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SF MARATHON 1ST HALF 2023

Crystal Zhou

Bib: 11452•F•Age: 23

San Francisco, CA

0:00
0:00
/ mi
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Overall
#0 / 6072
Gender (Female)
#0 / 2732
F20-29
#0 / 376
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
9:48/mi
13:43
→ flat
2.13M
21:38/mi
29:31
→ flat
6.43M
14:10/mi
1:30:25
↑ 274↓ 780.9%
6.62M
-44:00/mi
1:22:03
↑ 161.6%
10.65M
12:09/mi
2:11:02
↑ 153↓ 3611.0%
Finish· 13.11 mi
11:26/mi
2:39:09
↑ 244↓ 1141.0%

The Course

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Half Splits

1st Half· via 6.62M
Distance6.62 mi
Time1:22:03
Pace12:24 /mi
2nd Half✓ Faster
Distance6.49 mi
Time1:17:06
Pace11:53 /mi
📊Negative Split: 6.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.40M
1.40 mi06:55:5813:439:4813:43
9:48
-
2.13M
2.13 mi07:11:4629:3113:5115:48
21:38
+11:50
6.43M
6.43 mi08:12:401:30:2514:041:00:54
14:10
-7:28
6.62M
6.62 mi08:04:181:22:0312:24
-44:00
-58:10
10.65M
10.65 mi08:53:172:11:0212:1848:59
12:09
+56:09
Finish
13.11 mi09:21:242:39:0912:0828:07
11:26
-0:43

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

-44:00 /mi

Average Pace

12:08 /mi

Slowest Pace

21:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:39:09

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 12:08 /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 mi06:55:5813:439:4813:43
9:48
#3736
2.13M
2.13 mi07:11:4629:3113:5115:48
21:38
#4271
6.43M
6.43 mi08:12:401:30:2514:041:00:54
14:10
#4791
6.62M
6.62 mi08:04:181:22:0312:24
-44:00
#4731
10.65M
10.65 mi08:53:172:11:0212:1848:59
12:09
#4879
Finish
13.11 mi09:21:242:39:0912:0828:07
11:26
#4808
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF20-29Seg. OverallSeg. FemalesSeg. F20-29
1.40M1.40 mi1.40 mi373614072373736(Top 62%)1407(Top 52%)237(Top 63%)
2.13M2.13 mi0.73 mi4271-5351665-258285-484845(Top 80%)2004(Top 73%)323(Top 86%)
6.43M6.43 mi4.30 mi4791-5201952-287315-304996(Top 82%)2077(Top 76%)320(Top 85%)
6.62M6.62 mi0.19 mi4731+601917+35306+9---
10.65M10.65 mi4.03 mi4879-1482011-94320-145081(Top 84%)2155(Top 79%)320(Top 85%)
Finish13.11 mi2.46 mi4808+711969+42317+34530(Top 75%)1878(Top 69%)303(Top 81%)

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 62%
~flat
+3ft-2ft

Overall

3736

Females

1407

F20-24

237

1.40M→2.13M

1.4 - 2.1 mi

Top 80%
~flat
+3ft-1ft

Overall

4845

Females

2004

F20-24

323

2.13M→6.43M

2.1 - 6.4 mi

Top 82%
×17story building
+274ft-78ft

Overall

4996

Females

2077

F20-24

320

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Females

-

F20-24

-

6.62M→10.65M

6.6 - 10.7 mi

Top 84%
×21story building
+153ft-361ft

Overall

5081

Females

2155

F20-24

320

10.65M→Finish

10.7 - 13.1 mi

Top 75%
×17story building
+244ft-114ft

Overall

4530

Females

1878

F20-24

303

Passing Analysis

Category:
Athletes Passed
404*
Passed By
1476
Net Change
-1072
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#3736
1.40M → 2.13M45580-535#3736#4271
2.13M → 6.43M109*629-520#4271#4791
6.43M → 6.62M9131+60#4791#4731
6.62M → 10.65M61*209-148#4731#4879
10.65M → Finish98*27+71#4879#4808
TOTALS404*1476-1072

* 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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