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SF MARATHON 1ST HALF 2023

Zhizhi Kong

Bib: 13741•F•Age: 29

Berkeley, CA

0:00
0:00
/ mi
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Overall
#0 / 6072
Gender (Female)
#0 / 2732
Division (F25-29)
#0 / 629
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
9:10/mi
12:50
→ flat
2.13M
21:48/mi
28:45
→ flat
6.43M
13:59/mi
1:28:54
↑ 274↓ 780.9%
6.62M
-50:-58/mi
1:19:24
↑ 161.6%
10.65M
12:05/mi
2:08:07
↑ 153↓ 3611.0%
Finish· 13.11 mi
12:05/mi
2:37:49
↑ 244↓ 1141.0%

The Course

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Half Splits

1st Half· via 6.62M
Distance6.62 mi
Time1:19:24
Pace12:00 /mi
2nd Half✓ Faster
Distance6.49 mi
Time1:18:25
Pace12:05 /mi
📊Negative Split: 1.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.40M
1.40 mi06:55:0812:509:1012:50
9:10
-
2.13M
2.13 mi07:11:0328:4513:3015:55
21:48
+12:38
6.43M
6.43 mi08:11:121:28:5413:501:00:09
13:59
-7:49
6.62M
6.62 mi08:01:421:19:2412:00
-50:-58
-64:57
10.65M
10.65 mi08:50:252:08:0712:0248:43
12:05
+63:03
Finish
13.11 mi09:20:072:37:4912:0229:42
12:05
0:00

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

-51:-58 /mi

Average Pace

12:02 /mi

Slowest Pace

21:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:37:49

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 12:02 /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 mi06:55:0812:509:1012:50
9:10
#2681
2.13M
2.13 mi07:11:0328:4513:3015:55
21:48
#3903
6.43M
6.43 mi08:11:121:28:5413:501:00:09
13:59
#4617
6.62M
6.62 mi08:01:421:19:2412:00
-50:-58
#4359
10.65M
10.65 mi08:50:252:08:0712:0248:43
12:05
#4674
Finish
13.11 mi09:20:072:37:4912:0229:42
12:05
#4749
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
1.40M1.40 mi1.40 mi26819142482681(Top 44%)914(Top 33%)248(Top 39%)
2.13M2.13 mi0.73 mi3903-12221495-581405-1574916(Top 81%)2042(Top 75%)517(Top 82%)
6.43M6.43 mi4.30 mi4617-7141850-355487-824908(Top 81%)2028(Top 74%)518(Top 82%)
6.62M6.62 mi0.19 mi4359+2581706+144456+31---
10.65M10.65 mi4.03 mi4674-3151891-185495-395039(Top 83%)2128(Top 78%)539(Top 86%)
Finish13.11 mi2.46 mi4749-751938-47503-84963(Top 82%)2127(Top 78%)528(Top 84%)

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 44%
~flat
+3ft-2ft

Overall

2681

Females

914

F25-29

249

1.40M→2.13M

1.4 - 2.1 mi

Top 81%
~flat
+3ft-1ft

Overall

4916

Females

2042

F25-29

522

2.13M→6.43M

2.1 - 6.4 mi

Top 81%
×17story building
+274ft-78ft

Overall

4908

Females

2028

F25-29

518

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Females

-

F25-29

-

6.62M→10.65M

6.6 - 10.7 mi

Top 83%
×21story building
+153ft-361ft

Overall

5039

Females

2128

F25-29

539

10.65M→Finish

10.7 - 13.1 mi

Top 82%
×17story building
+244ft-114ft

Overall

4963

Females

2127

F25-29

528

Passing Analysis

Category:
Athletes Passed
426*
Passed By
2494
Net Change
-2068
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#2681
1.40M → 2.13M101232-1222#2681#3903
2.13M → 6.43M75*789-714#3903#4617
6.43M → 6.62M2580+258#4617#4359
6.62M → 10.65M37*352-315#4359#4674
10.65M → Finish46*121-75#4674#4749
TOTALS426*2494-2068

* 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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