Rebecca Lai

Bib: 12932•F•Age: 31

Santa Clara, CA

0:00

0:00

/ mi

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Overall

#0 / 7100

Gender (Female)

#0 / 3107

Division (F30-34)

#0 / 691

Race Day Weather

56°/46°F

light rain

⏱️ Race Timeline

Course Elevation

10–277 ft

≈

×22story building

•▲ 774 ft climb · ▼ 557 ft descent

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

1.81M

10:54/mi

19:44

→ flat

5.34M

10:46/mi

57:45

↑ 80 ft↓ 74 ft

6.15M

11:55/mi

1:07:24

↑ 126 ft2.8% grade

10.54M

11:45/mi

1:58:57

↑ 230 ft↓ 361 ft0.6% grade

11.05M

16:36/mi

2:07:25

↑ 172 ft6.4% grade

Finish· 13.11 mi

11:55/mi

2:31:58

↑ 97 ft↓ 114 ft0.2% grade

The Course

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Half Splits

1st Half· via 6.15MFaster

Distance6.15 mi

Time1:07:24

Pace10:58 /mi

2nd Half

Distance6.96 mi

Time1:24:34

Pace12:09 /mi

📊Positive Split: 25.5% slower second half

Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
1.81M	1.81 mi	07:00:33	19:44	10:54	19:44	10:54	-
5.34M	5.34 mi	07:38:34	57:45	10:49	38:01	10:46	-0:08
6.15M	6.15 mi	07:48:13	1:07:24	10:58	9:39	11:55	+1:09
10.54M	10.54 mi	08:39:46	1:58:57	11:17	51:33	11:45	-0:10
11.05M	11.05 mi	08:48:14	2:07:25	11:32	8:28	16:36	+4:51
Finish	13.11 mi	09:12:47	2:31:58	11:36	24:33	11:55	-4:41

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

10:46 /mi

Average Pace

11:36 /mi

Slowest Pace

16:36 /mi

Loading chart...

Fastest

Middle

Slowest

Average

📊Segments

Segment Time Comparison

Time at Faster Pace

57:45

38% of race

Time at Steady Pace

1:25:45

56% of race

Time at Slower Pace

8:28

6% of race

Average Pace: 11:35 /mi

Loading chart...

Faster pace (< avg)

Steady pace (≈ avg)

Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

0mi3.3mi6.6mi9.8mi13.1mi

Pace:

Faster

Steady

Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment	Pace	Rank
1.81M	1.81 mi	07:00:33	19:44	10:54	19:44	10:54	#5566
5.34M	5.34 mi	07:38:34	57:45	10:49	38:01	10:46	#4940
6.15M	6.15 mi	07:48:13	1:07:24	10:58	9:39	11:55	#4972
10.54M	10.54 mi	08:39:46	1:58:57	11:17	51:33	11:45	#5030
11.05M	11.05 mi	08:48:14	2:07:25	11:32	8:28	16:36	#5040
Finish	13.11 mi	09:12:47	2:31:58	11:36	24:33	11:55	#4991

Faster pace

Steady pace

Slower pace

Checkpoint and Segment Rankings

Checkpoint	Distance	Seg. Dist	Overall	Females	F30-34	Seg. Overall	Seg. Females	Seg. F30-34
1.81M	1.81 mi	1.81 mi	5566	2191	490	5566(Top 78%)	2191(Top 71%)	490(Top 71%)
5.34M	5.34 mi	3.53 mi	4940+626	1863+328	420+70	4691(Top 66%)	1731(Top 56%)	383(Top 55%)
6.15M	6.15 mi	0.81 mi	4972-32	1880-17	429-9	5170(Top 73%)	1987(Top 64%)	460(Top 67%)
10.54M	10.54 mi	4.39 mi	5030-58	1923-43	455-26	5147(Top 72%)	2013(Top 65%)	466(Top 67%)
11.05M	11.05 mi	0.51 mi	5040-10	1931-8	455	4940(Top 70%)	1921(Top 62%)	436(Top 63%)
Finish	13.11 mi	2.06 mi	4991+49	1921+10	451+4	4877(Top 69%)	1938(Top 62%)	455(Top 66%)

455

Passing Analysis

Category:

Athletes Passed

1018*

Passed By

443

Net Change

+575

Segment	Athletes Passed	Passed By	Net Change	Start Rank	End Rank
Start → 1.81M	-	-	-	-	#5566
1.81M → 5.34M	674*	48	+626	#5566	#4940
5.34M → 6.15M	51	83	-32	#4940	#4972
6.15M → 10.54M	156*	214	-58	#4972	#5030
10.54M → 11.05M	32	42	-10	#5030	#5040
11.05M → Finish	105*	56	+49	#5040	#4991
TOTALS	1018*	443	+575

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

📊

Passing Visuals

Category:

🔄Passing Circle

🌊Position Flow

🏃Race Lanes

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Results processed 26 days ago

Official Timing Data

Enhanced athlete results built from official timing data.

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The San Francisco Marathon

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