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SF MARATHON 1ST HALF 2023

Luchen Xu

Bib: 15364•M•Age: 35

Sunnyvale, CA

0:00
0:00
/ mi
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Overall
#0 / 6072
Top 35%
Gender (Male)
#0 / 3331
Top 43%
Division (M35-39)
#0 / 464
Top 41%
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
8:54/mi
12:28
→ flat
2.13M
17:29/mi
25:14
→ flat
6.43M
11:17/mi
1:13:46
↑ 274↓ 780.9%
6.62M
-35:-6/mi
1:07:17
↑ 161.6%
10.65M
9:28/mi
1:45:25
↑ 153↓ 3611.0%
Finish· 13.11 mi
9:12/mi
2:08:03
↑ 244↓ 1141.0%

The Course

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Half Splits

1st Half· via 6.62M
Distance6.62 mi
Time1:07:17
Pace10:10 /mi
2nd Half✓ Faster
Distance6.49 mi
Time1:00:46
Pace9:22 /mi
📊Negative Split: 9.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.40M
1.40 mi07:06:5812:288:5412:28
8:54
-
2.13M
2.13 mi07:19:4425:1411:5112:46
17:29
+8:35
6.43M
6.43 mi08:08:161:13:4611:2848:32
11:17
-6:12
6.62M
6.62 mi08:01:471:07:1710:10
-35:-6
-46:23
10.65M
10.65 mi08:39:551:45:259:5438:08
9:28
+44:34
Finish
13.11 mi09:02:332:08:039:4622:38
9:12
-0:16

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

-36:-6 /mi

Average Pace

9:46 /mi

Slowest Pace

17:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:03

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:46 /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 mi07:06:5812:288:5412:28
8:54
#2219
2.13M
2.13 mi07:19:4425:1411:5112:46
17:29
#1879
6.43M
6.43 mi08:08:161:13:4611:2848:32
11:17
#2094
6.62M
6.62 mi08:01:471:07:1710:10
-35:-6
#2086
10.65M
10.65 mi08:39:551:45:259:5438:08
9:28
#2082
Finish
13.11 mi09:02:332:08:039:4622:38
9:12
#2122
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
1.40M1.40 mi1.40 mi221914931972219(Top 37%)1493(Top 45%)197(Top 42%)
2.13M2.13 mi0.73 mi1879+3401296+197166+311729(Top 28%)1190(Top 36%)146(Top 31%)
6.43M6.43 mi4.30 mi2094-2151437-141198-322287(Top 38%)1543(Top 46%)215(Top 46%)
6.62M6.62 mi0.19 mi2086+81425+12196+2---
10.65M10.65 mi4.03 mi2082+41424+1195+12263(Top 37%)1523(Top 46%)206(Top 44%)
Finish13.11 mi2.46 mi2122-401444-20192+32371(Top 39%)1547(Top 46%)215(Top 46%)

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 37%
~flat
+3ft-2ft

Overall

2219

Males

1493

M35-39

197

1.40M→2.13M

1.4 - 2.1 mi

Top 28%
~flat
+3ft-1ft

Overall

1729

Males

1190

M35-39

147

2.13M→6.43M

2.1 - 6.4 mi

Top 38%
×17story building
+274ft-78ft

Overall

2287

Males

1543

M35-39

215

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Males

-

M35-39

-

6.62M→10.65M

6.6 - 10.7 mi

Top 37%
×21story building
+153ft-361ft

Overall

2263

Males

1523

M35-39

206

10.65M→Finish

10.7 - 13.1 mi

Top 39%
×17story building
+244ft-114ft

Overall

2371

Males

1547

M35-39

215

Passing Analysis

Category:
Athletes Passed
744*
Passed By
647
Net Change
+97
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#2219
1.40M → 2.13M37737+340#2219#1879
2.13M → 6.43M119*334-215#1879#2094
6.43M → 6.62M6254+8#2094#2086
6.62M → 10.65M123*119+4#2086#2082
10.65M → Finish63*103-40#2082#2122
TOTALS744*647+97

* 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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