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SF MARATHON 1ST HALF 2023

John Kaelber

Bib: 9081•M•Age: 21

Saratoga, CA

0:00
0:00
/ mi
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Overall
#0 / 6072
Gender (Male)
#0 / 3331
M20-29
#0 / 333
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
8:30/mi
11:54
→ flat
2.13M
16:44/mi
24:07
→ flat
6.43M
12:13/mi
1:16:37
↑ 274↓ 780.9%
6.62M
-38:-26/mi
1:09:30
↑ 161.6%
10.65M
10:39/mi
1:52:27
↑ 153↓ 3611.0%
Finish· 13.11 mi
12:05/mi
2:22:09
↑ 244↓ 1141.0%

The Course

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Half Splits

1st Half· via 6.62MFaster
Distance6.62 mi
Time1:09:30
Pace10:30 /mi
2nd Half
Distance6.49 mi
Time1:12:39
Pace11:12 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.40M
1.40 mi06:45:1411:548:3011:54
8:30
-
2.13M
2.13 mi06:57:2724:0711:1912:13
16:44
+8:14
6.43M
6.43 mi07:49:571:16:3711:5552:30
12:13
-4:31
6.62M
6.62 mi07:42:501:09:3010:30
-38:-26
-50:39
10.65M
10.65 mi08:25:471:52:2710:3442:57
10:39
+49:05
Finish
13.11 mi08:55:292:22:0910:5129:42
12:05
+1:26

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

-39:-26 /mi

Average Pace

10:51 /mi

Slowest Pace

16:44 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:09

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:51 /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 mi06:45:1411:548:3011:54
8:30
#1570
2.13M
2.13 mi06:57:2724:0711:1912:13
16:44
#1305
6.43M
6.43 mi07:49:571:16:3711:5552:30
12:13
#2612
6.62M
6.62 mi07:42:501:09:3010:30
-38:-26
#2531
10.65M
10.65 mi08:25:471:52:2710:3442:57
10:39
#3015
Finish
13.11 mi08:55:292:22:0910:5129:42
12:05
#3531
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
1.40M1.40 mi1.40 mi157010961601570(Top 26%)1096(Top 33%)160(Top 48%)
2.13M2.13 mi0.73 mi1305+265931+165137+231231(Top 20%)886(Top 27%)129(Top 39%)
6.43M6.43 mi4.30 mi2612-13071745-814220-833356(Top 55%)2114(Top 63%)253(Top 76%)
6.62M6.62 mi0.19 mi2531+811695+50215+5---
10.65M10.65 mi4.03 mi3015-4841955-260240-253784(Top 62%)2315(Top 69%)262(Top 79%)
Finish13.11 mi2.46 mi3531-5162202-247261-214961(Top 82%)2831(Top 85%)295(Top 89%)

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 26%
~flat
+3ft-2ft

Overall

1570

Males

1096

M20-24

160

1.40M→2.13M

1.4 - 2.1 mi

Top 20%
~flat
+3ft-1ft

Overall

1231

Males

886

M20-24

129

2.13M→6.43M

2.1 - 6.4 mi

Top 55%
×17story building
+274ft-78ft

Overall

3356

Males

2114

M20-24

253

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Males

-

M20-24

-

6.62M→10.65M

6.6 - 10.7 mi

Top 62%
×21story building
+153ft-361ft

Overall

3784

Males

2315

M20-24

262

10.65M→Finish

10.7 - 13.1 mi

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

Overall

4961

Males

2831

M20-24

295

Passing Analysis

Category:
Athletes Passed
442*
Passed By
2403
Net Change
-1961
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#1570
1.40M → 2.13M29530+265#1570#1305
2.13M → 6.43M7*1314-1307#1305#2612
6.43M → 6.62M11332+81#2612#2531
6.62M → 10.65M18*502-484#2531#3015
10.65M → Finish9*525-516#3015#3531
TOTALS442*2403-1961

* 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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