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SF MARATHON 1ST HALF 2023

Megan Choi

Bib: 16462•F•Age: 36

South San Francisco, CA

0:00
0:00
/ mi
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Overall
#0 / 6072
Gender (Female)
#0 / 2732
Top 43%
Division (F35-39)
#0 / 359
Top 40%
Race Day Weather
60°/50°F
overcast clouds

⏱️ 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
1.40M
9:41/mi
13:33
→ flat
2.13M
19:49/mi
28:01
→ flat
6.43M
12:09/mi
1:20:14
↑ 274↓ 780.9%
6.62M
-36:-19/mi
1:13:31
↑ 161.6%
10.65M
10:19/mi
1:55:04
↑ 153↓ 3611.0%
Finish· 13.11 mi
9:30/mi
2:18:26
↑ 244↓ 1141.0%

The Course

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Half Splits

1st Half· via 6.62M
Distance6.62 mi
Time1:13:31
Pace11:06 /mi
2nd Half✓ Faster
Distance6.49 mi
Time1:04:55
Pace10:00 /mi
📊Negative Split: 11.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.40M
1.40 mi06:52:5913:339:4113:33
9:41
-
2.13M
2.13 mi07:07:2728:0113:0914:28
19:49
+10:08
6.43M
6.43 mi07:59:401:20:1412:2952:13
12:09
-7:40
6.62M
6.62 mi07:52:571:13:3111:06
-36:-19
-48:28
10.65M
10.65 mi08:34:301:55:0410:4841:33
10:19
+46:38
Finish
13.11 mi08:57:522:18:2610:3423:22
9:30
-0:49

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

-37:-19 /mi

Average Pace

10:34 /mi

Slowest Pace

19:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:26

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:34 /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.

Loading...
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

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
1.40M
1.40 mi06:52:5913:339:4113:33
9:41
#3547
2.13M
2.13 mi07:07:2728:0113:0914:28
19:49
#3512
6.43M
6.43 mi07:59:401:20:1412:2952:13
12:09
#3287
6.62M
6.62 mi07:52:571:13:3111:06
-36:-19
#3347
10.65M
10.65 mi08:34:301:55:0410:4841:33
10:19
#3323
Finish
13.11 mi08:57:522:18:2610:3423:22
9:30
#3207
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF35-39Seg. OverallSeg. FemalesSeg. F35-39
1.40M1.40 mi1.40 mi354713111593547(Top 58%)1311(Top 48%)159(Top 44%)
2.13M2.13 mi0.73 mi3512+351299+12163-43655(Top 60%)1373(Top 50%)176(Top 49%)
6.43M6.43 mi4.30 mi3287+2251193+106145+183287(Top 54%)1199(Top 44%)150(Top 42%)
6.62M6.62 mi0.19 mi3347-601236-43154-9---
10.65M10.65 mi4.03 mi3323+241204+32149+53372(Top 56%)1264(Top 46%)153(Top 43%)
Finish13.11 mi2.46 mi3207+1161162+42145+42733(Top 45%)987(Top 36%)125(Top 35%)

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 58%
~flat
+3ft-2ft

Overall

3547

Females

1311

F35-39

159

1.40M→2.13M

1.4 - 2.1 mi

Top 60%
~flat
+3ft-1ft

Overall

3655

Females

1373

F35-39

177

2.13M→6.43M

2.1 - 6.4 mi

Top 54%
×17story building
+274ft-78ft

Overall

3287

Females

1199

F35-39

150

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Females

-

F35-39

-

6.62M→10.65M

6.6 - 10.7 mi

Top 56%
×21story building
+153ft-361ft

Overall

3372

Females

1264

F35-39

153

10.65M→Finish

10.7 - 13.1 mi

Top 45%
×17story building
+244ft-114ft

Overall

2733

Females

987

F35-39

125

Passing Analysis

Category:
Athletes Passed
948*
Passed By
608
Net Change
+340
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#3547
1.40M → 2.13M212177+35#3547#3512
2.13M → 6.43M392*167+225#3512#3287
6.43M → 6.62M42102-60#3287#3347
6.62M → 10.65M149*125+24#3347#3323
10.65M → Finish153*37+116#3323#3207
TOTALS948*608+340

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

📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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The San Francisco Marathon

The San Francisco Marathon

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