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SF MARATHON 1ST HALF 2023

Jiemin Zeng

Bib: 11975•M•Age: 25

Seattle, WA

0:00
0:00
/ mi
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Overall
#0 / 6072
Top 43%
Gender (Male)
#0 / 3331
Division (M25-29)
#0 / 688
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
8:06/mi
11:20
→ flat
2.13M
17:29/mi
24:06
→ flat
6.43M
10:43/mi
1:10:10
↑ 274↓ 780.9%
6.62M
-34:-8/mi
1:03:52
↑ 161.6%
10.65M
9:40/mi
1:42:49
↑ 153↓ 3611.0%
Finish· 13.11 mi
12:19/mi
2:13:06
↑ 244↓ 1141.0%

The Course

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Half Splits

1st Half· via 6.62MFaster
Distance6.62 mi
Time1:03:52
Pace9:39 /mi
2nd Half
Distance6.49 mi
Time1:09:14
Pace10:40 /mi
📊Positive Split: 8.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.40M
1.40 mi07:02:4611:208:0611:20
8:06
-
2.13M
2.13 mi07:15:3224:0611:1912:46
17:29
+9:23
6.43M
6.43 mi08:01:361:10:1010:5546:04
10:43
-6:46
6.62M
6.62 mi07:55:181:03:529:39
-34:-8
-44:51
10.65M
10.65 mi08:34:151:42:499:3938:57
9:40
+43:48
Finish
13.11 mi09:04:322:13:0610:0930:17
12:19
+2:39

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

-35:-8 /mi

Average Pace

10:09 /mi

Slowest Pace

17:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:06

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:09 /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 mi07:02:4611:208:0611:20
8:06
#999
2.13M
2.13 mi07:15:3224:0611:1912:46
17:29
#1297
6.43M
6.43 mi08:01:361:10:1010:5546:04
10:43
#1450
6.62M
6.62 mi07:55:181:03:529:39
-34:-8
#1393
10.65M
10.65 mi08:34:151:42:499:3938:57
9:40
#1768
Finish
13.11 mi09:04:322:13:0610:0930:17
12:19
#2638
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
1.40M1.40 mi1.40 mi999739185999(Top 16%)739(Top 22%)185(Top 27%)
2.13M2.13 mi0.73 mi1297-298925-186233-481732(Top 29%)1192(Top 36%)286(Top 42%)
6.43M6.43 mi4.30 mi1450-1531052-127258-251633(Top 27%)1159(Top 35%)278(Top 40%)
6.62M6.62 mi0.19 mi1393+571010+42245+13---
10.65M10.65 mi4.03 mi1768-3751241-231294-492543(Top 42%)1679(Top 50%)391(Top 57%)
Finish13.11 mi2.46 mi2638-8701739-498406-1125101(Top 84%)2911(Top 87%)632(Top 92%)

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 16%
~flat
+3ft-2ft

Overall

999

Males

739

M25-29

187

1.40M→2.13M

1.4 - 2.1 mi

Top 29%
~flat
+3ft-1ft

Overall

1732

Males

1192

M25-29

291

2.13M→6.43M

2.1 - 6.4 mi

Top 27%
×17story building
+274ft-78ft

Overall

1633

Males

1159

M25-29

280

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Males

-

M25-29

-

6.62M→10.65M

6.6 - 10.7 mi

Top 42%
×21story building
+153ft-361ft

Overall

2543

Males

1679

M25-29

392

10.65M→Finish

10.7 - 13.1 mi

Top 84%
×17story building
+244ft-114ft

Overall

5101

Males

2911

M25-29

632

Passing Analysis

Category:
Athletes Passed
209*
Passed By
1848
Net Change
-1639
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#999
1.40M → 2.13M23321-298#999#1297
2.13M → 6.43M86*239-153#1297#1450
6.43M → 6.62M7922+57#1450#1393
6.62M → 10.65M15*390-375#1393#1768
10.65M → Finish6*876-870#1768#2638
TOTALS209*1848-1639

* 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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