Mason Tsai

San Francisco, CA

Bib: 24547 M

0:00

0:00

/ mi

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Overall

#0 / 15907

Top 3%

Gender (Male)

#0 / 9934

Top 4%

Division (M20-24)

#0 / 1037

Top 7%

Race Day Weather

43°/33°F

overcast clouds

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

27 ft elev

5K· 3.11 mi

7:16/mi

22:34

↑ 279 ft↓ 164 ft0.7% grade

140 ft elev

10K· 6.21 mi

6:44/mi

43:30

↑ 103 ft↓ 217 ft0.7% grade

25 ft elev

15K· 9.32 mi

6:39/mi

1:04:09

↑ 51 ft↓ 55 ft

21 ft elev

21K· 13.05 mi

6:41/mi

1:29:03

↑ 20 ft↓ 37 ft

4 ft elev

25K· 15.53 mi

6:38/mi

1:45:32

↑ 35 ft0.2% grade

30 ft elev

30K· 18.64 mi

7:08/mi

2:07:41

↑ 58 ft↓ 57 ft

30 ft elev

35K· 21.75 mi

7:35/mi

2:31:14

↑ 98 ft↓ 92 ft

36 ft elev

40K· 24.85 mi

8:04/mi

2:56:18

↑ 36 ft↓ 53 ft0.1% grade

18 ft elev

Finish· 26.22 mi

7:55/mi

3:07:06

↑ 80 ft↓ 24 ft0.8% grade

74 ft elev

Course Elevation

3–237 ft

≈

×20story building

•▲ 764 ft climb · ▼ 717 ft descent

The Course

Half Splits

1st Half· via 21K

1:29:036:49 /mi⚡ faster

2nd Half

1:38:027:27 /mi+10.1%

Positive split — 10.1% slower in the second half

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	22:34	7:16	3.11 mi	22:34	7:16	-
10K	43:30	7:00	3.10 mi	20:56	6:44	-0:32
15K	1:04:09	6:53	3.11 mi	20:39	6:39	-0:05
21K	1:29:03	6:49	3.73 mi	24:54	6:41	+0:02
25K	1:45:32	6:48	2.48 mi	16:29	6:38	-0:03
30K	2:07:41	6:51	3.11 mi	22:09	7:08	+0:30
35K	2:31:14	6:57	3.11 mi	23:33	7:35	+0:27
40K	2:56:18	7:06	3.10 mi	25:04	8:04	+0:29
Finish(26.22 mi)	3:07:06	7:08	1.37 mi	10:48	7:55	-0:09

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:38 /mi

Average Pace

7:08 /mi

Slowest Pace

8:04 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:22:58

44% of race

Time at Steady Pace

44:43

24% of race

Time at Slower Pace

59:25

32% of race

Average Pace: 7:08 /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	M20-24	Seg. Overall	Seg. Males	Seg. M20-24
5K	3.11 mi	575	509	82	264	245	50
10K	3.10 mi	516+59	464+45	80+2	469	429	78
15K	3.11 mi	450+66	410+54	74+6	264	245	50
21K	3.73 mi	372+78	344+66	68+6	251	234	50
25K	2.48 mi	361+11	336+8	66+2	368	338	65
30K	3.11 mi	381-20	349-13	68-2	447	397	74
35K	3.11 mi	400-19	362-13	66+2	836	700	115
40K	3.10 mi	433-33	384-22	68-2	1142	903	145
Finish(26.22 mi)	1.37 mi	447-14	396-12	68	1029	829	151

829

Passing Analysis

Category:

▲Net Change

0 passed by0* passed

Segment	Movement	Rank
Start → 5K	-	#575
5K → 10K	564+59	#575 → #516
10K → 15K	167*+66	#516 → #450
15K → 21K	078*+78	#450 → #372
21K → 25K	415+11	#372 → #361
25K → 30K	299-20	#361 → #381
30K → 35K	3112*-19	#381 → #400
35K → 40K	385*-33	#400 → #433
40K → Finish	162-14	#433 → #447
TOTALS	124252*+128	#575 → #447

* Includes athletes who did not complete a segment (DNF/DNQ).

Passing Visualized

Category:

Passing Circle

Position Flow

Race Lanes

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Results processed 21 days ago

Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

U.S. Marine Corps Community Services (MCCS)

Race timed by

Timing Productions