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SF MARATHON 1ST HALF 2023

Amber Jackson

San Francisco, CA

Bib: 12687 F 33

0:00
0:00
/ mi
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Overall
#0 / 6072
Top 37%
Gender (Female)
#0 / 2732
Top 27%
Division (F30-34)
#0 / 557
Top 28%
Race Day Weather
60°/50°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
1.40M
8:04/mi
11:18
→ flat
2.13M
16:34/mi
23:24
→ flat
6.43M
11:21/mi
1:12:13
↑ 274↓ 78
6.62M
-37:-17/mi
1:05:19
↑ 16
10.65M
9:51/mi
1:45:01
↑ 153↓ 361
Finish· 13.11 mi
9:53/mi
2:09:20
↑ 244↓ 114
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:05:199:52 /mi+2.0%
2nd Half
1:04:019:52 /mi✓ faster
Negative split — 2.0% faster in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
1.40M
11:188:041.40 mi11:18
8:04
-
2.13M
23:2410:590.73 mi12:06
16:34
+8:30
6.43M
1:12:1311:144.30 mi48:49
11:21
-5:13
6.62M
1:05:199:520.19 mi
-37:-17
-48:38
10.65M
1:45:019:524.03 mi39:42
9:51
+47:08
Finish(13.11 mi)
2:09:209:522.46 mi24:19
9:53
+0:02
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-38:-17 /mi

Average Pace

9:52 /mi

Slowest Pace

16:34 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:09:20

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:52 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
1.40M1.40 mi9592495695924956
2.13M0.73 mi1006-47265-1658-2114231370
6.43M4.30 mi1806-800544-279127-692383784169
6.62M0.19 mi1655+151493+51112+15---
10.65M4.03 mi2025-370633-140138-262761956207
Finish(13.11 mi)2.46 mi2256-231731-98154-1631911195251

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 16%
~flat
+3ft-2ft

Overall

959

Females

249

F30-34

56

1.40M→2.13M

1.4 - 2.1 mi

Top 19%
~flat
+3ft-1ft

Overall

1142

Females

313

F30-34

70

2.13M→6.43M

2.1 - 6.4 mi

Top 39%
×17story building
+274ft-78ft

Overall

2383

Females

784

F30-34

169

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Females

-

F30-34

-

6.62M→10.65M

6.6 - 10.7 mi

Top 45%
×21story building
+153ft-361ft

Overall

2761

Females

956

F30-34

207

10.65M→Finish

10.7 - 13.1 mi

Top 53%
×17story building
+244ft-114ft

Overall

3191

Females

1195

F30-34

251

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 1.40M-#959
1.40M → 2.13M
11972-47
#959 → #1006
2.13M → 6.43M
81212*-800
#1006 → #1806
6.43M → 6.62M
8159+151
#1806 → #1655
6.62M → 10.65M
38616*-370
#1655 → #2025
10.65M → Finish
25625*-231
#2025 → #2256
TOTALS
1581284*-1297
#959 → #2256

* Includes athletes who did not complete a segment (DNF/DNQ).

Passing Visualized

Category:
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Passing Circle

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Position Flow

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Race Lanes

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Public Race Data

The San Francisco Marathon

The San Francisco Marathon

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