Shirley Koo

Milpitas, CA

Bib: 36270 F 52

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 3682

Gender (Female)

#0 / 1986

Masters (Masters Women)

#0 / 490

Division (F50-54)

#0 / 87

Top 39%

Race Day Weather

60°/50°F

scattered clouds

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Mile 1 · 29 ft

Mile 2 · 33 ft

Mile 4 · 25 ft

Mile 5 · 22 ft

Start

0:00

Race begins

29 ft elev

5K· 3.11 mi

11:43/mi

36:23

↑ 27 ft↓ 30 ft

26 ft elev

Finish· 6.21 mi

13:13/mi

1:17:26

↑ 33 ft↓ 33 ft

26 ft elev

Course Elevation

61ft

Total climb

14ft

Range

20 to 34 ft

63ft

Total descent

About the height of a single-story building

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The Course

Half Splits

1st Half· via 5K

36:2311:43 /mi⚡ faster

2nd Half

41:0313:13 /mi+12.8%

Positive split — 12.8% slower in the second half

Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Trend	Diff
5K	36:23	11:43	3.11 mi	36:23	11:43		-
Finish(6.21 mi)	1:17:26	12:28	3.10 mi	41:03	13:13		+1:30

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

11:43 /mi

Average Pace

12:28 /mi

Slowest Pace

13:13 /mi

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Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

36:23

47% of race

Time at Steady Pace

41:03

53% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 12:28 /mi

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Faster pace (< avg)

Steady pace (≈ avg)

Slower pace (> avg)

Heatmap

0mi1.6mi3.1mi4.7mi6.2mi

Pace:

Faster

Steady

Slower

Checkpoint and Segment Rankings

Checkpoint	Seg. Dist	Overall	Females	F50-54	Seg. Overall	Seg. Females	Seg. F50-54
5K	3.11 mi	2349	1089	31	2349	1089	31
Finish(6.21 mi)	3.10 mi	2527-178	1200-111	34-3	2706	1336	40

Segment Performance Analysis

Start → 5K

0.0 - 3.1 mi

Top 64%

29 ft26 ft

↑ 27ft↓ 30ft

8 ft

Overall

2349

Females

1089

F50-54

5K→Finish

3.1 - 6.2 mi

Top 73%

26 ft26 ft

↑ 33ft↓ 33ft

9 ft

Overall

2706

Females

1336

F50-54

Passing Analysis

No position changes recorded for this athlete.

All Results

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Race managed by

The San Francisco Marathon