San Francisco Marathon logo
SF MARATHON 1ST HALF 2023

Jessica Tollefson

SAN Francisco, CA

Bib: 13170 F 52

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 6072
Gender (Female)
#0 / 2732
Masters (Masters Women)
#0 / 746
Division (F50-54)
#0 / 145
Race Day Weather
60°/50°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
1.40M
11:19/mi
15:50
→ flat
11 ft elev
2.13M
22:43/mi
32:25
→ flat
13 ft elev
6.43M
14:29/mi
1:34:43
↑ 274↓ 780.9%
213 ft elev
6.62M
-52:-17/mi
1:24:58
↑ 161.6%
239 ft elev
10.65M
12:47/mi
2:16:29
↑ 153↓ 3611.0%
48 ft elev
Finish· 13.11 mi
12:39/mi
2:47:36
↑ 244↓ 1141.0%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:24:5812:50 /mi+2.7%
2nd Half
1:22:3812:44 /mi✓ faster
Negative split — 2.7% faster in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
1.40M
15:5011:191.40 mi15:50
11:19
-
2.13M
32:2515:130.73 mi16:35
22:43
+11:24
6.43M
1:34:4314:444.30 mi1:02:18
14:29
-8:14
6.62M
1:24:5812:500.19 mi
-52:-17
-66:46
10.65M
2:16:2912:494.03 mi51:31
12:47
+65:04
Finish(13.11 mi)
2:47:3612:472.46 mi31:07
12:39
-0:08
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-53:-17 /mi

Average Pace

12:47 /mi

Slowest Pace

22:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:47:36

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 12:47 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
1.40M1.40 mi5303224811253032248112
2.13M0.73 mi5244+592217+31110+252672241105
6.43M4.30 mi5214+302190+27105+551782185107
6.62M0.19 mi5075+1392109+8195+10---
10.65M4.03 mi5212-1372208-99105-1053862337119
Finish(13.11 mi)2.46 mi5239-272240-32108-352792287109

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 87%
~flat
+3ft-2ft

Overall

5303

Females

2248

F50-54

112

1.40M→2.13M

1.4 - 2.1 mi

Top 87%
~flat
+3ft-1ft

Overall

5267

Females

2241

F50-54

106

2.13M→6.43M

2.1 - 6.4 mi

Top 85%
×17story building
+274ft-78ft

Overall

5178

Females

2185

F50-54

108

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Females

-

F50-54

-

6.62M→10.65M

6.6 - 10.7 mi

Top 89%
×21story building
+153ft-361ft

Overall

5386

Females

2337

F50-54

119

10.65M→Finish

10.7 - 13.1 mi

Top 87%
×17story building
+244ft-114ft

Overall

5279

Females

2287

F50-54

109

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 1.40M-#5303
1.40M → 2.13M
131190+59
#5303 → #5244
2.13M → 6.43M
213243*+30
#5244 → #5214
6.43M → 6.62M
4143+139
#5214 → #5075
6.62M → 10.65M
18750*-137
#5075 → #5212
10.65M → Finish
8659*-27
#5212 → #5239
TOTALS
621685*+64
#5303 → #5239

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

Passing Visualized

Category:
Loading...

Passing Circle

Loading...

Position Flow

Loading...

Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events