Mid Season Finale venue
500 Freestyle	SCY	5:34.63	BB+12.04s to A·+31.94s to Sectionals	2025-01-10	2025 CO PPA January Meet venue
1650 Freestyle	SCY	17:21.85	AA+14.36s to AAA·Sectionals ✓+76.36s to Futures	2025-12-04	RAFC Winter Classic venue
50 Backstroke	SCY	27.20	A+0.31s to AA·+3.51s to Futures	2025-12-05	RAFC Winter Classic venue
100 Backstroke	SCY	59.49	A+2.40s to AA·+4.00s to Sectionals	2025-12-04	RAFC Winter Classic
200 Backstroke	SCY	2:17.70	BB+7.61s to A·+16.41s to Sectionals	2025-02-23	2025 CO PPA February Frenzy Last Chance venue
50 Breaststroke	SCY	28.50	AAA+0.41s to AAAA·+2.21s to Futures	2025-12-04	RAFC Winter Classic
100 Breaststroke	SCY	1:00.61	AAA+1.62s to AAAA·Sectionals ✓+2.62s to Futures	2026-02-20	2026 CO Colorado Senior Meet
200 Breaststroke	SCY	2:15.84	AA+1.05s to AAA·Sectionals ✓+7.85s to Futures	2025-12-06	RAFC Winter Classic venue
50 Butterfly	SCY	30.47	B+0.38s to BB·+7.58s to Futures	2024-01-20	2024 CO FAST Winter Open venue
100 Butterfly	SCY	57.36	A+0.97s to AA·+2.17s to Sectionals	2026-01-01	1660388
200 Butterfly	SCY	2:23.45	B+0.46s to BB·+20.06s to Sectionals	2025-01-01	2025 CO Pikes Peak Finals
100 Individual Medley	SCY	1:02.28		2024-10-12	2024 CO PPA Harvest Heats venue
200 Individual Medley	SCY	2:03.60	AA+2.41s to AAA·Sectionals ✓+9.71s to Futures	2025-12-13	2025 CO FAST Bill Spahn Mid Season Finale venue
400 Individual Medley	SCY	4:59.27	BB+15.08s to A·+34.58s to Sectionals	2025-01-11	2025 CO PPA January Meet venue
50 Freestyle	LCM	27.00	AA+0.81s to AAA·+0.01s to Sectionals	2025-06-14	2025 TAC TITANS Triangle Classic venue
100 Freestyle	LCM	58.97	AA+1.88s to AAA·Sectionals ✓+5.38s to Futures	2025-07-19	2025 CO CSI Senior LC State Championships venue
200 Freestyle	LCM	2:19.44	BB+2.25s to A·+10.75s to Sectionals	2025-06-13	2025 TAC TITANS Triangle Classic venue
400 Freestyle	LCM	5:03.86	BB+11.77s to A·+29.47s to Sectionals	2024-05-24	13th Annual Speedo Arizona Invitational venue
800 Freestyle	LCM	11:03.09	B+8.80s to BB·+93.10s to Sectionals	2024-05-27	13th Annual Speedo Arizona Invitational venue
1500 Freestyle	LCM	19:57.51	BB+32.72s to A·+106.42s to Sectionals	2024-07-18	2024 CO CSI Senior LC Championships venue
50 Backstroke	LCM	31.55	AA+1.16s to AAA·+3.66s to Futures	2025-07-18	2025 CO CSI Senior LC State Championships venue
100 Backstroke	LCM	1:13.72	BB+4.13s to A·+8.53s to Sectionals	2025-06-14	2025 TAC TITANS Triangle Classic venue
200 Backstroke	LCM	2:36.21	BB+5.12s to A·+14.72s to Sectionals	2026-07-11	2026 CO SOCO LC Championship & Last Chance venue
50 Breaststroke	LCM	34.38	AA+0.89s to AAA·+3.49s to Futures	2025-07-20	2025 CO CSI Senior LC State Championships venue
100 Breaststroke	LCM	1:13.21	AA+1.42s to AAA·Sectionals ✓+5.02s to Futures	2026-06-13	2026 CO CSI Long Course Open fast pool
200 Breaststroke	LCM	2:45.93	A+1.74s to AA·+5.05s to Sectionals	2026-06-12	2026 CO CSI Long Course Open fast pool
50 Butterfly	LCM	29.70	AA+1.01s to AAA·+3.41s to Futures	2026-07-11	2026 CO SOCO LC Championship & Last Chance venue
100 Butterfly	LCM	1:16.82	B+3.93s to BB·+13.73s to Sectionals	2024-06-22	2024 CO Grand Junction Invitational venue
200 Individual Medley	LCM	2:27.61	A+0.72s to AA·+2.92s to Sectionals	2025-07-20	2025 CO CSI Senior LC State Championships venue
400 Individual Medley	LCM	5:51.68	BB+22.39s to A·+43.89s to Sectionals	2024-05-25	13th Annual Speedo Arizona Invitational venue

Cuts are USA Swimming single-age motivational standards (B → AAAA) at age 15.

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.

Fastest relay legs

Leg	Course	Time	Start	Relay	Date	Meet
100 Freestyle	SCY	56.07	flying	400 Free Relay (leg 3)	2024-02-25	2024 CO CSI SCY Age Group Championships
50 Freestyle	LCM	32.20	flat	200 Free Relay	2023-07-30	2023 CO CSI Age Group LC State Championships
50 Freestyle	LCM	26.89	flying	200 Free Relay (leg 2)	2025-06-13	2025 TAC TITANS Triangle Classic
100 Backstroke	LCM	1:08.17	flat	400 Medley Relay	2025-07-17	2025 CO CSI Senior LC State 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 15-16 · SCY

3643 points (6/6 events)

Event	Time	Points
500 FR SCY	5:34.63	562
200 BK SCY	2:17.70	519
200 BR SCY	2:15.84	784
200 FL SCY	2:23.45	484
200 IM SCY	2:03.60	768
400 IM SCY	4:59.27	526

IMR 15-16 · SCY

3679 points (5/5 events)

Event	Time	Points
200 FR SCY	1:52.02	754
100 BK SCY	59.49	618
100 BR SCY	1:00.61	862
100 FL SCY	57.36	677
200 IM SCY	2:03.60	768

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

PR splits

100 Freestyle SCY 50.99

24.76

26.23

Front half 24.76s · back half 26.23s

200 Freestyle SCY 1:52.02

25.76

28.34

29.20

28.72

Front half 54.10s · back half 57.92s

500 Freestyle SCY 5:34.63

28.68

32.41

34.13

34.35

33.97

34.33

35.02

35.30

33.57

32.87

Front half 163.54s · back half 171.09s

1650 Freestyle SCY 17:21.85

28.37

30.56

31.13

31.17

31.73

31.58

32.20

31.82

31.27

31.95

32.04

31.80

31.84

31.80

31.50

31.47

31.88

31.89

32.08

32.14

31.69

31.79

31.68

31.88

31.94

31.82

31.98

32.09

32.39

32.15

31.80

30.96

29.46

100 Backstroke SCY 59.49 split/total mismatch

33.54

29.07

200 Backstroke SCY 2:17.70

32.18

34.37

35.78

35.37

Front half 66.55s · back half 71.15s

200 Breaststroke SCY 2:15.84

31.15

34.60

35.04

35.05

Front half 65.75s · back half 70.09s

100 Individual Medley SCY 1:02.28

29.34

32.94

Front half 29.34s · back half 32.94s

200 Individual Medley SCY 2:03.60

27.02

33.10

34.46

29.02

Front half 60.12s · back half 63.48s

400 Individual Medley SCY 4:59.27

30.66

36.68

41.20

39.12

40.14

42.68

35.89

32.90

Front half 147.66s · back half 151.61s

100 Freestyle LCM 58.97

28.37

30.60

Front half 28.37s · back half 30.60s

200 Freestyle LCM 2:19.44

32.46

34.86

37.13

34.99

Front half 67.32s · back half 72.12s

400 Freestyle LCM 5:03.86

72.57

79.53

79.84

71.92

Front half 152.10s · back half 151.76s

1500 Freestyle LCM 19:57.51

33.06

37.10

38.71

39.39

39.66

40.08

39.98

40.20

40.25

39.67

40.00

39.98

40.59

40.67

41.15

40.85

39.90

41.63

40.76

41.02

41.20

40.52

41.33

41.80

37.38

44.35

39.12

41.95

37.25

37.96

Front half 590.49s · back half 607.02s

100 Backstroke LCM 1:13.72

36.02

37.70

Front half 36.02s · back half 37.70s

200 Backstroke LCM 2:36.21

37.04

39.86

40.64

38.67

Front half 76.90s · back half 79.31s

100 Breaststroke LCM 1:13.21

33.44

39.77

Front half 33.44s · back half 39.77s

200 Breaststroke LCM 2:45.93

39.16

42.72

42.29

41.76

Front half 81.88s · back half 84.05s

100 Butterfly LCM 1:16.82

35.02

41.80

Front half 35.02s · back half 41.80s

200 Individual Medley LCM 2:27.61

31.78

40.77

42.33

32.73

Front half 72.55s · back half 75.06s

400 Individual Medley LCM 5:51.68

86.67

89.16

98.75

77.10

Front half 175.83s · back half 175.85s

Reaction time

fastest 0.58s average 0.687s slowest 0.84s 6 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 23.58 32 swims

100 Freestyle SCY 50.99 34 swims

200 Freestyle SCY 1:52.02 28 swims

500 Freestyle SCY 5:34.63 6 swims

1650 Freestyle SCY 17:21.85 3 swims

50 Backstroke SCY 27.20 9 swims

100 Backstroke SCY 59.49 18 swims

200 Backstroke SCY 2:17.70 3 swims

50 Breaststroke SCY 28.50 10 swims

100 Breaststroke SCY 1:00.61 37 swims

200 Breaststroke SCY 2:15.84 23 swims

50 Butterfly SCY 30.47 4 swims

100 Butterfly SCY 57.36 9 swims

200 Butterfly SCY 2:23.45 3 swims

100 Individual Medley SCY 1:02.28 8 swims

200 Individual Medley SCY 2:03.60 27 swims

400 Individual Medley SCY 4:59.27 2 swims

50 Freestyle LCM 27.00 27 swims

100 Freestyle LCM 58.97 26 swims

200 Freestyle LCM 2:19.44 11 swims

400 Freestyle LCM 5:03.86 5 swims

800 Freestyle LCM 11:03.09 1 swim

1500 Freestyle LCM 19:57.51 3 swims

50 Backstroke LCM 31.55 10 swims

100 Backstroke LCM 1:13.72 10 swims

200 Backstroke LCM 2:36.21 5 swims

50 Breaststroke LCM 34.38 11 swims

100 Breaststroke LCM 1:13.21 24 swims

200 Breaststroke LCM 2:45.93 12 swims

50 Butterfly LCM 29.70 7 swims

100 Butterfly LCM 1:16.82 4 swims

200 Individual Medley LCM 2:27.61 19 swims

400 Individual Medley LCM 5:51.68 2 swims