David Mai

San Jose, CA

Bib: 18908 M 52

Masters

0:00

0:00

/ mi

Masters

Be the first to cheer!

Overall

#0 / 61036

Gender (Male)

#0 / 31978

Masters (Masters Men)

#0 / 14572

Division (M50-54)

#0 / 2905

Race Day Weather

50°/40°F

clear sky

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Mile 1 · 259 ft

Mile 2 · 64 ft

Start

0:00

Race begins

118 ft elev

9:58/mi

29:55

↑ 182 ft↓ 221 ft0.2% grade

79 ft elev

5K· 3.11 mi

10:18/mi

31:01

→ flat

76 ft elev

9:56/mi

39:53

↑ 23 ft↓ 16 ft0.1% grade

84 ft elev

9:52/mi

49:45

↑ 13 ft↓ 30 ft0.3% grade

70 ft elev

9:53/mi

59:38

↑ 16 ft↓ 36 ft0.4% grade

47 ft elev

10K· 6.21 mi

10:08/mi

1:01:48

→ flat0.6% grade

58 ft elev

9:35/mi

1:09:20

↓ 30 ft0.6% grade

33 ft elev

10:17/mi

1:19:37

↑ 30 ft0.4% grade

54 ft elev

10:19/mi

1:29:56

↑ 61 ft↓ 33 ft0.5% grade

81 ft elev

15K· 9.32 mi

9:49/mi

1:33:05

↓ 13 ft0.8% grade

66 ft elev

10M

10:05/mi

1:39:56

↓ 36 ft0.9% grade

33 ft elev

11M

10:41/mi

1:50:37

↑ 43 ft0.7% grade

72 ft elev

12M

10:15/mi

2:00:52

↓ 46 ft0.8% grade

33 ft elev

20K· 12.43 mi

10:55/mi

2:05:32

↑ 16 ft0.7% grade

54 ft elev

13M

10:52/mi

2:11:45

↓ 26 ft0.8% grade

36 ft elev

Half· 13.11 mi

10:52/mi

2:12:57

→ flat0.5% grade

49 ft elev

14M

10:28/mi

2:22:16

↑ 23 ft↓ 39 ft0.3% grade

36 ft elev

15M

11:21/mi

2:33:37

↑ 62 ft1.1% grade

93 ft elev

25K· 15.53 mi

12:25/mi

2:40:15

↑ 68 ft2.4% grade

169 ft elev

16M

10:18/mi

2:45:03

↓ 45 ft1.7% grade

125 ft elev

17M

11:18/mi

2:56:21

↑ 10 ft↓ 59 ft0.9% grade

59 ft elev

18M

11:07/mi

3:07:28

↑ 30 ft↓ 49 ft0.4% grade

39 ft elev

30K· 18.64 mi

11:21/mi

3:14:45

→ flat

41 ft elev

19M

11:19/mi

3:18:49

→ flat0.2% grade

39 ft elev

20M

12:16/mi

3:31:05

↑ 43 ft0.7% grade

72 ft elev

21M

12:03/mi

3:43:08

↑ 20 ft↓ 39 ft0.4% grade

53 ft elev

35K· 21.75 mi

12:06/mi

3:52:11

↑ 20 ft↓ 23 ft

52 ft elev

22M

12:33/mi

3:55:21

→ flat0.2% grade

51 ft elev

23M

12:08/mi

4:07:29

↓ 10 ft0.1% grade

46 ft elev

24M

12:47/mi

4:20:16

↑ 92 ft1.7% grade

138 ft elev

40K· 24.85 mi

13:25/mi

4:31:44

↑ 13 ft↓ 62 ft1.1% grade

93 ft elev

25M

12:16/mi

4:33:31

↑ 10 ft1.3% grade

111 ft elev

26M

14:41/mi

4:48:12

↑ 39 ft↓ 39 ft

112 ft elev

Finish· 26.22 mi

12:02/mi

4:50:50

↓ 10 ft0.9% grade

102 ft elev

Course Elevation

926ft

Total climb

232ft

Range

30 to 262 ft

943ft

Total descent

About the height of two Statues of Liberty

The Course

Half Splits

1st Half· via Half

2:12:5710:08 /mi⚡ faster

2nd Half

2:37:5312:03 /mi+18.8%

Positive split — 18.8% slower in the second half

AI Race Performance Report

David's race, broken down like a coach

The full Race Story, performance analysis, segment & passing breakdowns, and where the race turned. Free to unlock — for anyone.

Free account · no payment

Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
3M	29:55	9:58	3.00 mi	29:55	9:58	-
5K	31:01	9:59	0.11 mi	1:06	10:18	+0:20
4M	39:53	9:58	0.89 mi	8:52	9:56	-0:22
5M	49:45	9:57	1.00 mi	9:52	9:52	-0:04
6M	59:38	9:56	1.00 mi	9:53	9:53	+0:01
10K	1:01:48	9:57	0.21 mi	2:10	10:08	+0:15
7M	1:09:20	9:54	0.79 mi	7:32	9:35	-0:33
8M	1:19:37	9:57	1.00 mi	10:17	10:17	+0:42
9M	1:29:56	10:00	1.00 mi	10:19	10:19	+0:02
15K	1:33:05	9:59	0.32 mi	3:09	9:49	-0:30
10M	1:39:56	10:00	0.68 mi	6:51	10:05	+0:16
11M	1:50:37	10:03	1.00 mi	10:41	10:41	+0:36
12M	2:00:52	10:04	1.00 mi	10:15	10:15	-0:26
20K	2:05:32	10:06	0.43 mi	4:40	10:55	+0:40
13M	2:11:45	10:08	0.57 mi	6:13	10:52	-0:03
Half(13.11 mi)	2:12:57	10:08	0.11 mi	1:12	10:52	0:00
14M	2:22:16	10:10	0.89 mi	9:19	10:28	-0:24
15M	2:33:37	10:14	1.00 mi	11:21	11:21	+0:53
25K	2:40:15	10:19	0.53 mi	6:38	12:25	+1:04
16M	2:45:03	10:19	0.47 mi	4:48	10:18	-2:07
17M	2:56:21	10:22	1.00 mi	11:18	11:18	+1:00
18M	3:07:28	10:25	1.00 mi	11:07	11:07	-0:11
30K	3:14:45	10:27	0.64 mi	7:17	11:21	+0:14
19M	3:18:49	10:28	0.36 mi	4:04	11:19	-0:02
20M	3:31:05	10:33	1.00 mi	12:16	12:16	+0:57
21M	3:43:08	10:38	1.00 mi	12:03	12:03	-0:13
35K	3:52:11	10:41	0.75 mi	9:03	12:06	+0:03
22M	3:55:21	10:42	0.25 mi	3:10	12:33	+0:27
23M	4:07:29	10:46	1.00 mi	12:08	12:08	-0:25
24M	4:20:16	10:51	1.00 mi	12:47	12:47	+0:39
40K	4:31:44	10:56	0.85 mi	11:28	13:25	+0:38
25M	4:33:31	10:56	0.15 mi	1:47	12:16	-1:09
26M	4:48:12	11:05	1.00 mi	14:41	14:41	+2:25
Finish(26.22 mi)	4:50:50	11:06	0.22 mi	2:38	12:02	-2:39

Trend:

Faster pace

Steady pace

Slower pace

Est.Checkpoint not recorded (estimated)

~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

9:35 /mi

Average Pace

11:06 /mi

Slowest Pace

14:41 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:54:59

40% of race

Time at Steady Pace

1:17:12

27% of race

Time at Slower Pace

1:38:39

34% of race

Average Pace: 11:06 /mi

Loading chart...

Faster pace (< avg)

Steady pace (≈ avg)

Slower pace (> avg)

Heatmap

0mi6.6mi13.1mi19.7mi26.2mi

Pace:

Faster

Steady

Slower

Checkpoint and Segment Rankings

Checkpoint	Seg. Dist	Overall	Males	M50-54	Seg. Overall	Seg. Males	Seg. M50-54
3M	3.00 mi	35249	22305	1933	36812	22502	1925
5K	0.11 mi	35243+6	22277+28	1923+10	39940	23961	2085
4M	0.89 mi	35552-309	22431-154	1935-12	36846	23036	1982
5M	1.00 mi	35709-157	22509-78	1944-9	36752	22969	1979
6M	1.00 mi	35652+57	22478+31	1926+18	35735	22444	1896
10K	0.21 mi	35686-34	22498-20	1931-5	37975	23447	2014
7M	0.79 mi	35536+150	22435+63	1921+10	34775	22161	1896
8M	1.00 mi	35786-250	22552-117	1924-3	37900	23524	1998
9M	1.00 mi	36016-230	22670-118	1929-5	38055	23660	2040
15K	0.32 mi	35914+102	22619+51	1926+3	34652	21887	1879
10M	0.68 mi	35787+127	22549+70	1919+7	35315	22086	1869
11M	1.00 mi	36130-343	22688-139	1934-15	40266	24316	2094
12M	1.00 mi	35992+138	22623+65	1921+13	35614	22302	1891
20K	0.43 mi	36219-227	22708-85	1929-8	42298	25060	2181
13M	0.57 mi	36166+53	22657+51	1929	36812	22502	1925
Half(13.11 mi)	0.11 mi	36180-14	22660-3	1925+4	37672	22880	1952
14M	0.89 mi	36046+134	22566+94	1920+5	35761	21957	1864
15M	1.00 mi	36119-73	22555+11	1916+4	37936	22691	1950
25K	0.53 mi	36467-348	22673-118	1934-18	42800	24661	2143
16M	0.47 mi	36350+117	22596+77	1931+3	35372	21557	1875
17M	1.00 mi	36570-220	22656-60	1939-8	40146	23601	2041
18M	1.00 mi	36563+7	22574+82	1929+10	37482	22046	1914
30K	0.64 mi	36472+91	22472+102	1921+8	36065	21017	1835
19M	0.36 mi	36463+9	22446+26	1918+3	38909	22204	1924
20M	1.00 mi	36543-80	22368+78	1913+5	38495	21863	1886
21M	1.00 mi	36581-38	22290+78	1904+9	37508	21191	1837
35K	0.75 mi	36658-77	22270+20	1904	39046	21857	1907
22M	0.25 mi	36724-66	22289-19	1904	42360	23353	2046
23M	1.00 mi	36873-149	22269+20	1907-3	39182	21767	1881
24M	1.00 mi	37066-193	22277-8	1900+7	41148	22642	1940
40K	0.85 mi	37627-561	22457-180	1914-14	48311	26048	2310
25M	0.15 mi	37682-55	22479-22	1919-5	44176	24246	2112
26M	1.00 mi	38923-1241	22987-508	1977-58	54907	29197	2618
Finish(26.22 mi)	0.22 mi	39029-106	23027-40	1982-5	49914	26791	2326

Segment Performance Analysis

20K→13M

0.0 - 3.0 mi

Top 60%

118 ft79 ft

↑ 182ft↓ 221ft

194 ft

Overall

36812

Males

22502

No position changes recorded for this athlete.

More below

See the rest of David's race

Checkpoint splits, rankings, passing analysis and qualifying. One free sign-in reveals them here — and on every race you look up.

All Results

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

New York Road Runners