Aaron Mass

San Francisco, CA

Bib: 1858 M 41

Masters

0:00

0:00

/ mi

Masters

Be the first to cheer!

Overall

#0 / 1437

Top 6%

Gender (Male)

#0 / 830

Top 9%

Masters (Masters Men)

#0 / 390

Top 3%

Division (M40-44)

#0 / 107

Top 7%

Race Day Weather

41°/31°F

light rain

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Mile 10 · 204 ft

Mile 15 · 154 ft

Start

0:00

Race begins

343 ft elev

6.2M

6:52/mi

42:36

↑ 218 ft↓ 323 ft0.3% grade

236 ft elev

13.1M

6:49/mi

1:29:38

↑ 132 ft↓ 211 ft0.2% grade

152 ft elev

20M

7:13/mi

2:19:27

↑ 195 ft↓ 222 ft

125 ft elev

Finish· 26.22 mi

7:48/mi

3:07:57

↑ 64 ft↓ 131 ft0.2% grade

60 ft elev

Course Elevation

611ft

Total climb

353ft

Range

58 to 411 ft

894ft

Total descent

About the height of a redwood tree

The Course

Half Splits

1st Half· via 13.1M

1:29:386:51 /mi⚡ faster

2nd Half

1:38:197:30 /mi+9.7%

Positive split — 9.7% slower in the second half

AI Race Performance Report

Aaron'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
6.2M	42:36	6:52	6.20 mi	42:36	6:52	-
13.1M	1:29:38	6:51	6.90 mi	47:02	6:49	-0:03
20M	2:19:27	6:58	6.90 mi	49:49	7:13	+0:24
Finish(26.22 mi)	3:07:57	7:10	6.22 mi	48:30	7:48	+0:35

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:49 /mi

Average Pace

7:10 /mi

Slowest Pace

7:48 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:19:27

74% of race

Time at Steady Pace

48:30

26% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:10 /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	M40-44	Seg. Overall	Seg. Males	Seg. M40-44
6.2M	6.20 mi	78	68	4	78	68	4
13.1M	6.90 mi	66+12	58+10	4	60	54	4
20M	6.90 mi	79-13	70-12	6-2	91	79	6
Finish(26.22 mi)	6.22 mi	86-7	75-5	7-1	166	128	16

Segment Performance Analysis

Start → 6.2M

0.0 - 6.2 mi

Top 5%

343 ft238 ft

↑ 218ft↓ 323ft

175 ft

Overall

Males

M40-44

6.2M→13.1M

6.2 - 13.1 mi

Top 4%

231 ft153 ft

↑ 132ft↓ 211ft

79 ft

Overall

Males

M40-44

13.1M→20M

13.1 - 20.0 mi

Top 6%

152 ft125 ft

↑ 195ft↓ 222ft

104 ft

Overall

Males

M40-44

20M→Finish

20.0 - 26.2 mi

Top 12%

126 ft60 ft

↑ 64ft↓ 131ft

66 ft

Overall

166

Males

128

M40-44

Passing Analysis

No position changes recorded for this athlete.

More below

See the rest of Aaron'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